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-rw-r--r--main/dahdi-linux-vserver/APKBUILD4
-rw-r--r--main/linux-vserver/APKBUILD10
-rw-r--r--main/linux-vserver/patch-3.0.10-vs2.3.2.1-unofficial.diff26517
-rw-r--r--main/open-vm-tools-vserver/APKBUILD4
4 files changed, 26526 insertions, 9 deletions
diff --git a/main/dahdi-linux-vserver/APKBUILD b/main/dahdi-linux-vserver/APKBUILD
index 76db9981f7..a4691a081c 100644
--- a/main/dahdi-linux-vserver/APKBUILD
+++ b/main/dahdi-linux-vserver/APKBUILD
@@ -4,8 +4,8 @@
_flavor=${FLAVOR:-vserver}
_realname=dahdi-linux
_name=$_realname-$_flavor
-_kver=3.0.9
-_kpkgrel=1
+_kver=3.0.10
+_kpkgrel=0
_myvsver=vs2.3.2.1
# verify the kernel version before entering chroot
diff --git a/main/linux-vserver/APKBUILD b/main/linux-vserver/APKBUILD
index b9ad3a3964..c2b0e0bbf4 100644
--- a/main/linux-vserver/APKBUILD
+++ b/main/linux-vserver/APKBUILD
@@ -2,8 +2,8 @@
_flavor=vserver
pkgname=linux-${_flavor}
-pkgver=3.0.9
-pkgrel=1
+pkgver=3.0.10
+pkgrel=0
_vsver=vs2.3.2.1
if [ "${pkgver##*.*.*}" = "$pkgver" ]; then
@@ -21,7 +21,7 @@ _config=${config:-kernelconfig.${CARCH}}
install=
source="http://www.kernel.org/pub/linux/kernel/v3.0/linux-$_kernver.tar.bz2
http://www.kernel.org/pub/linux/kernel/v3.0/patch-$pkgver.bz2
- http://vserver.13thfloor.at/Experimental/patch-$pkgver-$_vsver.diff
+ patch-3.0.10-vs2.3.2.1-unofficial.diff
kernelconfig.x86
kernelconfig.x86_64
"
@@ -132,7 +132,7 @@ dev() {
}
md5sums="398e95866794def22b12dfbc15ce89c0 linux-3.0.tar.bz2
-0154d21e63d3f14fc1084cdb130fab2d patch-3.0.9.bz2
-da9ad65521398d86afb61223bf4d19a1 patch-3.0.9-vs2.3.2.1.diff
+8e0391dd935d838ee3023ab9daa6b447 patch-3.0.10.bz2
+6d2fd60b055272429dde5e4043280fcb patch-3.0.10-vs2.3.2.1-unofficial.diff
fdf2737ad7b77bcfe4290ef2b0112138 kernelconfig.x86
f82d261dc117ced42e2a3dcd4b6850a5 kernelconfig.x86_64"
diff --git a/main/linux-vserver/patch-3.0.10-vs2.3.2.1-unofficial.diff b/main/linux-vserver/patch-3.0.10-vs2.3.2.1-unofficial.diff
new file mode 100644
index 0000000000..2c09d43edf
--- /dev/null
+++ b/main/linux-vserver/patch-3.0.10-vs2.3.2.1-unofficial.diff
@@ -0,0 +1,26517 @@
+diff -NurpP --minimal linux-3.0.9/Documentation/vserver/debug.txt linux-3.0.9-vs2.3.2.1/Documentation/vserver/debug.txt
+--- linux-3.0.9/Documentation/vserver/debug.txt 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/Documentation/vserver/debug.txt 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,154 @@
++
++debug_cvirt:
++
++ 2 4 "vx_map_tgid: %p/%llx: %d -> %d"
++ "vx_rmap_tgid: %p/%llx: %d -> %d"
++
++debug_dlim:
++
++ 0 1 "ALLOC (%p,#%d)%c inode (%d)"
++ "FREE (%p,#%d)%c inode"
++ 1 2 "ALLOC (%p,#%d)%c %lld bytes (%d)"
++ "FREE (%p,#%d)%c %lld bytes"
++ 2 4 "ADJUST: %lld,%lld on %ld,%ld [mult=%d]"
++ 3 8 "ext3_has_free_blocks(%p): %lu<%lu+1, %c, %u!=%u r=%d"
++ "ext3_has_free_blocks(%p): free=%lu, root=%lu"
++ "rcu_free_dl_info(%p)"
++ 4 10 "alloc_dl_info(%p,%d) = %p"
++ "dealloc_dl_info(%p)"
++ "get_dl_info(%p[#%d.%d])"
++ "put_dl_info(%p[#%d.%d])"
++ 5 20 "alloc_dl_info(%p,%d)*"
++ 6 40 "__hash_dl_info: %p[#%d]"
++ "__unhash_dl_info: %p[#%d]"
++ 7 80 "locate_dl_info(%p,#%d) = %p"
++
++debug_misc:
++
++ 0 1 "destroy_dqhash: %p [#0x%08x] c=%d"
++ "new_dqhash: %p [#0x%08x]"
++ "vroot[%d]_clr_dev: dev=%p[%lu,%d:%d]"
++ "vroot[%d]_get_real_bdev: dev=%p[%lu,%d:%d]"
++ "vroot[%d]_set_dev: dev=%p[%lu,%d:%d]"
++ "vroot_get_real_bdev not set"
++ 1 2 "cow_break_link(%s)"
++ "temp copy %s"
++ 2 4 "dentry_open(new): %p"
++ "dentry_open(old): %p"
++ "lookup_create(new): %p"
++ "old path %s"
++ "path_lookup(old): %d"
++ "vfs_create(new): %d"
++ "vfs_rename: %d"
++ "vfs_sendfile: %d"
++ 3 8 "fput(new_file=%p[#%d])"
++ "fput(old_file=%p[#%d])"
++ 4 10 "vx_info_kill(%p[#%d],%d,%d) = %d"
++ "vx_info_kill(%p[#%d],%d,%d)*"
++ 5 20 "vs_reboot(%p[#%d],%d)"
++ 6 40 "dropping task %p[#%u,%u] for %p[#%u,%u]"
++
++debug_net:
++
++ 2 4 "nx_addr_conflict(%p,%p) %d.%d,%d.%d"
++ 3 8 "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d"
++ "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d"
++ 4 10 "ip_route_connect(%p) %p,%p;%lx"
++ 5 20 "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx"
++ 6 40 "sk,egf: %p [#%d] (from %d)"
++ "sk,egn: %p [#%d] (from %d)"
++ "sk,req: %p [#%d] (from %d)"
++ "sk: %p [#%d] (from %d)"
++ "tw: %p [#%d] (from %d)"
++ 7 80 "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d"
++ "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d"
++
++debug_nid:
++
++ 0 1 "__lookup_nx_info(#%u): %p[#%u]"
++ "alloc_nx_info(%d) = %p"
++ "create_nx_info(%d) (dynamic rejected)"
++ "create_nx_info(%d) = %p (already there)"
++ "create_nx_info(%d) = %p (new)"
++ "dealloc_nx_info(%p)"
++ 1 2 "alloc_nx_info(%d)*"
++ "create_nx_info(%d)*"
++ 2 4 "get_nx_info(%p[#%d.%d])"
++ "put_nx_info(%p[#%d.%d])"
++ 3 8 "claim_nx_info(%p[#%d.%d.%d]) %p"
++ "clr_nx_info(%p[#%d.%d])"
++ "init_nx_info(%p[#%d.%d])"
++ "release_nx_info(%p[#%d.%d.%d]) %p"
++ "set_nx_info(%p[#%d.%d])"
++ 4 10 "__hash_nx_info: %p[#%d]"
++ "__nx_dynamic_id: [#%d]"
++ "__unhash_nx_info: %p[#%d.%d.%d]"
++ 5 20 "moved task %p into nxi:%p[#%d]"
++ "nx_migrate_task(%p,%p[#%d.%d.%d])"
++ "task_get_nx_info(%p)"
++ 6 40 "nx_clear_persistent(%p[#%d])"
++
++debug_quota:
++
++ 0 1 "quota_sync_dqh(%p,%d) discard inode %p"
++ 1 2 "quota_sync_dqh(%p,%d)"
++ "sync_dquots(%p,%d)"
++ "sync_dquots_dqh(%p,%d)"
++ 3 8 "do_quotactl(%p,%d,cmd=%d,id=%d,%p)"
++
++debug_switch:
++
++ 0 1 "vc: VCMD_%02d_%d[%d], %d,%p [%d,%d,%x,%x]"
++ 1 2 "vc: VCMD_%02d_%d[%d] = %08lx(%ld) [%d,%d]"
++ 4 10 "%s: (%s %s) returned %s with %d"
++
++debug_tag:
++
++ 7 80 "dx_parse_tag(%s): %d:#%d"
++ "dx_propagate_tag(%p[#%lu.%d]): %d,%d"
++
++debug_xid:
++
++ 0 1 "__lookup_vx_info(#%u): %p[#%u]"
++ "alloc_vx_info(%d) = %p"
++ "alloc_vx_info(%d)*"
++ "create_vx_info(%d) (dynamic rejected)"
++ "create_vx_info(%d) = %p (already there)"
++ "create_vx_info(%d) = %p (new)"
++ "dealloc_vx_info(%p)"
++ "loc_vx_info(%d) = %p (found)"
++ "loc_vx_info(%d) = %p (new)"
++ "loc_vx_info(%d) = %p (not available)"
++ 1 2 "create_vx_info(%d)*"
++ "loc_vx_info(%d)*"
++ 2 4 "get_vx_info(%p[#%d.%d])"
++ "put_vx_info(%p[#%d.%d])"
++ 3 8 "claim_vx_info(%p[#%d.%d.%d]) %p"
++ "clr_vx_info(%p[#%d.%d])"
++ "init_vx_info(%p[#%d.%d])"
++ "release_vx_info(%p[#%d.%d.%d]) %p"
++ "set_vx_info(%p[#%d.%d])"
++ 4 10 "__hash_vx_info: %p[#%d]"
++ "__unhash_vx_info: %p[#%d.%d.%d]"
++ "__vx_dynamic_id: [#%d]"
++ 5 20 "enter_vx_info(%p[#%d],%p) %p[#%d,%p]"
++ "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]"
++ "moved task %p into vxi:%p[#%d]"
++ "task_get_vx_info(%p)"
++ "vx_migrate_task(%p,%p[#%d.%d])"
++ 6 40 "vx_clear_persistent(%p[#%d])"
++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])"
++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])"
++ "vx_set_persistent(%p[#%d])"
++ "vx_set_reaper(%p[#%d],%p[#%d,%d])"
++ 7 80 "vx_child_reaper(%p[#%u,%u]) = %p[#%u,%u]"
++
++
++debug_limit:
++
++ n 2^n "vx_acc_cres[%5d,%s,%2d]: %5d%s"
++ "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
++
++ m 2^m "vx_acc_page[%5d,%s,%2d]: %5d%s"
++ "vx_acc_pages[%5d,%s,%2d]: %5d += %5d"
++ "vx_pages_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
+diff -NurpP --minimal linux-3.0.9/Makefile linux-3.0.9-vs2.3.2.1/Makefile
+--- linux-3.0.9/Makefile 2011-11-15 16:40:41.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/Makefile 2011-11-17 23:18:51.000000000 +0100
+@@ -1,7 +1,7 @@
+ VERSION = 3
+ PATCHLEVEL = 0
+ SUBLEVEL = 10
+-EXTRAVERSION =
++EXTRAVERSION = -vs2.3.2.1
+ NAME = Sneaky Weasel
+
+ # *DOCUMENTATION*
+diff -NurpP --minimal linux-3.0.9/arch/alpha/Kconfig linux-3.0.9-vs2.3.2.1/arch/alpha/Kconfig
+--- linux-3.0.9/arch/alpha/Kconfig 2011-07-22 11:17:32.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/alpha/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -668,6 +668,8 @@ config DUMMY_CONSOLE
+ depends on VGA_HOSE
+ default y
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/alpha/kernel/entry.S linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/entry.S
+--- linux-3.0.9/arch/alpha/kernel/entry.S 2010-10-21 13:06:45.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/entry.S 2011-06-10 22:11:24.000000000 +0200
+@@ -860,24 +860,15 @@ sys_getxgid:
+ .globl sys_getxpid
+ .ent sys_getxpid
+ sys_getxpid:
++ lda $sp, -16($sp)
++ stq $26, 0($sp)
+ .prologue 0
+- ldq $2, TI_TASK($8)
+
+- /* See linux/kernel/timer.c sys_getppid for discussion
+- about this loop. */
+- ldq $3, TASK_GROUP_LEADER($2)
+- ldq $4, TASK_REAL_PARENT($3)
+- ldl $0, TASK_TGID($2)
+-1: ldl $1, TASK_TGID($4)
+-#ifdef CONFIG_SMP
+- mov $4, $5
+- mb
+- ldq $3, TASK_GROUP_LEADER($2)
+- ldq $4, TASK_REAL_PARENT($3)
+- cmpeq $4, $5, $5
+- beq $5, 1b
+-#endif
+- stq $1, 80($sp)
++ lda $16, 96($sp)
++ jsr $26, do_getxpid
++ ldq $26, 0($sp)
++
++ lda $sp, 16($sp)
+ ret
+ .end sys_getxpid
+
+diff -NurpP --minimal linux-3.0.9/arch/alpha/kernel/ptrace.c linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/ptrace.c
+--- linux-3.0.9/arch/alpha/kernel/ptrace.c 2011-01-05 21:48:40.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/ptrace.c 2011-06-10 22:11:24.000000000 +0200
+@@ -13,6 +13,7 @@
+ #include <linux/user.h>
+ #include <linux/security.h>
+ #include <linux/signal.h>
++#include <linux/vs_base.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+diff -NurpP --minimal linux-3.0.9/arch/alpha/kernel/systbls.S linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/systbls.S
+--- linux-3.0.9/arch/alpha/kernel/systbls.S 2011-07-22 11:17:32.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/systbls.S 2011-06-10 22:11:24.000000000 +0200
+@@ -446,7 +446,7 @@ sys_call_table:
+ .quad sys_stat64 /* 425 */
+ .quad sys_lstat64
+ .quad sys_fstat64
+- .quad sys_ni_syscall /* sys_vserver */
++ .quad sys_vserver /* sys_vserver */
+ .quad sys_ni_syscall /* sys_mbind */
+ .quad sys_ni_syscall /* sys_get_mempolicy */
+ .quad sys_ni_syscall /* sys_set_mempolicy */
+diff -NurpP --minimal linux-3.0.9/arch/alpha/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/traps.c
+--- linux-3.0.9/arch/alpha/kernel/traps.c 2010-10-21 13:06:46.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/alpha/kernel/traps.c 2011-06-10 22:11:24.000000000 +0200
+@@ -183,7 +183,8 @@ die_if_kernel(char * str, struct pt_regs
+ #ifdef CONFIG_SMP
+ printk("CPU %d ", hard_smp_processor_id());
+ #endif
+- printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err);
++ printk("%s(%d[#%u]): %s %ld\n", current->comm,
++ task_pid_nr(current), current->xid, str, err);
+ dik_show_regs(regs, r9_15);
+ add_taint(TAINT_DIE);
+ dik_show_trace((unsigned long *)(regs+1));
+diff -NurpP --minimal linux-3.0.9/arch/arm/Kconfig linux-3.0.9-vs2.3.2.1/arch/arm/Kconfig
+--- linux-3.0.9/arch/arm/Kconfig 2011-11-15 16:40:41.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/arm/Kconfig 2011-10-18 13:51:13.000000000 +0200
+@@ -2049,6 +2049,8 @@ source "fs/Kconfig"
+
+ source "arch/arm/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/arm/kernel/calls.S linux-3.0.9-vs2.3.2.1/arch/arm/kernel/calls.S
+--- linux-3.0.9/arch/arm/kernel/calls.S 2011-07-22 11:17:32.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/arm/kernel/calls.S 2011-06-10 22:11:24.000000000 +0200
+@@ -322,7 +322,7 @@
+ /* 310 */ CALL(sys_request_key)
+ CALL(sys_keyctl)
+ CALL(ABI(sys_semtimedop, sys_oabi_semtimedop))
+-/* vserver */ CALL(sys_ni_syscall)
++ CALL(sys_vserver)
+ CALL(sys_ioprio_set)
+ /* 315 */ CALL(sys_ioprio_get)
+ CALL(sys_inotify_init)
+diff -NurpP --minimal linux-3.0.9/arch/arm/kernel/process.c linux-3.0.9-vs2.3.2.1/arch/arm/kernel/process.c
+--- linux-3.0.9/arch/arm/kernel/process.c 2011-05-22 16:16:47.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/arm/kernel/process.c 2011-06-10 22:11:24.000000000 +0200
+@@ -315,7 +315,8 @@ void __show_regs(struct pt_regs *regs)
+ void show_regs(struct pt_regs * regs)
+ {
+ printk("\n");
+- printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
++ printk("Pid: %d[#%u], comm: %20s\n",
++ task_pid_nr(current), current->xid, current->comm);
+ __show_regs(regs);
+ __backtrace();
+ }
+diff -NurpP --minimal linux-3.0.9/arch/arm/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/arm/kernel/traps.c
+--- linux-3.0.9/arch/arm/kernel/traps.c 2011-07-22 11:17:32.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/arm/kernel/traps.c 2011-06-22 12:39:12.000000000 +0200
+@@ -242,8 +242,8 @@ static int __die(const char *str, int er
+
+ print_modules();
+ __show_regs(regs);
+- printk(KERN_EMERG "Process %.*s (pid: %d, stack limit = 0x%p)\n",
+- TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), thread + 1);
++ printk(KERN_EMERG "Process %.*s (pid: %d:#%u, stack limit = 0x%p)\n",
++ TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), tsk->xid, thread + 1);
+
+ if (!user_mode(regs) || in_interrupt()) {
+ dump_mem(KERN_EMERG, "Stack: ", regs->ARM_sp,
+diff -NurpP --minimal linux-3.0.9/arch/cris/Kconfig linux-3.0.9-vs2.3.2.1/arch/cris/Kconfig
+--- linux-3.0.9/arch/cris/Kconfig 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/cris/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -678,6 +678,8 @@ source "drivers/staging/Kconfig"
+
+ source "arch/cris/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/frv/kernel/kernel_thread.S linux-3.0.9-vs2.3.2.1/arch/frv/kernel/kernel_thread.S
+--- linux-3.0.9/arch/frv/kernel/kernel_thread.S 2008-12-25 00:26:37.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/frv/kernel/kernel_thread.S 2011-06-10 22:11:24.000000000 +0200
+@@ -37,7 +37,7 @@ kernel_thread:
+
+ # start by forking the current process, but with shared VM
+ setlos.p #__NR_clone,gr7 ; syscall number
+- ori gr10,#CLONE_VM,gr8 ; first syscall arg [clone_flags]
++ ori gr10,#CLONE_KT,gr8 ; first syscall arg [clone_flags]
+ sethi.p #0xe4e4,gr9 ; second syscall arg [newsp]
+ setlo #0xe4e4,gr9
+ setlos.p #0,gr10 ; third syscall arg [parent_tidptr]
+diff -NurpP --minimal linux-3.0.9/arch/h8300/Kconfig linux-3.0.9-vs2.3.2.1/arch/h8300/Kconfig
+--- linux-3.0.9/arch/h8300/Kconfig 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/h8300/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -213,6 +213,8 @@ source "fs/Kconfig"
+
+ source "arch/h8300/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/ia64/Kconfig linux-3.0.9-vs2.3.2.1/arch/ia64/Kconfig
+--- linux-3.0.9/arch/ia64/Kconfig 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -671,6 +671,8 @@ source "fs/Kconfig"
+
+ source "arch/ia64/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/ia64/include/asm/tlb.h linux-3.0.9-vs2.3.2.1/arch/ia64/include/asm/tlb.h
+--- linux-3.0.9/arch/ia64/include/asm/tlb.h 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/include/asm/tlb.h 2011-06-10 22:11:24.000000000 +0200
+@@ -40,6 +40,7 @@
+ #include <linux/mm.h>
+ #include <linux/pagemap.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgalloc.h>
+ #include <asm/processor.h>
+diff -NurpP --minimal linux-3.0.9/arch/ia64/kernel/entry.S linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/entry.S
+--- linux-3.0.9/arch/ia64/kernel/entry.S 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/entry.S 2011-06-10 22:11:24.000000000 +0200
+@@ -1714,7 +1714,7 @@ sys_call_table:
+ data8 sys_mq_notify
+ data8 sys_mq_getsetattr
+ data8 sys_kexec_load
+- data8 sys_ni_syscall // reserved for vserver
++ data8 sys_vserver
+ data8 sys_waitid // 1270
+ data8 sys_add_key
+ data8 sys_request_key
+diff -NurpP --minimal linux-3.0.9/arch/ia64/kernel/perfmon.c linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/perfmon.c
+--- linux-3.0.9/arch/ia64/kernel/perfmon.c 2011-03-15 18:06:39.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/perfmon.c 2011-06-10 22:11:24.000000000 +0200
+@@ -42,6 +42,7 @@
+ #include <linux/completion.h>
+ #include <linux/tracehook.h>
+ #include <linux/slab.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/errno.h>
+ #include <asm/intrinsics.h>
+diff -NurpP --minimal linux-3.0.9/arch/ia64/kernel/process.c linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/process.c
+--- linux-3.0.9/arch/ia64/kernel/process.c 2011-03-15 18:06:39.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/process.c 2011-06-10 22:11:24.000000000 +0200
+@@ -109,8 +109,8 @@ show_regs (struct pt_regs *regs)
+ unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
+
+ print_modules();
+- printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current),
+- smp_processor_id(), current->comm);
++ printk("\nPid: %d[#%u], CPU %d, comm: %20s\n", task_pid_nr(current),
++ current->xid, smp_processor_id(), current->comm);
+ printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s (%s)\n",
+ regs->cr_ipsr, regs->cr_ifs, ip, print_tainted(),
+ init_utsname()->release);
+diff -NurpP --minimal linux-3.0.9/arch/ia64/kernel/ptrace.c linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/ptrace.c
+--- linux-3.0.9/arch/ia64/kernel/ptrace.c 2011-01-05 21:48:59.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/ptrace.c 2011-06-10 22:11:24.000000000 +0200
+@@ -21,6 +21,7 @@
+ #include <linux/regset.h>
+ #include <linux/elf.h>
+ #include <linux/tracehook.h>
++#include <linux/vs_base.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+diff -NurpP --minimal linux-3.0.9/arch/ia64/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/traps.c
+--- linux-3.0.9/arch/ia64/kernel/traps.c 2010-07-07 18:31:01.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/kernel/traps.c 2011-06-10 22:11:24.000000000 +0200
+@@ -59,8 +59,9 @@ die (const char *str, struct pt_regs *re
+ put_cpu();
+
+ if (++die.lock_owner_depth < 3) {
+- printk("%s[%d]: %s %ld [%d]\n",
+- current->comm, task_pid_nr(current), str, err, ++die_counter);
++ printk("%s[%d[#%u]]: %s %ld [%d]\n",
++ current->comm, task_pid_nr(current), current->xid,
++ str, err, ++die_counter);
+ if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV)
+ != NOTIFY_STOP)
+ show_regs(regs);
+@@ -323,8 +324,9 @@ handle_fpu_swa (int fp_fault, struct pt_
+ if ((last.count & 15) < 5 && (ia64_fetchadd(1, &last.count, acq) & 15) < 5) {
+ last.time = current_jiffies + 5 * HZ;
+ printk(KERN_WARNING
+- "%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n",
+- current->comm, task_pid_nr(current), regs->cr_iip + ia64_psr(regs)->ri, isr);
++ "%s(%d[#%u]): floating-point assist fault at ip %016lx, isr %016lx\n",
++ current->comm, task_pid_nr(current), current->xid,
++ regs->cr_iip + ia64_psr(regs)->ri, isr);
+ }
+ }
+ }
+diff -NurpP --minimal linux-3.0.9/arch/ia64/mm/fault.c linux-3.0.9-vs2.3.2.1/arch/ia64/mm/fault.c
+--- linux-3.0.9/arch/ia64/mm/fault.c 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/ia64/mm/fault.c 2011-06-10 22:28:23.000000000 +0200
+@@ -11,6 +11,7 @@
+ #include <linux/kprobes.h>
+ #include <linux/kdebug.h>
+ #include <linux/prefetch.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+diff -NurpP --minimal linux-3.0.9/arch/m32r/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/m32r/kernel/traps.c
+--- linux-3.0.9/arch/m32r/kernel/traps.c 2009-12-03 20:01:57.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/m32r/kernel/traps.c 2011-06-10 22:11:24.000000000 +0200
+@@ -196,8 +196,9 @@ static void show_registers(struct pt_reg
+ } else {
+ printk("SPI: %08lx\n", sp);
+ }
+- printk("Process %s (pid: %d, process nr: %d, stackpage=%08lx)",
+- current->comm, task_pid_nr(current), 0xffff & i, 4096+(unsigned long)current);
++ printk("Process %s (pid: %d[#%u], process nr: %d, stackpage=%08lx)",
++ current->comm, task_pid_nr(current), current->xid,
++ 0xffff & i, 4096+(unsigned long)current);
+
+ /*
+ * When in-kernel, we also print out the stack and code at the
+diff -NurpP --minimal linux-3.0.9/arch/m68k/Kconfig linux-3.0.9-vs2.3.2.1/arch/m68k/Kconfig
+--- linux-3.0.9/arch/m68k/Kconfig 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/m68k/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -241,6 +241,8 @@ source "fs/Kconfig"
+
+ source "arch/m68k/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/mips/Kconfig linux-3.0.9-vs2.3.2.1/arch/mips/Kconfig
+--- linux-3.0.9/arch/mips/Kconfig 2011-07-22 11:17:35.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -2485,6 +2485,8 @@ source "fs/Kconfig"
+
+ source "arch/mips/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/ptrace.c linux-3.0.9-vs2.3.2.1/arch/mips/kernel/ptrace.c
+--- linux-3.0.9/arch/mips/kernel/ptrace.c 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/ptrace.c 2011-06-10 22:11:24.000000000 +0200
+@@ -25,6 +25,7 @@
+ #include <linux/security.h>
+ #include <linux/audit.h>
+ #include <linux/seccomp.h>
++#include <linux/vs_base.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/cpu.h>
+@@ -263,6 +264,9 @@ long arch_ptrace(struct task_struct *chi
+ void __user *datavp = (void __user *) data;
+ unsigned long __user *datalp = (void __user *) data;
+
++ if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
++ goto out;
++
+ switch (request) {
+ /* when I and D space are separate, these will need to be fixed. */
+ case PTRACE_PEEKTEXT: /* read word at location addr. */
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/scall32-o32.S linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall32-o32.S
+--- linux-3.0.9/arch/mips/kernel/scall32-o32.S 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall32-o32.S 2011-06-10 22:11:24.000000000 +0200
+@@ -523,7 +523,7 @@ einval: li v0, -ENOSYS
+ sys sys_mq_timedreceive 5
+ sys sys_mq_notify 2 /* 4275 */
+ sys sys_mq_getsetattr 3
+- sys sys_ni_syscall 0 /* sys_vserver */
++ sys sys_vserver 3
+ sys sys_waitid 5
+ sys sys_ni_syscall 0 /* available, was setaltroot */
+ sys sys_add_key 5 /* 4280 */
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/scall64-64.S linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-64.S
+--- linux-3.0.9/arch/mips/kernel/scall64-64.S 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-64.S 2011-06-10 22:11:24.000000000 +0200
+@@ -362,7 +362,7 @@ sys_call_table:
+ PTR sys_mq_timedreceive
+ PTR sys_mq_notify
+ PTR sys_mq_getsetattr /* 5235 */
+- PTR sys_ni_syscall /* sys_vserver */
++ PTR sys_vserver
+ PTR sys_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/scall64-n32.S linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-n32.S
+--- linux-3.0.9/arch/mips/kernel/scall64-n32.S 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-n32.S 2011-06-10 22:11:24.000000000 +0200
+@@ -361,7 +361,7 @@ EXPORT(sysn32_call_table)
+ PTR compat_sys_mq_timedreceive
+ PTR compat_sys_mq_notify
+ PTR compat_sys_mq_getsetattr
+- PTR sys_ni_syscall /* 6240, sys_vserver */
++ PTR sys32_vserver /* 6240 */
+ PTR compat_sys_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/scall64-o32.S linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-o32.S
+--- linux-3.0.9/arch/mips/kernel/scall64-o32.S 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/scall64-o32.S 2011-06-10 22:11:24.000000000 +0200
+@@ -480,7 +480,7 @@ sys_call_table:
+ PTR compat_sys_mq_timedreceive
+ PTR compat_sys_mq_notify /* 4275 */
+ PTR compat_sys_mq_getsetattr
+- PTR sys_ni_syscall /* sys_vserver */
++ PTR sys32_vserver
+ PTR sys_32_waitid
+ PTR sys_ni_syscall /* available, was setaltroot */
+ PTR sys_add_key /* 4280 */
+diff -NurpP --minimal linux-3.0.9/arch/mips/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/mips/kernel/traps.c
+--- linux-3.0.9/arch/mips/kernel/traps.c 2011-05-22 16:17:00.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/mips/kernel/traps.c 2011-06-10 22:11:24.000000000 +0200
+@@ -343,9 +343,10 @@ void show_registers(struct pt_regs *regs
+
+ __show_regs(regs);
+ print_modules();
+- printk("Process %s (pid: %d, threadinfo=%p, task=%p, tls=%0*lx)\n",
+- current->comm, current->pid, current_thread_info(), current,
+- field, current_thread_info()->tp_value);
++ printk("Process %s (pid: %d:#%u, threadinfo=%p, task=%p, tls=%0*lx)\n",
++ current->comm, task_pid_nr(current), current->xid,
++ current_thread_info(), current,
++ field, current_thread_info()->tp_value);
+ if (cpu_has_userlocal) {
+ unsigned long tls;
+
+diff -NurpP --minimal linux-3.0.9/arch/parisc/Kconfig linux-3.0.9-vs2.3.2.1/arch/parisc/Kconfig
+--- linux-3.0.9/arch/parisc/Kconfig 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/parisc/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -279,6 +279,8 @@ source "fs/Kconfig"
+
+ source "arch/parisc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/parisc/kernel/syscall_table.S linux-3.0.9-vs2.3.2.1/arch/parisc/kernel/syscall_table.S
+--- linux-3.0.9/arch/parisc/kernel/syscall_table.S 2011-11-15 16:40:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/parisc/kernel/syscall_table.S 2011-08-29 03:45:07.000000000 +0200
+@@ -361,7 +361,7 @@
+ ENTRY_COMP(mbind) /* 260 */
+ ENTRY_COMP(get_mempolicy)
+ ENTRY_COMP(set_mempolicy)
+- ENTRY_SAME(ni_syscall) /* 263: reserved for vserver */
++ ENTRY_DIFF(vserver)
+ ENTRY_SAME(add_key)
+ ENTRY_SAME(request_key) /* 265 */
+ ENTRY_SAME(keyctl)
+diff -NurpP --minimal linux-3.0.9/arch/parisc/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/parisc/kernel/traps.c
+--- linux-3.0.9/arch/parisc/kernel/traps.c 2009-09-10 15:25:40.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/parisc/kernel/traps.c 2011-06-10 22:11:24.000000000 +0200
+@@ -236,8 +236,9 @@ void die_if_kernel(char *str, struct pt_
+ if (err == 0)
+ return; /* STFU */
+
+- printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
+- current->comm, task_pid_nr(current), str, err, regs->iaoq[0]);
++ printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld) at " RFMT "\n",
++ current->comm, task_pid_nr(current), current->xid,
++ str, err, regs->iaoq[0]);
+ #ifdef PRINT_USER_FAULTS
+ /* XXX for debugging only */
+ show_regs(regs);
+@@ -270,8 +271,8 @@ void die_if_kernel(char *str, struct pt_
+ pdc_console_restart();
+
+ if (err)
+- printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
+- current->comm, task_pid_nr(current), str, err);
++ printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld)\n",
++ current->comm, task_pid_nr(current), current->xid, str, err);
+
+ /* Wot's wrong wif bein' racy? */
+ if (current->thread.flags & PARISC_KERNEL_DEATH) {
+diff -NurpP --minimal linux-3.0.9/arch/parisc/mm/fault.c linux-3.0.9-vs2.3.2.1/arch/parisc/mm/fault.c
+--- linux-3.0.9/arch/parisc/mm/fault.c 2010-08-02 16:52:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/parisc/mm/fault.c 2011-06-10 22:11:24.000000000 +0200
+@@ -237,8 +237,9 @@ bad_area:
+
+ #ifdef PRINT_USER_FAULTS
+ printk(KERN_DEBUG "\n");
+- printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
+- task_pid_nr(tsk), tsk->comm, code, address);
++ printk(KERN_DEBUG "do_page_fault() pid=%d:#%u "
++ "command='%s' type=%lu address=0x%08lx\n",
++ task_pid_nr(tsk), tsk->xid, tsk->comm, code, address);
+ if (vma) {
+ printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
+ vma->vm_start, vma->vm_end);
+diff -NurpP --minimal linux-3.0.9/arch/powerpc/Kconfig linux-3.0.9-vs2.3.2.1/arch/powerpc/Kconfig
+--- linux-3.0.9/arch/powerpc/Kconfig 2011-07-22 11:17:36.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/powerpc/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -978,6 +978,8 @@ source "lib/Kconfig"
+
+ source "arch/powerpc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ config KEYS_COMPAT
+diff -NurpP --minimal linux-3.0.9/arch/powerpc/include/asm/unistd.h linux-3.0.9-vs2.3.2.1/arch/powerpc/include/asm/unistd.h
+--- linux-3.0.9/arch/powerpc/include/asm/unistd.h 2011-07-22 11:17:40.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/powerpc/include/asm/unistd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -275,7 +275,7 @@
+ #endif
+ #define __NR_rtas 255
+ #define __NR_sys_debug_setcontext 256
+-/* Number 257 is reserved for vserver */
++#define __NR_vserver 257
+ #define __NR_migrate_pages 258
+ #define __NR_mbind 259
+ #define __NR_get_mempolicy 260
+diff -NurpP --minimal linux-3.0.9/arch/powerpc/kernel/process.c linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/process.c
+--- linux-3.0.9/arch/powerpc/kernel/process.c 2011-07-22 11:17:40.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/process.c 2011-06-10 22:11:24.000000000 +0200
+@@ -656,8 +656,9 @@ void show_regs(struct pt_regs * regs)
+ #else
+ printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
+ #endif
+- printk("TASK = %p[%d] '%s' THREAD: %p",
+- current, task_pid_nr(current), current->comm, task_thread_info(current));
++ printk("TASK = %p[%d,#%u] '%s' THREAD: %p",
++ current, task_pid_nr(current), current->xid,
++ current->comm, task_thread_info(current));
+
+ #ifdef CONFIG_SMP
+ printk(" CPU: %d", raw_smp_processor_id());
+diff -NurpP --minimal linux-3.0.9/arch/powerpc/kernel/traps.c linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/traps.c
+--- linux-3.0.9/arch/powerpc/kernel/traps.c 2011-07-22 11:17:40.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/traps.c 2011-07-19 00:44:39.000000000 +0200
+@@ -1075,8 +1075,9 @@ void nonrecoverable_exception(struct pt_
+
+ void trace_syscall(struct pt_regs *regs)
+ {
+- printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n",
+- current, task_pid_nr(current), regs->nip, regs->link, regs->gpr[0],
++ printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld %s\n",
++ current, task_pid_nr(current), current->xid,
++ regs->nip, regs->link, regs->gpr[0],
+ regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted());
+ }
+
+diff -NurpP --minimal linux-3.0.9/arch/powerpc/kernel/vdso.c linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/vdso.c
+--- linux-3.0.9/arch/powerpc/kernel/vdso.c 2011-05-22 16:17:02.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/powerpc/kernel/vdso.c 2011-06-10 22:11:24.000000000 +0200
+@@ -23,6 +23,7 @@
+ #include <linux/security.h>
+ #include <linux/bootmem.h>
+ #include <linux/memblock.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/system.h>
+diff -NurpP --minimal linux-3.0.9/arch/s390/Kconfig linux-3.0.9-vs2.3.2.1/arch/s390/Kconfig
+--- linux-3.0.9/arch/s390/Kconfig 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/s390/Kconfig 2011-07-01 11:35:34.000000000 +0200
+@@ -628,6 +628,8 @@ source "fs/Kconfig"
+
+ source "arch/s390/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/s390/include/asm/tlb.h linux-3.0.9-vs2.3.2.1/arch/s390/include/asm/tlb.h
+--- linux-3.0.9/arch/s390/include/asm/tlb.h 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/s390/include/asm/tlb.h 2011-06-15 02:40:14.000000000 +0200
+@@ -24,6 +24,8 @@
+ #include <linux/mm.h>
+ #include <linux/pagemap.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
++
+ #include <asm/processor.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+diff -NurpP --minimal linux-3.0.9/arch/s390/include/asm/unistd.h linux-3.0.9-vs2.3.2.1/arch/s390/include/asm/unistd.h
+--- linux-3.0.9/arch/s390/include/asm/unistd.h 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/s390/include/asm/unistd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -202,7 +202,7 @@
+ #define __NR_clock_gettime (__NR_timer_create+6)
+ #define __NR_clock_getres (__NR_timer_create+7)
+ #define __NR_clock_nanosleep (__NR_timer_create+8)
+-/* Number 263 is reserved for vserver */
++#define __NR_vserver 263
+ #define __NR_statfs64 265
+ #define __NR_fstatfs64 266
+ #define __NR_remap_file_pages 267
+diff -NurpP --minimal linux-3.0.9/arch/s390/kernel/ptrace.c linux-3.0.9-vs2.3.2.1/arch/s390/kernel/ptrace.c
+--- linux-3.0.9/arch/s390/kernel/ptrace.c 2011-11-15 16:40:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/s390/kernel/ptrace.c 2011-11-15 17:37:04.000000000 +0100
+@@ -20,6 +20,7 @@
+ #include <linux/regset.h>
+ #include <linux/tracehook.h>
+ #include <linux/seccomp.h>
++#include <linux/vs_base.h>
+ #include <trace/syscall.h>
+ #include <asm/compat.h>
+ #include <asm/segment.h>
+diff -NurpP --minimal linux-3.0.9/arch/s390/kernel/syscalls.S linux-3.0.9-vs2.3.2.1/arch/s390/kernel/syscalls.S
+--- linux-3.0.9/arch/s390/kernel/syscalls.S 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/s390/kernel/syscalls.S 2011-06-10 22:11:24.000000000 +0200
+@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett
+ SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper) /* 260 */
+ SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper)
+ SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper)
+-NI_SYSCALL /* reserved for vserver */
++SYSCALL(sys_vserver,sys_vserver,sys32_vserver)
+ SYSCALL(sys_s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper)
+ SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper)
+ SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper)
+diff -NurpP --minimal linux-3.0.9/arch/sh/Kconfig linux-3.0.9-vs2.3.2.1/arch/sh/Kconfig
+--- linux-3.0.9/arch/sh/Kconfig 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sh/Kconfig 2011-07-19 00:44:39.000000000 +0200
+@@ -893,6 +893,8 @@ source "fs/Kconfig"
+
+ source "arch/sh/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/sh/kernel/irq.c linux-3.0.9-vs2.3.2.1/arch/sh/kernel/irq.c
+--- linux-3.0.9/arch/sh/kernel/irq.c 2011-07-22 11:17:41.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sh/kernel/irq.c 2011-07-19 00:45:06.000000000 +0200
+@@ -14,6 +14,7 @@
+ #include <linux/ftrace.h>
+ #include <linux/delay.h>
+ #include <linux/ratelimit.h>
++// #include <linux/vs_context.h>
+ #include <asm/processor.h>
+ #include <asm/machvec.h>
+ #include <asm/uaccess.h>
+diff -NurpP --minimal linux-3.0.9/arch/sh/kernel/vsyscall/vsyscall.c linux-3.0.9-vs2.3.2.1/arch/sh/kernel/vsyscall/vsyscall.c
+--- linux-3.0.9/arch/sh/kernel/vsyscall/vsyscall.c 2011-05-22 16:17:07.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sh/kernel/vsyscall/vsyscall.c 2011-06-10 22:11:24.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <linux/elf.h>
+ #include <linux/sched.h>
+ #include <linux/err.h>
++#include <linux/vs_memory.h>
+
+ /*
+ * Should the kernel map a VDSO page into processes and pass its
+diff -NurpP --minimal linux-3.0.9/arch/sparc/Kconfig linux-3.0.9-vs2.3.2.1/arch/sparc/Kconfig
+--- linux-3.0.9/arch/sparc/Kconfig 2011-11-15 16:40:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/sparc/Kconfig 2011-10-18 13:51:13.000000000 +0200
+@@ -602,6 +602,8 @@ source "fs/Kconfig"
+
+ source "arch/sparc/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/sparc/include/asm/tlb_64.h linux-3.0.9-vs2.3.2.1/arch/sparc/include/asm/tlb_64.h
+--- linux-3.0.9/arch/sparc/include/asm/tlb_64.h 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sparc/include/asm/tlb_64.h 2011-06-10 22:11:24.000000000 +0200
+@@ -3,6 +3,7 @@
+
+ #include <linux/swap.h>
+ #include <linux/pagemap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+ #include <asm/mmu_context.h>
+diff -NurpP --minimal linux-3.0.9/arch/sparc/include/asm/unistd.h linux-3.0.9-vs2.3.2.1/arch/sparc/include/asm/unistd.h
+--- linux-3.0.9/arch/sparc/include/asm/unistd.h 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sparc/include/asm/unistd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -335,7 +335,7 @@
+ #define __NR_timer_getoverrun 264
+ #define __NR_timer_delete 265
+ #define __NR_timer_create 266
+-/* #define __NR_vserver 267 Reserved for VSERVER */
++#define __NR_vserver 267
+ #define __NR_io_setup 268
+ #define __NR_io_destroy 269
+ #define __NR_io_submit 270
+diff -NurpP --minimal linux-3.0.9/arch/sparc/kernel/systbls_32.S linux-3.0.9-vs2.3.2.1/arch/sparc/kernel/systbls_32.S
+--- linux-3.0.9/arch/sparc/kernel/systbls_32.S 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sparc/kernel/systbls_32.S 2011-06-10 22:11:24.000000000 +0200
+@@ -70,7 +70,7 @@ sys_call_table:
+ /*250*/ .long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ /*255*/ .long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+-/*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
++/*265*/ .long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/ .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ /*275*/ .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/ .long sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+diff -NurpP --minimal linux-3.0.9/arch/sparc/kernel/systbls_64.S linux-3.0.9-vs2.3.2.1/arch/sparc/kernel/systbls_64.S
+--- linux-3.0.9/arch/sparc/kernel/systbls_64.S 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/sparc/kernel/systbls_64.S 2011-06-10 22:11:24.000000000 +0200
+@@ -71,7 +71,7 @@ sys_call_table32:
+ /*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
+ .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
+ /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
+- .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
++ .word sys_timer_delete, compat_sys_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy
+ /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
+ .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
+ /*280*/ .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
+@@ -148,7 +148,7 @@ sys_call_table:
+ /*250*/ .word sys_64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ .word sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+- .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
++ .word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/ .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/ .word sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+diff -NurpP --minimal linux-3.0.9/arch/um/Kconfig.rest linux-3.0.9-vs2.3.2.1/arch/um/Kconfig.rest
+--- linux-3.0.9/arch/um/Kconfig.rest 2009-06-11 17:12:19.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/um/Kconfig.rest 2011-06-10 22:11:24.000000000 +0200
+@@ -18,6 +18,8 @@ source "drivers/connector/Kconfig"
+
+ source "fs/Kconfig"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/um/include/asm/tlb.h linux-3.0.9-vs2.3.2.1/arch/um/include/asm/tlb.h
+--- linux-3.0.9/arch/um/include/asm/tlb.h 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/um/include/asm/tlb.h 2011-06-10 22:11:24.000000000 +0200
+@@ -3,6 +3,7 @@
+
+ #include <linux/pagemap.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ #include <asm/percpu.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+diff -NurpP --minimal linux-3.0.9/arch/um/include/shared/kern_constants.h linux-3.0.9-vs2.3.2.1/arch/um/include/shared/kern_constants.h
+--- linux-3.0.9/arch/um/include/shared/kern_constants.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/um/include/shared/kern_constants.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1 @@
++#include "../../../../include/generated/asm-offsets.h"
+diff -NurpP --minimal linux-3.0.9/arch/um/include/shared/user_constants.h linux-3.0.9-vs2.3.2.1/arch/um/include/shared/user_constants.h
+--- linux-3.0.9/arch/um/include/shared/user_constants.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/arch/um/include/shared/user_constants.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,40 @@
++/*
++ * DO NOT MODIFY.
++ *
++ * This file was generated by arch/um/Makefile
++ *
++ */
++
++#define HOST_SC_CR2 176 /* offsetof(struct sigcontext, cr2) # */
++#define HOST_SC_ERR 152 /* offsetof(struct sigcontext, err) # */
++#define HOST_SC_TRAPNO 160 /* offsetof(struct sigcontext, trapno) # */
++#define HOST_FP_SIZE 64 /* sizeof(struct _fpstate) / sizeof(unsigned long) # */
++#define HOST_RBX 5 /* RBX # */
++#define HOST_RCX 11 /* RCX # */
++#define HOST_RDI 14 /* RDI # */
++#define HOST_RSI 13 /* RSI # */
++#define HOST_RDX 12 /* RDX # */
++#define HOST_RBP 4 /* RBP # */
++#define HOST_RAX 10 /* RAX # */
++#define HOST_R8 9 /* R8 # */
++#define HOST_R9 8 /* R9 # */
++#define HOST_R10 7 /* R10 # */
++#define HOST_R11 6 /* R11 # */
++#define HOST_R12 3 /* R12 # */
++#define HOST_R13 2 /* R13 # */
++#define HOST_R14 1 /* R14 # */
++#define HOST_R15 0 /* R15 # */
++#define HOST_ORIG_RAX 15 /* ORIG_RAX # */
++#define HOST_CS 17 /* CS # */
++#define HOST_SS 20 /* SS # */
++#define HOST_EFLAGS 18 /* EFLAGS # */
++#define HOST_IP 16 /* RIP # */
++#define HOST_SP 19 /* RSP # */
++#define UM_FRAME_SIZE 216 /* sizeof(struct user_regs_struct) # */
++#define UM_POLLIN 1 /* POLLIN # */
++#define UM_POLLPRI 2 /* POLLPRI # */
++#define UM_POLLOUT 4 /* POLLOUT # */
++#define UM_PROT_READ 1 /* PROT_READ # */
++#define UM_PROT_WRITE 2 /* PROT_WRITE # */
++#define UM_PROT_EXEC 4 /* PROT_EXEC # */
++
+diff -NurpP --minimal linux-3.0.9/arch/x86/Kconfig linux-3.0.9-vs2.3.2.1/arch/x86/Kconfig
+--- linux-3.0.9/arch/x86/Kconfig 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/x86/Kconfig 2011-07-22 11:20:39.000000000 +0200
+@@ -2159,6 +2159,8 @@ source "fs/Kconfig"
+
+ source "arch/x86/Kconfig.debug"
+
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+
+ source "crypto/Kconfig"
+diff -NurpP --minimal linux-3.0.9/arch/x86/ia32/ia32entry.S linux-3.0.9-vs2.3.2.1/arch/x86/ia32/ia32entry.S
+--- linux-3.0.9/arch/x86/ia32/ia32entry.S 2011-07-22 11:17:42.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/x86/ia32/ia32entry.S 2011-06-10 22:11:24.000000000 +0200
+@@ -776,7 +776,7 @@ ia32_sys_call_table:
+ .quad sys_tgkill /* 270 */
+ .quad compat_sys_utimes
+ .quad sys32_fadvise64_64
+- .quad quiet_ni_syscall /* sys_vserver */
++ .quad sys32_vserver
+ .quad sys_mbind
+ .quad compat_sys_get_mempolicy /* 275 */
+ .quad sys_set_mempolicy
+diff -NurpP --minimal linux-3.0.9/arch/x86/include/asm/unistd_64.h linux-3.0.9-vs2.3.2.1/arch/x86/include/asm/unistd_64.h
+--- linux-3.0.9/arch/x86/include/asm/unistd_64.h 2011-07-22 11:17:43.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/x86/include/asm/unistd_64.h 2011-06-10 22:11:24.000000000 +0200
+@@ -535,7 +535,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill)
+ #define __NR_utimes 235
+ __SYSCALL(__NR_utimes, sys_utimes)
+ #define __NR_vserver 236
+-__SYSCALL(__NR_vserver, sys_ni_syscall)
++__SYSCALL(__NR_vserver, sys_vserver)
+ #define __NR_mbind 237
+ __SYSCALL(__NR_mbind, sys_mbind)
+ #define __NR_set_mempolicy 238
+diff -NurpP --minimal linux-3.0.9/arch/x86/kernel/syscall_table_32.S linux-3.0.9-vs2.3.2.1/arch/x86/kernel/syscall_table_32.S
+--- linux-3.0.9/arch/x86/kernel/syscall_table_32.S 2011-07-22 11:17:43.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/arch/x86/kernel/syscall_table_32.S 2011-06-10 22:11:24.000000000 +0200
+@@ -272,7 +272,7 @@ ENTRY(sys_call_table)
+ .long sys_tgkill /* 270 */
+ .long sys_utimes
+ .long sys_fadvise64_64
+- .long sys_ni_syscall /* sys_vserver */
++ .long sys_vserver
+ .long sys_mbind
+ .long sys_get_mempolicy
+ .long sys_set_mempolicy
+diff -NurpP --minimal linux-3.0.9/block/genhd.c linux-3.0.9-vs2.3.2.1/block/genhd.c
+--- linux-3.0.9/block/genhd.c 2011-11-15 16:40:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/block/genhd.c 2011-11-15 17:37:04.000000000 +0100
+@@ -1162,17 +1162,17 @@ static int diskstats_show(struct seq_fil
+ cpu = part_stat_lock();
+ part_round_stats(cpu, hd);
+ part_stat_unlock();
+- seq_printf(seqf, "%4d %7d %s %lu %lu %llu "
+- "%u %lu %lu %llu %u %u %u %u\n",
++ seq_printf(seqf, "%4d %7d %s %lu %lu %lu "
++ "%u %lu %lu %lu %u %u %u %u\n",
+ MAJOR(part_devt(hd)), MINOR(part_devt(hd)),
+ disk_name(gp, hd->partno, buf),
+ part_stat_read(hd, ios[READ]),
+ part_stat_read(hd, merges[READ]),
+- (unsigned long long)part_stat_read(hd, sectors[READ]),
++ part_stat_read(hd, sectors[READ]),
+ jiffies_to_msecs(part_stat_read(hd, ticks[READ])),
+ part_stat_read(hd, ios[WRITE]),
+ part_stat_read(hd, merges[WRITE]),
+- (unsigned long long)part_stat_read(hd, sectors[WRITE]),
++ part_stat_read(hd, sectors[WRITE]),
+ jiffies_to_msecs(part_stat_read(hd, ticks[WRITE])),
+ part_in_flight(hd),
+ jiffies_to_msecs(part_stat_read(hd, io_ticks)),
+diff -NurpP --minimal linux-3.0.9/drivers/block/Kconfig linux-3.0.9-vs2.3.2.1/drivers/block/Kconfig
+--- linux-3.0.9/drivers/block/Kconfig 2011-07-22 11:17:44.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/block/Kconfig 2011-06-10 22:11:24.000000000 +0200
+@@ -273,6 +273,13 @@ config BLK_DEV_CRYPTOLOOP
+
+ source "drivers/block/drbd/Kconfig"
+
++config BLK_DEV_VROOT
++ tristate "Virtual Root device support"
++ depends on QUOTACTL
++ ---help---
++ Saying Y here will allow you to use quota/fs ioctls on a shared
++ partition within a virtual server without compromising security.
++
+ config BLK_DEV_NBD
+ tristate "Network block device support"
+ depends on NET
+diff -NurpP --minimal linux-3.0.9/drivers/block/Makefile linux-3.0.9-vs2.3.2.1/drivers/block/Makefile
+--- linux-3.0.9/drivers/block/Makefile 2011-07-22 11:17:44.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/block/Makefile 2011-06-10 22:11:24.000000000 +0200
+@@ -34,6 +34,7 @@ obj-$(CONFIG_VIODASD) += viodasd.o
+ obj-$(CONFIG_BLK_DEV_SX8) += sx8.o
+ obj-$(CONFIG_BLK_DEV_UB) += ub.o
+ obj-$(CONFIG_BLK_DEV_HD) += hd.o
++obj-$(CONFIG_BLK_DEV_VROOT) += vroot.o
+
+ obj-$(CONFIG_XEN_BLKDEV_FRONTEND) += xen-blkfront.o
+ obj-$(CONFIG_XEN_BLKDEV_BACKEND) += xen-blkback/
+diff -NurpP --minimal linux-3.0.9/drivers/block/loop.c linux-3.0.9-vs2.3.2.1/drivers/block/loop.c
+--- linux-3.0.9/drivers/block/loop.c 2011-11-15 16:40:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/drivers/block/loop.c 2011-08-31 19:37:44.000000000 +0200
+@@ -75,6 +75,7 @@
+ #include <linux/kthread.h>
+ #include <linux/splice.h>
+ #include <linux/sysfs.h>
++#include <linux/vs_context.h>
+
+ #include <asm/uaccess.h>
+
+@@ -891,6 +892,7 @@ static int loop_set_fd(struct loop_devic
+ lo->lo_blocksize = lo_blocksize;
+ lo->lo_device = bdev;
+ lo->lo_flags = lo_flags;
++ lo->lo_xid = vx_current_xid();
+ lo->lo_backing_file = file;
+ lo->transfer = transfer_none;
+ lo->ioctl = NULL;
+@@ -1021,6 +1023,7 @@ static int loop_clr_fd(struct loop_devic
+ lo->lo_encrypt_key_size = 0;
+ lo->lo_flags = 0;
+ lo->lo_thread = NULL;
++ lo->lo_xid = 0;
+ memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
+ memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
+ memset(lo->lo_file_name, 0, LO_NAME_SIZE);
+@@ -1059,7 +1062,7 @@ loop_set_status(struct loop_device *lo,
+
+ if (lo->lo_encrypt_key_size &&
+ lo->lo_key_owner != uid &&
+- !capable(CAP_SYS_ADMIN))
++ !vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP))
+ return -EPERM;
+ if (lo->lo_state != Lo_bound)
+ return -ENXIO;
+@@ -1143,7 +1146,8 @@ loop_get_status(struct loop_device *lo,
+ memcpy(info->lo_crypt_name, lo->lo_crypt_name, LO_NAME_SIZE);
+ info->lo_encrypt_type =
+ lo->lo_encryption ? lo->lo_encryption->number : 0;
+- if (lo->lo_encrypt_key_size && capable(CAP_SYS_ADMIN)) {
++ if (lo->lo_encrypt_key_size &&
++ vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP)) {
+ info->lo_encrypt_key_size = lo->lo_encrypt_key_size;
+ memcpy(info->lo_encrypt_key, lo->lo_encrypt_key,
+ lo->lo_encrypt_key_size);
+@@ -1489,6 +1493,9 @@ static int lo_open(struct block_device *
+ {
+ struct loop_device *lo = bdev->bd_disk->private_data;
+
++ if (!vx_check(lo->lo_xid, VS_IDENT|VS_HOSTID|VS_ADMIN_P))
++ return -EACCES;
++
+ mutex_lock(&lo->lo_ctl_mutex);
+ lo->lo_refcnt++;
+ mutex_unlock(&lo->lo_ctl_mutex);
+diff -NurpP --minimal linux-3.0.9/drivers/block/vroot.c linux-3.0.9-vs2.3.2.1/drivers/block/vroot.c
+--- linux-3.0.9/drivers/block/vroot.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/drivers/block/vroot.c 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,292 @@
++/*
++ * linux/drivers/block/vroot.c
++ *
++ * written by Herbert Ptzl, 9/11/2002
++ * ported to 2.6.10 by Herbert Ptzl, 30/12/2004
++ *
++ * based on the loop.c code by Theodore Ts'o.
++ *
++ * Copyright (C) 2002-2007 by Herbert Ptzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/file.h>
++#include <linux/major.h>
++#include <linux/blkdev.h>
++#include <linux/slab.h>
++
++#include <linux/vroot.h>
++#include <linux/vs_context.h>
++
++
++static int max_vroot = 8;
++
++static struct vroot_device *vroot_dev;
++static struct gendisk **disks;
++
++
++static int vroot_set_dev(
++ struct vroot_device *vr,
++ struct block_device *bdev,
++ unsigned int arg)
++{
++ struct block_device *real_bdev;
++ struct file *file;
++ struct inode *inode;
++ int error;
++
++ error = -EBUSY;
++ if (vr->vr_state != Vr_unbound)
++ goto out;
++
++ error = -EBADF;
++ file = fget(arg);
++ if (!file)
++ goto out;
++
++ error = -EINVAL;
++ inode = file->f_dentry->d_inode;
++
++
++ if (S_ISBLK(inode->i_mode)) {
++ real_bdev = inode->i_bdev;
++ vr->vr_device = real_bdev;
++ __iget(real_bdev->bd_inode);
++ } else
++ goto out_fput;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_set_dev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ vr->vr_state = Vr_bound;
++ error = 0;
++
++ out_fput:
++ fput(file);
++ out:
++ return error;
++}
++
++static int vroot_clr_dev(
++ struct vroot_device *vr,
++ struct block_device *bdev)
++{
++ struct block_device *real_bdev;
++
++ if (vr->vr_state != Vr_bound)
++ return -ENXIO;
++ if (vr->vr_refcnt > 1) /* we needed one fd for the ioctl */
++ return -EBUSY;
++
++ real_bdev = vr->vr_device;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_clr_dev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ bdput(real_bdev);
++ vr->vr_state = Vr_unbound;
++ vr->vr_device = NULL;
++ return 0;
++}
++
++
++static int vr_ioctl(struct block_device *bdev, fmode_t mode,
++ unsigned int cmd, unsigned long arg)
++{
++ struct vroot_device *vr = bdev->bd_disk->private_data;
++ int err;
++
++ down(&vr->vr_ctl_mutex);
++ switch (cmd) {
++ case VROOT_SET_DEV:
++ err = vroot_set_dev(vr, bdev, arg);
++ break;
++ case VROOT_CLR_DEV:
++ err = vroot_clr_dev(vr, bdev);
++ break;
++ default:
++ err = -EINVAL;
++ break;
++ }
++ up(&vr->vr_ctl_mutex);
++ return err;
++}
++
++static int vr_open(struct block_device *bdev, fmode_t mode)
++{
++ struct vroot_device *vr = bdev->bd_disk->private_data;
++
++ down(&vr->vr_ctl_mutex);
++ vr->vr_refcnt++;
++ up(&vr->vr_ctl_mutex);
++ return 0;
++}
++
++static int vr_release(struct gendisk *disk, fmode_t mode)
++{
++ struct vroot_device *vr = disk->private_data;
++
++ down(&vr->vr_ctl_mutex);
++ --vr->vr_refcnt;
++ up(&vr->vr_ctl_mutex);
++ return 0;
++}
++
++static struct block_device_operations vr_fops = {
++ .owner = THIS_MODULE,
++ .open = vr_open,
++ .release = vr_release,
++ .ioctl = vr_ioctl,
++};
++
++static int vroot_make_request(struct request_queue *q, struct bio *bio)
++{
++ printk("vroot_make_request %p, %p\n", q, bio);
++ bio_io_error(bio);
++ return 0;
++}
++
++struct block_device *__vroot_get_real_bdev(struct block_device *bdev)
++{
++ struct inode *inode = bdev->bd_inode;
++ struct vroot_device *vr;
++ struct block_device *real_bdev;
++ int minor = iminor(inode);
++
++ vr = &vroot_dev[minor];
++ real_bdev = vr->vr_device;
++
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot[%d]_get_real_bdev: dev=" VXF_DEV,
++ vr->vr_number, VXD_DEV(real_bdev));
++
++ if (vr->vr_state != Vr_bound)
++ return ERR_PTR(-ENXIO);
++
++ __iget(real_bdev->bd_inode);
++ return real_bdev;
++}
++
++
++
++/*
++ * And now the modules code and kernel interface.
++ */
++
++module_param(max_vroot, int, 0);
++
++MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR);
++
++MODULE_AUTHOR ("Herbert Ptzl");
++MODULE_DESCRIPTION ("Virtual Root Device Mapper");
++
++
++int __init vroot_init(void)
++{
++ int err, i;
++
++ if (max_vroot < 1 || max_vroot > 256) {
++ max_vroot = MAX_VROOT_DEFAULT;
++ printk(KERN_WARNING "vroot: invalid max_vroot "
++ "(must be between 1 and 256), "
++ "using default (%d)\n", max_vroot);
++ }
++
++ if (register_blkdev(VROOT_MAJOR, "vroot"))
++ return -EIO;
++
++ err = -ENOMEM;
++ vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL);
++ if (!vroot_dev)
++ goto out_mem1;
++ memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device));
++
++ disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL);
++ if (!disks)
++ goto out_mem2;
++
++ for (i = 0; i < max_vroot; i++) {
++ disks[i] = alloc_disk(1);
++ if (!disks[i])
++ goto out_mem3;
++ disks[i]->queue = blk_alloc_queue(GFP_KERNEL);
++ if (!disks[i]->queue)
++ goto out_mem3;
++ blk_queue_make_request(disks[i]->queue, vroot_make_request);
++ }
++
++ for (i = 0; i < max_vroot; i++) {
++ struct vroot_device *vr = &vroot_dev[i];
++ struct gendisk *disk = disks[i];
++
++ memset(vr, 0, sizeof(*vr));
++ sema_init(&vr->vr_ctl_mutex, 1);
++ vr->vr_number = i;
++ disk->major = VROOT_MAJOR;
++ disk->first_minor = i;
++ disk->fops = &vr_fops;
++ sprintf(disk->disk_name, "vroot%d", i);
++ disk->private_data = vr;
++ }
++
++ err = register_vroot_grb(&__vroot_get_real_bdev);
++ if (err)
++ goto out_mem3;
++
++ for (i = 0; i < max_vroot; i++)
++ add_disk(disks[i]);
++ printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot);
++ return 0;
++
++out_mem3:
++ while (i--)
++ put_disk(disks[i]);
++ kfree(disks);
++out_mem2:
++ kfree(vroot_dev);
++out_mem1:
++ unregister_blkdev(VROOT_MAJOR, "vroot");
++ printk(KERN_ERR "vroot: ran out of memory\n");
++ return err;
++}
++
++void vroot_exit(void)
++{
++ int i;
++
++ if (unregister_vroot_grb(&__vroot_get_real_bdev))
++ printk(KERN_WARNING "vroot: cannot unregister grb\n");
++
++ for (i = 0; i < max_vroot; i++) {
++ del_gendisk(disks[i]);
++ put_disk(disks[i]);
++ }
++ unregister_blkdev(VROOT_MAJOR, "vroot");
++
++ kfree(disks);
++ kfree(vroot_dev);
++}
++
++module_init(vroot_init);
++module_exit(vroot_exit);
++
++#ifndef MODULE
++
++static int __init max_vroot_setup(char *str)
++{
++ max_vroot = simple_strtol(str, NULL, 0);
++ return 1;
++}
++
++__setup("max_vroot=", max_vroot_setup);
++
++#endif
++
+diff -NurpP --minimal linux-3.0.9/drivers/infiniband/core/addr.c linux-3.0.9-vs2.3.2.1/drivers/infiniband/core/addr.c
+--- linux-3.0.9/drivers/infiniband/core/addr.c 2011-07-22 11:17:45.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/infiniband/core/addr.c 2011-06-16 14:16:51.000000000 +0200
+@@ -252,7 +252,7 @@ static int addr6_resolve(struct sockaddr
+
+ if (ipv6_addr_any(&fl6.saddr)) {
+ ret = ipv6_dev_get_saddr(&init_net, ip6_dst_idev(dst)->dev,
+- &fl6.daddr, 0, &fl6.saddr);
++ &fl6.daddr, 0, &fl6.saddr, NULL);
+ if (ret)
+ goto put;
+
+diff -NurpP --minimal linux-3.0.9/drivers/infiniband/hw/ipath/ipath_user_pages.c linux-3.0.9-vs2.3.2.1/drivers/infiniband/hw/ipath/ipath_user_pages.c
+--- linux-3.0.9/drivers/infiniband/hw/ipath/ipath_user_pages.c 2011-05-22 16:17:16.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/infiniband/hw/ipath/ipath_user_pages.c 2011-06-10 22:11:24.000000000 +0200
+@@ -35,6 +35,7 @@
+ #include <linux/device.h>
+ #include <linux/slab.h>
+ #include <linux/sched.h>
++#include <linux/vs_memory.h>
+
+ #include "ipath_kernel.h"
+
+diff -NurpP --minimal linux-3.0.9/drivers/md/dm-ioctl.c linux-3.0.9-vs2.3.2.1/drivers/md/dm-ioctl.c
+--- linux-3.0.9/drivers/md/dm-ioctl.c 2011-05-22 16:17:18.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/md/dm-ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -16,6 +16,7 @@
+ #include <linux/dm-ioctl.h>
+ #include <linux/hdreg.h>
+ #include <linux/compat.h>
++#include <linux/vs_context.h>
+
+ #include <asm/uaccess.h>
+
+@@ -106,7 +107,8 @@ static struct hash_cell *__get_name_cell
+ unsigned int h = hash_str(str);
+
+ list_for_each_entry (hc, _name_buckets + h, name_list)
+- if (!strcmp(hc->name, str)) {
++ if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
++ !strcmp(hc->name, str)) {
+ dm_get(hc->md);
+ return hc;
+ }
+@@ -120,7 +122,8 @@ static struct hash_cell *__get_uuid_cell
+ unsigned int h = hash_str(str);
+
+ list_for_each_entry (hc, _uuid_buckets + h, uuid_list)
+- if (!strcmp(hc->uuid, str)) {
++ if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
++ !strcmp(hc->uuid, str)) {
+ dm_get(hc->md);
+ return hc;
+ }
+@@ -427,6 +430,9 @@ typedef int (*ioctl_fn)(struct dm_ioctl
+
+ static int remove_all(struct dm_ioctl *param, size_t param_size)
+ {
++ if (!vx_check(0, VS_ADMIN))
++ return -EPERM;
++
+ dm_hash_remove_all(1);
+ param->data_size = 0;
+ return 0;
+@@ -474,6 +480,8 @@ static int list_devices(struct dm_ioctl
+ */
+ for (i = 0; i < NUM_BUCKETS; i++) {
+ list_for_each_entry (hc, _name_buckets + i, name_list) {
++ if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
++ continue;
+ needed += sizeof(struct dm_name_list);
+ needed += strlen(hc->name) + 1;
+ needed += ALIGN_MASK;
+@@ -497,6 +505,8 @@ static int list_devices(struct dm_ioctl
+ */
+ for (i = 0; i < NUM_BUCKETS; i++) {
+ list_for_each_entry (hc, _name_buckets + i, name_list) {
++ if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
++ continue;
+ if (old_nl)
+ old_nl->next = (uint32_t) ((void *) nl -
+ (void *) old_nl);
+@@ -731,10 +741,11 @@ static struct hash_cell *__find_device_h
+ if (!md)
+ goto out;
+
+- mdptr = dm_get_mdptr(md);
++ if (vx_check(dm_get_xid(md), VS_WATCH_P | VS_IDENT))
++ mdptr = dm_get_mdptr(md);
++
+ if (!mdptr)
+ dm_put(md);
+-
+ out:
+ return mdptr;
+ }
+@@ -1577,8 +1588,8 @@ static int ctl_ioctl(uint command, struc
+ ioctl_fn fn = NULL;
+ size_t input_param_size;
+
+- /* only root can play with this */
+- if (!capable(CAP_SYS_ADMIN))
++ /* only root and certain contexts can play with this */
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_MAPPER))
+ return -EACCES;
+
+ if (_IOC_TYPE(command) != DM_IOCTL)
+diff -NurpP --minimal linux-3.0.9/drivers/md/dm.c linux-3.0.9-vs2.3.2.1/drivers/md/dm.c
+--- linux-3.0.9/drivers/md/dm.c 2011-11-15 16:40:44.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/drivers/md/dm.c 2011-08-08 23:04:47.000000000 +0200
+@@ -20,6 +20,7 @@
+ #include <linux/idr.h>
+ #include <linux/hdreg.h>
+ #include <linux/delay.h>
++#include <linux/vs_base.h>
+
+ #include <trace/events/block.h>
+
+@@ -121,6 +122,7 @@ struct mapped_device {
+ rwlock_t map_lock;
+ atomic_t holders;
+ atomic_t open_count;
++ xid_t xid;
+
+ unsigned long flags;
+
+@@ -334,6 +336,7 @@ int dm_deleting_md(struct mapped_device
+ static int dm_blk_open(struct block_device *bdev, fmode_t mode)
+ {
+ struct mapped_device *md;
++ int ret = -ENXIO;
+
+ spin_lock(&_minor_lock);
+
+@@ -342,18 +345,19 @@ static int dm_blk_open(struct block_devi
+ goto out;
+
+ if (test_bit(DMF_FREEING, &md->flags) ||
+- dm_deleting_md(md)) {
+- md = NULL;
++ dm_deleting_md(md))
++ goto out;
++
++ ret = -EACCES;
++ if (!vx_check(md->xid, VS_IDENT|VS_HOSTID))
+ goto out;
+- }
+
+ dm_get(md);
+ atomic_inc(&md->open_count);
+-
++ ret = 0;
+ out:
+ spin_unlock(&_minor_lock);
+-
+- return md ? 0 : -ENXIO;
++ return ret;
+ }
+
+ static int dm_blk_close(struct gendisk *disk, fmode_t mode)
+@@ -574,6 +578,14 @@ int dm_set_geometry(struct mapped_device
+ return 0;
+ }
+
++/*
++ * Get the xid associated with a dm device
++ */
++xid_t dm_get_xid(struct mapped_device *md)
++{
++ return md->xid;
++}
++
+ /*-----------------------------------------------------------------
+ * CRUD START:
+ * A more elegant soln is in the works that uses the queue
+@@ -1847,6 +1859,7 @@ static struct mapped_device *alloc_dev(i
+ INIT_LIST_HEAD(&md->uevent_list);
+ spin_lock_init(&md->uevent_lock);
+
++ md->xid = vx_current_xid();
+ md->queue = blk_alloc_queue(GFP_KERNEL);
+ if (!md->queue)
+ goto bad_queue;
+diff -NurpP --minimal linux-3.0.9/drivers/md/dm.h linux-3.0.9-vs2.3.2.1/drivers/md/dm.h
+--- linux-3.0.9/drivers/md/dm.h 2011-05-22 16:17:18.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/md/dm.h 2011-06-10 22:11:24.000000000 +0200
+@@ -41,6 +41,8 @@ struct dm_dev_internal {
+ struct dm_table;
+ struct dm_md_mempools;
+
++xid_t dm_get_xid(struct mapped_device *md);
++
+ /*-----------------------------------------------------------------
+ * Internal table functions.
+ *---------------------------------------------------------------*/
+diff -NurpP --minimal linux-3.0.9/drivers/net/tun.c linux-3.0.9-vs2.3.2.1/drivers/net/tun.c
+--- linux-3.0.9/drivers/net/tun.c 2011-11-15 16:40:45.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/drivers/net/tun.c 2011-08-29 03:45:08.000000000 +0200
+@@ -64,6 +64,7 @@
+ #include <linux/nsproxy.h>
+ #include <linux/virtio_net.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_network.h>
+ #include <net/net_namespace.h>
+ #include <net/netns/generic.h>
+ #include <net/rtnetlink.h>
+@@ -121,6 +122,7 @@ struct tun_struct {
+ unsigned int flags;
+ uid_t owner;
+ gid_t group;
++ nid_t nid;
+
+ struct net_device *dev;
+ u32 set_features;
+@@ -905,6 +907,7 @@ static void tun_setup(struct net_device
+
+ tun->owner = -1;
+ tun->group = -1;
++ tun->nid = current->nid;
+
+ dev->ethtool_ops = &tun_ethtool_ops;
+ dev->destructor = tun_free_netdev;
+@@ -1055,7 +1058,7 @@ static int tun_set_iff(struct net *net,
+
+ if (((tun->owner != -1 && cred->euid != tun->owner) ||
+ (tun->group != -1 && !in_egroup_p(tun->group))) &&
+- !capable(CAP_NET_ADMIN))
++ !cap_raised(current_cap(), CAP_NET_ADMIN))
+ return -EPERM;
+ err = security_tun_dev_attach(tun->socket.sk);
+ if (err < 0)
+@@ -1069,7 +1072,7 @@ static int tun_set_iff(struct net *net,
+ char *name;
+ unsigned long flags = 0;
+
+- if (!capable(CAP_NET_ADMIN))
++ if (!nx_capable(CAP_NET_ADMIN, NXC_TUN_CREATE))
+ return -EPERM;
+ err = security_tun_dev_create();
+ if (err < 0)
+@@ -1137,6 +1140,9 @@ static int tun_set_iff(struct net *net,
+
+ sk->sk_destruct = tun_sock_destruct;
+
++ if (!nx_check(tun->nid, VS_IDENT | VS_HOSTID | VS_ADMIN_P))
++ return -EPERM;
++
+ err = tun_attach(tun, file);
+ if (err < 0)
+ goto failed;
+@@ -1318,6 +1324,16 @@ static long __tun_chr_ioctl(struct file
+ tun_debug(KERN_INFO, tun, "group set to %d\n", tun->group);
+ break;
+
++ case TUNSETNID:
++ if (!capable(CAP_CONTEXT))
++ return -EPERM;
++
++ /* Set nid owner of the device */
++ tun->nid = (nid_t) arg;
++
++ tun_debug(KERN_INFO, tun, "nid owner set to %u\n", tun->nid);
++ break;
++
+ case TUNSETLINK:
+ /* Only allow setting the type when the interface is down */
+ if (tun->dev->flags & IFF_UP) {
+diff -NurpP --minimal linux-3.0.9/drivers/tty/sysrq.c linux-3.0.9-vs2.3.2.1/drivers/tty/sysrq.c
+--- linux-3.0.9/drivers/tty/sysrq.c 2011-05-22 16:17:44.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/drivers/tty/sysrq.c 2011-06-10 22:11:24.000000000 +0200
+@@ -41,6 +41,7 @@
+ #include <linux/oom.h>
+ #include <linux/slab.h>
+ #include <linux/input.h>
++#include <linux/vserver/debug.h>
+
+ #include <asm/ptrace.h>
+ #include <asm/irq_regs.h>
+@@ -395,6 +396,21 @@ static struct sysrq_key_op sysrq_unrt_op
+ .enable_mask = SYSRQ_ENABLE_RTNICE,
+ };
+
++
++#ifdef CONFIG_VSERVER_DEBUG
++static void sysrq_handle_vxinfo(int key)
++{
++ dump_vx_info_inactive((key == 'x') ? 0 : 1);
++}
++
++static struct sysrq_key_op sysrq_showvxinfo_op = {
++ .handler = sysrq_handle_vxinfo,
++ .help_msg = "conteXt",
++ .action_msg = "Show Context Info",
++ .enable_mask = SYSRQ_ENABLE_DUMP,
++};
++#endif
++
+ /* Key Operations table and lock */
+ static DEFINE_SPINLOCK(sysrq_key_table_lock);
+
+@@ -449,7 +465,11 @@ static struct sysrq_key_op *sysrq_key_ta
+ NULL, /* v */
+ &sysrq_showstate_blocked_op, /* w */
+ /* x: May be registered on ppc/powerpc for xmon */
++#ifdef CONFIG_VSERVER_DEBUG
++ &sysrq_showvxinfo_op, /* x */
++#else
+ NULL, /* x */
++#endif
+ /* y: May be registered on sparc64 for global register dump */
+ NULL, /* y */
+ &sysrq_ftrace_dump_op, /* z */
+@@ -464,6 +484,8 @@ static int sysrq_key_table_key2index(int
+ retval = key - '0';
+ else if ((key >= 'a') && (key <= 'z'))
+ retval = key + 10 - 'a';
++ else if ((key >= 'A') && (key <= 'Z'))
++ retval = key + 10 - 'A';
+ else
+ retval = -1;
+ return retval;
+diff -NurpP --minimal linux-3.0.9/drivers/tty/tty_io.c linux-3.0.9-vs2.3.2.1/drivers/tty/tty_io.c
+--- linux-3.0.9/drivers/tty/tty_io.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/drivers/tty/tty_io.c 2011-11-15 17:37:05.000000000 +0100
+@@ -104,6 +104,7 @@
+
+ #include <linux/kmod.h>
+ #include <linux/nsproxy.h>
++#include <linux/vs_pid.h>
+
+ #undef TTY_DEBUG_HANGUP
+
+@@ -2080,7 +2081,8 @@ static int tiocsti(struct tty_struct *tt
+ char ch, mbz = 0;
+ struct tty_ldisc *ld;
+
+- if ((current->signal->tty != tty) && !capable(CAP_SYS_ADMIN))
++ if (((current->signal->tty != tty) &&
++ !vx_capable(CAP_SYS_ADMIN, VXC_TIOCSTI)))
+ return -EPERM;
+ if (get_user(ch, p))
+ return -EFAULT;
+@@ -2368,6 +2370,7 @@ static int tiocspgrp(struct tty_struct *
+ return -ENOTTY;
+ if (get_user(pgrp_nr, p))
+ return -EFAULT;
++ pgrp_nr = vx_rmap_pid(pgrp_nr);
+ if (pgrp_nr < 0)
+ return -EINVAL;
+ rcu_read_lock();
+diff -NurpP --minimal linux-3.0.9/fs/attr.c linux-3.0.9-vs2.3.2.1/fs/attr.c
+--- linux-3.0.9/fs/attr.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/attr.c 2011-06-10 22:11:24.000000000 +0200
+@@ -13,6 +13,9 @@
+ #include <linux/fsnotify.h>
+ #include <linux/fcntl.h>
+ #include <linux/security.h>
++#include <linux/proc_fs.h>
++#include <linux/devpts_fs.h>
++#include <linux/vs_tag.h>
+
+ /**
+ * inode_change_ok - check if attribute changes to an inode are allowed
+@@ -73,6 +76,10 @@ int inode_change_ok(const struct inode *
+ return -EPERM;
+ }
+
++ /* check for inode tag permission */
++ if (dx_permission(inode, MAY_WRITE))
++ return -EACCES;
++
+ return 0;
+ }
+ EXPORT_SYMBOL(inode_change_ok);
+@@ -143,6 +150,8 @@ void setattr_copy(struct inode *inode, c
+ inode->i_uid = attr->ia_uid;
+ if (ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ if (ia_valid & ATTR_ATIME)
+ inode->i_atime = timespec_trunc(attr->ia_atime,
+ inode->i_sb->s_time_gran);
+@@ -170,7 +179,8 @@ int notify_change(struct dentry * dentry
+ struct timespec now;
+ unsigned int ia_valid = attr->ia_valid;
+
+- if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_TIMES_SET)) {
++ if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID |
++ ATTR_TAG | ATTR_TIMES_SET)) {
+ if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+ return -EPERM;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/binfmt_aout.c linux-3.0.9-vs2.3.2.1/fs/binfmt_aout.c
+--- linux-3.0.9/fs/binfmt_aout.c 2010-10-21 13:07:47.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/binfmt_aout.c 2011-06-10 22:11:24.000000000 +0200
+@@ -25,6 +25,7 @@
+ #include <linux/init.h>
+ #include <linux/coredump.h>
+ #include <linux/slab.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+diff -NurpP --minimal linux-3.0.9/fs/binfmt_elf.c linux-3.0.9-vs2.3.2.1/fs/binfmt_elf.c
+--- linux-3.0.9/fs/binfmt_elf.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/binfmt_elf.c 2011-11-15 17:37:06.000000000 +0100
+@@ -32,6 +32,7 @@
+ #include <linux/elf.h>
+ #include <linux/utsname.h>
+ #include <linux/coredump.h>
++#include <linux/vs_memory.h>
+ #include <asm/uaccess.h>
+ #include <asm/param.h>
+ #include <asm/page.h>
+diff -NurpP --minimal linux-3.0.9/fs/binfmt_flat.c linux-3.0.9-vs2.3.2.1/fs/binfmt_flat.c
+--- linux-3.0.9/fs/binfmt_flat.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/binfmt_flat.c 2011-06-10 22:11:24.000000000 +0200
+@@ -35,6 +35,7 @@
+ #include <linux/init.h>
+ #include <linux/flat.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/system.h>
+diff -NurpP --minimal linux-3.0.9/fs/binfmt_som.c linux-3.0.9-vs2.3.2.1/fs/binfmt_som.c
+--- linux-3.0.9/fs/binfmt_som.c 2010-02-25 11:52:04.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/binfmt_som.c 2011-06-10 22:11:24.000000000 +0200
+@@ -28,6 +28,7 @@
+ #include <linux/shm.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+diff -NurpP --minimal linux-3.0.9/fs/block_dev.c linux-3.0.9-vs2.3.2.1/fs/block_dev.c
+--- linux-3.0.9/fs/block_dev.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/block_dev.c 2011-11-15 17:37:06.000000000 +0100
+@@ -25,6 +25,7 @@
+ #include <linux/namei.h>
+ #include <linux/log2.h>
+ #include <linux/kmemleak.h>
++#include <linux/vs_device.h>
+ #include <asm/uaccess.h>
+ #include "internal.h"
+
+@@ -553,6 +554,7 @@ struct block_device *bdget(dev_t dev)
+ bdev->bd_invalidated = 0;
+ inode->i_mode = S_IFBLK;
+ inode->i_rdev = dev;
++ inode->i_mdev = dev;
+ inode->i_bdev = bdev;
+ inode->i_data.a_ops = &def_blk_aops;
+ mapping_set_gfp_mask(&inode->i_data, GFP_USER);
+@@ -599,6 +601,11 @@ EXPORT_SYMBOL(bdput);
+ static struct block_device *bd_acquire(struct inode *inode)
+ {
+ struct block_device *bdev;
++ dev_t mdev;
++
++ if (!vs_map_blkdev(inode->i_rdev, &mdev, DATTR_OPEN))
++ return NULL;
++ inode->i_mdev = mdev;
+
+ spin_lock(&bdev_lock);
+ bdev = inode->i_bdev;
+@@ -609,7 +616,7 @@ static struct block_device *bd_acquire(s
+ }
+ spin_unlock(&bdev_lock);
+
+- bdev = bdget(inode->i_rdev);
++ bdev = bdget(mdev);
+ if (bdev) {
+ spin_lock(&bdev_lock);
+ if (!inode->i_bdev) {
+diff -NurpP --minimal linux-3.0.9/fs/btrfs/ctree.h linux-3.0.9-vs2.3.2.1/fs/btrfs/ctree.h
+--- linux-3.0.9/fs/btrfs/ctree.h 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/btrfs/ctree.h 2011-07-19 00:44:39.000000000 +0200
+@@ -600,11 +600,14 @@ struct btrfs_inode_item {
+ /* modification sequence number for NFS */
+ __le64 sequence;
+
++ __le16 tag;
+ /*
+ * a little future expansion, for more than this we can
+ * just grow the inode item and version it
+ */
+- __le64 reserved[4];
++ __le16 reserved16;
++ __le32 reserved32;
++ __le64 reserved[3];
+ struct btrfs_timespec atime;
+ struct btrfs_timespec ctime;
+ struct btrfs_timespec mtime;
+@@ -1359,6 +1362,8 @@ struct btrfs_ioctl_defrag_range_args {
+ #define BTRFS_MOUNT_AUTO_DEFRAG (1 << 16)
+ #define BTRFS_MOUNT_INODE_MAP_CACHE (1 << 17)
+
++#define BTRFS_MOUNT_TAGGED (1 << 24)
++
+ #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt)
+ #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt)
+ #define btrfs_test_opt(root, opt) ((root)->fs_info->mount_opt & \
+@@ -1568,6 +1573,7 @@ BTRFS_SETGET_FUNCS(inode_block_group, st
+ BTRFS_SETGET_FUNCS(inode_nlink, struct btrfs_inode_item, nlink, 32);
+ BTRFS_SETGET_FUNCS(inode_uid, struct btrfs_inode_item, uid, 32);
+ BTRFS_SETGET_FUNCS(inode_gid, struct btrfs_inode_item, gid, 32);
++BTRFS_SETGET_FUNCS(inode_tag, struct btrfs_inode_item, tag, 16);
+ BTRFS_SETGET_FUNCS(inode_mode, struct btrfs_inode_item, mode, 32);
+ BTRFS_SETGET_FUNCS(inode_rdev, struct btrfs_inode_item, rdev, 64);
+ BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64);
+@@ -1621,6 +1627,10 @@ BTRFS_SETGET_FUNCS(extent_flags, struct
+
+ BTRFS_SETGET_FUNCS(extent_refs_v0, struct btrfs_extent_item_v0, refs, 32);
+
++#define BTRFS_INODE_IXUNLINK (1 << 24)
++#define BTRFS_INODE_BARRIER (1 << 25)
++#define BTRFS_INODE_COW (1 << 26)
++
+
+ BTRFS_SETGET_FUNCS(tree_block_level, struct btrfs_tree_block_info, level, 8);
+
+@@ -2595,6 +2605,7 @@ extern const struct dentry_operations bt
+ long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+ void btrfs_update_iflags(struct inode *inode);
+ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir);
++int btrfs_sync_flags(struct inode *inode, int, int);
+ int btrfs_defrag_file(struct inode *inode, struct file *file,
+ struct btrfs_ioctl_defrag_range_args *range,
+ u64 newer_than, unsigned long max_pages);
+diff -NurpP --minimal linux-3.0.9/fs/btrfs/disk-io.c linux-3.0.9-vs2.3.2.1/fs/btrfs/disk-io.c
+--- linux-3.0.9/fs/btrfs/disk-io.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/btrfs/disk-io.c 2011-06-22 12:39:15.000000000 +0200
+@@ -1765,6 +1765,9 @@ struct btrfs_root *open_ctree(struct sup
+ goto fail_alloc;
+ }
+
++ if (btrfs_test_opt(tree_root, TAGGED))
++ sb->s_flags |= MS_TAGGED;
++
+ features = btrfs_super_incompat_flags(disk_super) &
+ ~BTRFS_FEATURE_INCOMPAT_SUPP;
+ if (features) {
+diff -NurpP --minimal linux-3.0.9/fs/btrfs/inode.c linux-3.0.9-vs2.3.2.1/fs/btrfs/inode.c
+--- linux-3.0.9/fs/btrfs/inode.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/btrfs/inode.c 2011-10-18 13:51:13.000000000 +0200
+@@ -38,6 +38,7 @@
+ #include <linux/falloc.h>
+ #include <linux/slab.h>
+ #include <linux/ratelimit.h>
++#include <linux/vs_tag.h>
+ #include "compat.h"
+ #include "ctree.h"
+ #include "disk-io.h"
+@@ -2508,6 +2509,8 @@ static void btrfs_read_locked_inode(stru
+ struct btrfs_key location;
+ int maybe_acls;
+ u32 rdev;
++ uid_t uid;
++ gid_t gid;
+ int ret;
+ bool filled = false;
+
+@@ -2540,8 +2543,13 @@ static void btrfs_read_locked_inode(stru
+
+ inode->i_mode = btrfs_inode_mode(leaf, inode_item);
+ inode->i_nlink = btrfs_inode_nlink(leaf, inode_item);
+- inode->i_uid = btrfs_inode_uid(leaf, inode_item);
+- inode->i_gid = btrfs_inode_gid(leaf, inode_item);
++
++ uid = btrfs_inode_uid(leaf, inode_item);
++ gid = btrfs_inode_gid(leaf, inode_item);
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ btrfs_inode_tag(leaf, inode_item));
+ btrfs_i_size_write(inode, btrfs_inode_size(leaf, inode_item));
+
+ tspec = btrfs_inode_atime(inode_item);
+@@ -2624,6 +2632,9 @@ static void fill_inode_item(struct btrfs
+ struct btrfs_inode_item *item,
+ struct inode *inode)
+ {
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
++
+ if (!leaf->map_token)
+ map_private_extent_buffer(leaf, (unsigned long)item,
+ sizeof(struct btrfs_inode_item),
+@@ -2631,8 +2642,11 @@ static void fill_inode_item(struct btrfs
+ &leaf->map_start, &leaf->map_len,
+ KM_USER1);
+
+- btrfs_set_inode_uid(leaf, item, inode->i_uid);
+- btrfs_set_inode_gid(leaf, item, inode->i_gid);
++ btrfs_set_inode_uid(leaf, item, uid);
++ btrfs_set_inode_gid(leaf, item, gid);
++#ifdef CONFIG_TAGGING_INTERN
++ btrfs_set_inode_tag(leaf, item, inode->i_tag);
++#endif
+ btrfs_set_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size);
+ btrfs_set_inode_mode(leaf, item, inode->i_mode);
+ btrfs_set_inode_nlink(leaf, item, inode->i_nlink);
+@@ -7360,6 +7374,7 @@ static const struct inode_operations btr
+ .listxattr = btrfs_listxattr,
+ .removexattr = btrfs_removexattr,
+ .permission = btrfs_permission,
++ .sync_flags = btrfs_sync_flags,
+ };
+ static const struct inode_operations btrfs_dir_ro_inode_operations = {
+ .lookup = btrfs_lookup,
+@@ -7432,6 +7447,7 @@ static const struct inode_operations btr
+ .removexattr = btrfs_removexattr,
+ .permission = btrfs_permission,
+ .fiemap = btrfs_fiemap,
++ .sync_flags = btrfs_sync_flags,
+ };
+ static const struct inode_operations btrfs_special_inode_operations = {
+ .getattr = btrfs_getattr,
+diff -NurpP --minimal linux-3.0.9/fs/btrfs/ioctl.c linux-3.0.9-vs2.3.2.1/fs/btrfs/ioctl.c
+--- linux-3.0.9/fs/btrfs/ioctl.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/btrfs/ioctl.c 2011-06-22 12:39:15.000000000 +0200
+@@ -70,10 +70,13 @@ static unsigned int btrfs_flags_to_ioctl
+ {
+ unsigned int iflags = 0;
+
+- if (flags & BTRFS_INODE_SYNC)
+- iflags |= FS_SYNC_FL;
+ if (flags & BTRFS_INODE_IMMUTABLE)
+ iflags |= FS_IMMUTABLE_FL;
++ if (flags & BTRFS_INODE_IXUNLINK)
++ iflags |= FS_IXUNLINK_FL;
++
++ if (flags & BTRFS_INODE_SYNC)
++ iflags |= FS_SYNC_FL;
+ if (flags & BTRFS_INODE_APPEND)
+ iflags |= FS_APPEND_FL;
+ if (flags & BTRFS_INODE_NODUMP)
+@@ -90,28 +93,78 @@ static unsigned int btrfs_flags_to_ioctl
+ else if (flags & BTRFS_INODE_NOCOMPRESS)
+ iflags |= FS_NOCOMP_FL;
+
++ if (flags & BTRFS_INODE_BARRIER)
++ iflags |= FS_BARRIER_FL;
++ if (flags & BTRFS_INODE_COW)
++ iflags |= FS_COW_FL;
+ return iflags;
+ }
+
+ /*
+- * Update inode->i_flags based on the btrfs internal flags.
++ * Update inode->i_(v)flags based on the btrfs internal flags.
+ */
+ void btrfs_update_iflags(struct inode *inode)
+ {
+ struct btrfs_inode *ip = BTRFS_I(inode);
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+- if (ip->flags & BTRFS_INODE_SYNC)
+- inode->i_flags |= S_SYNC;
+ if (ip->flags & BTRFS_INODE_IMMUTABLE)
+ inode->i_flags |= S_IMMUTABLE;
++ if (ip->flags & BTRFS_INODE_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++
++ if (ip->flags & BTRFS_INODE_SYNC)
++ inode->i_flags |= S_SYNC;
+ if (ip->flags & BTRFS_INODE_APPEND)
+ inode->i_flags |= S_APPEND;
+ if (ip->flags & BTRFS_INODE_NOATIME)
+ inode->i_flags |= S_NOATIME;
+ if (ip->flags & BTRFS_INODE_DIRSYNC)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (ip->flags & BTRFS_INODE_BARRIER)
++ inode->i_vflags |= V_BARRIER;
++ if (ip->flags & BTRFS_INODE_COW)
++ inode->i_vflags |= V_COW;
++}
++
++/*
++ * Update btrfs internal flags from inode->i_(v)flags.
++ */
++void btrfs_update_flags(struct inode *inode)
++{
++ struct btrfs_inode *ip = BTRFS_I(inode);
++
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ ip->flags &= ~(BTRFS_INODE_SYNC | BTRFS_INODE_APPEND |
++ BTRFS_INODE_IMMUTABLE | BTRFS_INODE_IXUNLINK |
++ BTRFS_INODE_NOATIME | BTRFS_INODE_DIRSYNC |
++ BTRFS_INODE_BARRIER | BTRFS_INODE_COW);
++
++ if (flags & S_IMMUTABLE)
++ ip->flags |= BTRFS_INODE_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->flags |= BTRFS_INODE_IXUNLINK;
++
++ if (flags & S_SYNC)
++ ip->flags |= BTRFS_INODE_SYNC;
++ if (flags & S_APPEND)
++ ip->flags |= BTRFS_INODE_APPEND;
++ if (flags & S_NOATIME)
++ ip->flags |= BTRFS_INODE_NOATIME;
++ if (flags & S_DIRSYNC)
++ ip->flags |= BTRFS_INODE_DIRSYNC;
++
++ if (vflags & V_BARRIER)
++ ip->flags |= BTRFS_INODE_BARRIER;
++ if (vflags & V_COW)
++ ip->flags |= BTRFS_INODE_COW;
+ }
+
+ /*
+@@ -129,7 +182,7 @@ void btrfs_inherit_iflags(struct inode *
+ flags = BTRFS_I(dir)->flags;
+
+ if (S_ISREG(inode->i_mode))
+- flags &= ~BTRFS_INODE_DIRSYNC;
++ flags &= ~(BTRFS_INODE_DIRSYNC | BTRFS_INODE_BARRIER);
+ else if (!S_ISDIR(inode->i_mode))
+ flags &= (BTRFS_INODE_NODUMP | BTRFS_INODE_NOATIME);
+
+@@ -137,6 +190,30 @@ void btrfs_inherit_iflags(struct inode *
+ btrfs_update_iflags(inode);
+ }
+
++int btrfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct btrfs_inode *ip = BTRFS_I(inode);
++ struct btrfs_root *root = ip->root;
++ struct btrfs_trans_handle *trans;
++ int ret;
++
++ trans = btrfs_join_transaction(root);
++ BUG_ON(!trans);
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ btrfs_update_flags(inode);
++
++ ret = btrfs_update_inode(trans, root, inode);
++ BUG_ON(ret);
++
++ btrfs_update_iflags(inode);
++ inode->i_ctime = CURRENT_TIME;
++ btrfs_end_transaction(trans, root);
++
++ return 0;
++}
++
+ static int btrfs_ioctl_getflags(struct file *file, void __user *arg)
+ {
+ struct btrfs_inode *ip = BTRFS_I(file->f_path.dentry->d_inode);
+@@ -188,7 +265,8 @@ static int btrfs_ioctl_setflags(struct f
+
+ flags = btrfs_mask_flags(inode->i_mode, flags);
+ oldflags = btrfs_flags_to_ioctl(ip->flags);
+- if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
++ if ((flags ^ oldflags) & (FS_APPEND_FL |
++ FS_IMMUTABLE_FL | FS_IXUNLINK_FL)) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ ret = -EPERM;
+ goto out_unlock;
+@@ -199,14 +277,19 @@ static int btrfs_ioctl_setflags(struct f
+ if (ret)
+ goto out_unlock;
+
+- if (flags & FS_SYNC_FL)
+- ip->flags |= BTRFS_INODE_SYNC;
+- else
+- ip->flags &= ~BTRFS_INODE_SYNC;
+ if (flags & FS_IMMUTABLE_FL)
+ ip->flags |= BTRFS_INODE_IMMUTABLE;
+ else
+ ip->flags &= ~BTRFS_INODE_IMMUTABLE;
++ if (flags & FS_IXUNLINK_FL)
++ ip->flags |= BTRFS_INODE_IXUNLINK;
++ else
++ ip->flags &= ~BTRFS_INODE_IXUNLINK;
++
++ if (flags & FS_SYNC_FL)
++ ip->flags |= BTRFS_INODE_SYNC;
++ else
++ ip->flags &= ~BTRFS_INODE_SYNC;
+ if (flags & FS_APPEND_FL)
+ ip->flags |= BTRFS_INODE_APPEND;
+ else
+diff -NurpP --minimal linux-3.0.9/fs/btrfs/super.c linux-3.0.9-vs2.3.2.1/fs/btrfs/super.c
+--- linux-3.0.9/fs/btrfs/super.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/btrfs/super.c 2011-07-19 00:44:39.000000000 +0200
+@@ -162,7 +162,7 @@ enum {
+ Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard,
+ Opt_space_cache, Opt_clear_cache, Opt_user_subvol_rm_allowed,
+ Opt_enospc_debug, Opt_subvolrootid, Opt_defrag,
+- Opt_inode_cache, Opt_err,
++ Opt_inode_cache, Opt_tag, Opt_notag, Opt_tagid, Opt_err,
+ };
+
+ static match_table_t tokens = {
+@@ -195,6 +195,9 @@ static match_table_t tokens = {
+ {Opt_subvolrootid, "subvolrootid=%d"},
+ {Opt_defrag, "autodefrag"},
+ {Opt_inode_cache, "inode_cache"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -381,6 +384,22 @@ int btrfs_parse_options(struct btrfs_roo
+ printk(KERN_INFO "btrfs: enabling auto defrag");
+ btrfs_set_opt(info->mount_opt, AUTO_DEFRAG);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ printk(KERN_INFO "btrfs: use tagging\n");
++ btrfs_set_opt(info->mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ printk(KERN_INFO "btrfs: disabled tagging\n");
++ btrfs_clear_opt(info->mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ btrfs_set_opt(info->mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_err:
+ printk(KERN_INFO "btrfs: unrecognized mount option "
+ "'%s'\n", p);
+@@ -907,6 +926,12 @@ static int btrfs_remount(struct super_bl
+ if (ret)
+ return -EINVAL;
+
++ if (btrfs_test_opt(root, TAGGED) && !(sb->s_flags & MS_TAGGED)) {
++ printk("btrfs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++
+ if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+ return 0;
+
+diff -NurpP --minimal linux-3.0.9/fs/char_dev.c linux-3.0.9-vs2.3.2.1/fs/char_dev.c
+--- linux-3.0.9/fs/char_dev.c 2011-03-15 18:07:31.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/char_dev.c 2011-06-10 22:11:24.000000000 +0200
+@@ -21,6 +21,8 @@
+ #include <linux/mutex.h>
+ #include <linux/backing-dev.h>
+ #include <linux/tty.h>
++#include <linux/vs_context.h>
++#include <linux/vs_device.h>
+
+ #include "internal.h"
+
+@@ -371,14 +373,21 @@ static int chrdev_open(struct inode *ino
+ struct cdev *p;
+ struct cdev *new = NULL;
+ int ret = 0;
++ dev_t mdev;
++
++ if (!vs_map_chrdev(inode->i_rdev, &mdev, DATTR_OPEN))
++ return -EPERM;
++ inode->i_mdev = mdev;
+
+ spin_lock(&cdev_lock);
+ p = inode->i_cdev;
+ if (!p) {
+ struct kobject *kobj;
+ int idx;
++
+ spin_unlock(&cdev_lock);
+- kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
++
++ kobj = kobj_lookup(cdev_map, mdev, &idx);
+ if (!kobj)
+ return -ENXIO;
+ new = container_of(kobj, struct cdev, kobj);
+diff -NurpP --minimal linux-3.0.9/fs/dcache.c linux-3.0.9-vs2.3.2.1/fs/dcache.c
+--- linux-3.0.9/fs/dcache.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/dcache.c 2011-07-22 11:20:39.000000000 +0200
+@@ -36,6 +36,7 @@
+ #include <linux/bit_spinlock.h>
+ #include <linux/rculist_bl.h>
+ #include <linux/prefetch.h>
++#include <linux/vs_limit.h>
+ #include "internal.h"
+
+ /*
+@@ -479,6 +480,8 @@ int d_invalidate(struct dentry * dentry)
+ spin_lock(&dentry->d_lock);
+ }
+
++ vx_dentry_dec(dentry);
++
+ /*
+ * Somebody else still using it?
+ *
+@@ -506,6 +509,7 @@ EXPORT_SYMBOL(d_invalidate);
+ static inline void __dget_dlock(struct dentry *dentry)
+ {
+ dentry->d_count++;
++ vx_dentry_inc(dentry);
+ }
+
+ static inline void __dget(struct dentry *dentry)
+@@ -1266,6 +1270,9 @@ struct dentry *d_alloc(struct dentry * p
+ struct dentry *dentry;
+ char *dname;
+
++ if (!vx_dentry_avail(1))
++ return NULL;
++
+ dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL);
+ if (!dentry)
+ return NULL;
+@@ -1288,6 +1295,7 @@ struct dentry *d_alloc(struct dentry * p
+
+ dentry->d_count = 1;
+ dentry->d_flags = 0;
++ vx_dentry_inc(dentry);
+ spin_lock_init(&dentry->d_lock);
+ seqcount_init(&dentry->d_seq);
+ dentry->d_inode = NULL;
+@@ -1945,6 +1953,7 @@ struct dentry *__d_lookup(struct dentry
+ }
+
+ dentry->d_count++;
++ vx_dentry_inc(dentry);
+ found = dentry;
+ spin_unlock(&dentry->d_lock);
+ break;
+diff -NurpP --minimal linux-3.0.9/fs/devpts/inode.c linux-3.0.9-vs2.3.2.1/fs/devpts/inode.c
+--- linux-3.0.9/fs/devpts/inode.c 2011-05-22 16:17:50.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/devpts/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -25,6 +25,7 @@
+ #include <linux/parser.h>
+ #include <linux/fsnotify.h>
+ #include <linux/seq_file.h>
++#include <linux/vs_base.h>
+
+ #define DEVPTS_DEFAULT_MODE 0600
+ /*
+@@ -36,6 +37,20 @@
+ #define DEVPTS_DEFAULT_PTMX_MODE 0000
+ #define PTMX_MINOR 2
+
++static int devpts_permission(struct inode *inode, int mask, unsigned int flags)
++{
++ int ret = -EACCES;
++
++ /* devpts is xid tagged */
++ if (vx_check((xid_t)inode->i_tag, VS_WATCH_P | VS_IDENT))
++ ret = generic_permission(inode, mask, flags, NULL);
++ return ret;
++}
++
++static struct inode_operations devpts_file_inode_operations = {
++ .permission = devpts_permission,
++};
++
+ extern int pty_limit; /* Config limit on Unix98 ptys */
+ static DEFINE_MUTEX(allocated_ptys_lock);
+
+@@ -263,6 +278,34 @@ static int devpts_show_options(struct se
+ return 0;
+ }
+
++static int devpts_filter(struct dentry *de)
++{
++ xid_t xid = 0;
++
++ /* devpts is xid tagged */
++ if (de && de->d_inode)
++ xid = (xid_t)de->d_inode->i_tag;
++#ifdef CONFIG_VSERVER_WARN_DEVPTS
++ else
++ vxwprintk_task(1, "devpts " VS_Q("%.*s") " without inode.",
++ de->d_name.len, de->d_name.name);
++#endif
++ return vx_check(xid, VS_WATCH_P | VS_IDENT);
++}
++
++static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir)
++{
++ return dcache_readdir_filter(filp, dirent, filldir, devpts_filter);
++}
++
++static struct file_operations devpts_dir_operations = {
++ .open = dcache_dir_open,
++ .release = dcache_dir_close,
++ .llseek = dcache_dir_lseek,
++ .read = generic_read_dir,
++ .readdir = devpts_readdir,
++};
++
+ static const struct super_operations devpts_sops = {
+ .statfs = simple_statfs,
+ .remount_fs = devpts_remount,
+@@ -302,12 +345,15 @@ devpts_fill_super(struct super_block *s,
+ inode = new_inode(s);
+ if (!inode)
+ goto free_fsi;
++
+ inode->i_ino = 1;
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+ inode->i_op = &simple_dir_inode_operations;
+- inode->i_fop = &simple_dir_operations;
++ inode->i_fop = &devpts_dir_operations;
+ inode->i_nlink = 2;
++ /* devpts is xid tagged */
++ inode->i_tag = (tag_t)vx_current_xid();
+
+ s->s_root = d_alloc_root(inode);
+ if (s->s_root)
+@@ -494,6 +540,9 @@ int devpts_pty_new(struct inode *ptmx_in
+ inode->i_gid = opts->setgid ? opts->gid : current_fsgid();
+ inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ init_special_inode(inode, S_IFCHR|opts->mode, device);
++ /* devpts is xid tagged */
++ inode->i_tag = (tag_t)vx_current_xid();
++ inode->i_op = &devpts_file_inode_operations;
+ inode->i_private = tty;
+ tty->driver_data = inode;
+
+diff -NurpP --minimal linux-3.0.9/fs/ext2/balloc.c linux-3.0.9-vs2.3.2.1/fs/ext2/balloc.c
+--- linux-3.0.9/fs/ext2/balloc.c 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/balloc.c 2011-06-10 22:11:24.000000000 +0200
+@@ -701,7 +701,6 @@ ext2_try_to_allocate(struct super_block
+ start = 0;
+ end = EXT2_BLOCKS_PER_GROUP(sb);
+ }
+-
+ BUG_ON(start > EXT2_BLOCKS_PER_GROUP(sb));
+
+ repeat:
+diff -NurpP --minimal linux-3.0.9/fs/ext2/ext2.h linux-3.0.9-vs2.3.2.1/fs/ext2/ext2.h
+--- linux-3.0.9/fs/ext2/ext2.h 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/ext2.h 2011-06-10 22:11:24.000000000 +0200
+@@ -126,6 +126,7 @@ extern void ext2_set_inode_flags(struct
+ extern void ext2_get_inode_flags(struct ext2_inode_info *);
+ extern int ext2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ u64 start, u64 len);
++extern int ext2_sync_flags(struct inode *, int, int);
+
+ /* ioctl.c */
+ extern long ext2_ioctl(struct file *, unsigned int, unsigned long);
+diff -NurpP --minimal linux-3.0.9/fs/ext2/file.c linux-3.0.9-vs2.3.2.1/fs/ext2/file.c
+--- linux-3.0.9/fs/ext2/file.c 2010-08-02 16:52:48.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -104,4 +104,5 @@ const struct inode_operations ext2_file_
+ .setattr = ext2_setattr,
+ .check_acl = ext2_check_acl,
+ .fiemap = ext2_fiemap,
++ .sync_flags = ext2_sync_flags,
+ };
+diff -NurpP --minimal linux-3.0.9/fs/ext2/ialloc.c linux-3.0.9-vs2.3.2.1/fs/ext2/ialloc.c
+--- linux-3.0.9/fs/ext2/ialloc.c 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/ialloc.c 2011-06-10 22:11:24.000000000 +0200
+@@ -17,6 +17,7 @@
+ #include <linux/backing-dev.h>
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -549,6 +550,7 @@ got:
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = dir->i_gid;
++ inode->i_tag = dx_current_fstag(sb);
+ } else
+ inode_init_owner(inode, dir, mode);
+
+diff -NurpP --minimal linux-3.0.9/fs/ext2/inode.c linux-3.0.9-vs2.3.2.1/fs/ext2/inode.c
+--- linux-3.0.9/fs/ext2/inode.c 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -32,6 +32,7 @@
+ #include <linux/mpage.h>
+ #include <linux/fiemap.h>
+ #include <linux/namei.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "acl.h"
+ #include "xip.h"
+@@ -1167,7 +1168,7 @@ static void ext2_truncate_blocks(struct
+ return;
+ if (ext2_inode_is_fast_symlink(inode))
+ return;
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return;
+ __ext2_truncate_blocks(inode, offset);
+ }
+@@ -1256,36 +1257,61 @@ void ext2_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT2_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++
++ if (flags & EXT2_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT2_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT2_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT2_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT2_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT2_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT2_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT2_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT2_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT2_I(inode)->i_flags */
+ void ext2_get_inode_flags(struct ext2_inode_info *ei)
+ {
+ unsigned int flags = ei->vfs_inode.i_flags;
++ unsigned int vflags = ei->vfs_inode.i_vflags;
++
++ ei->i_flags &= ~(EXT2_SYNC_FL | EXT2_APPEND_FL |
++ EXT2_IMMUTABLE_FL | EXT2_IXUNLINK_FL |
++ EXT2_NOATIME_FL | EXT2_DIRSYNC_FL |
++ EXT2_BARRIER_FL | EXT2_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ ei->i_flags |= EXT2_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ ei->i_flags |= EXT2_IXUNLINK_FL;
+
+- ei->i_flags &= ~(EXT2_SYNC_FL|EXT2_APPEND_FL|
+- EXT2_IMMUTABLE_FL|EXT2_NOATIME_FL|EXT2_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ ei->i_flags |= EXT2_SYNC_FL;
+ if (flags & S_APPEND)
+ ei->i_flags |= EXT2_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- ei->i_flags |= EXT2_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ ei->i_flags |= EXT2_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ ei->i_flags |= EXT2_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ ei->i_flags |= EXT2_BARRIER_FL;
++ if (vflags & V_COW)
++ ei->i_flags |= EXT2_COW_FL;
+ }
+
+ struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
+@@ -1295,6 +1321,8 @@ struct inode *ext2_iget (struct super_bl
+ struct ext2_inode *raw_inode;
+ struct inode *inode;
+ long ret = -EIO;
++ uid_t uid;
++ gid_t gid;
+ int n;
+
+ inode = iget_locked(sb, ino);
+@@ -1313,12 +1341,17 @@ struct inode *ext2_iget (struct super_bl
+ }
+
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if (!(test_opt (inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
++
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ inode->i_size = le32_to_cpu(raw_inode->i_size);
+ inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
+@@ -1416,8 +1449,8 @@ static int __ext2_write_inode(struct ino
+ struct ext2_inode_info *ei = EXT2_I(inode);
+ struct super_block *sb = inode->i_sb;
+ ino_t ino = inode->i_ino;
+- uid_t uid = inode->i_uid;
+- gid_t gid = inode->i_gid;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ struct buffer_head * bh;
+ struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh);
+ int n;
+@@ -1453,6 +1486,9 @@ static int __ext2_write_inode(struct ino
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ raw_inode->i_size = cpu_to_le32(inode->i_size);
+ raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -1533,7 +1569,8 @@ int ext2_setattr(struct dentry *dentry,
+ if (is_quota_modification(inode, iattr))
+ dquot_initialize(inode);
+ if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
+ error = dquot_transfer(inode, iattr);
+ if (error)
+ return error;
+diff -NurpP --minimal linux-3.0.9/fs/ext2/ioctl.c linux-3.0.9-vs2.3.2.1/fs/ext2/ioctl.c
+--- linux-3.0.9/fs/ext2/ioctl.c 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -17,6 +17,16 @@
+ #include <asm/uaccess.h>
+
+
++int ext2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext2_get_inode_flags(EXT2_I(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ long ext2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -51,6 +61,11 @@ long ext2_ioctl(struct file *filp, unsig
+
+ flags = ext2_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+@@ -66,7 +81,9 @@ long ext2_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
++ if ((oldflags & EXT2_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT2_APPEND_FL |
++ EXT2_IMMUTABLE_FL | EXT2_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ mutex_unlock(&inode->i_mutex);
+ ret = -EPERM;
+@@ -74,7 +91,7 @@ long ext2_ioctl(struct file *filp, unsig
+ }
+ }
+
+- flags = flags & EXT2_FL_USER_MODIFIABLE;
++ flags &= EXT2_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~EXT2_FL_USER_MODIFIABLE;
+ ei->i_flags = flags;
+ mutex_unlock(&inode->i_mutex);
+diff -NurpP --minimal linux-3.0.9/fs/ext2/namei.c linux-3.0.9-vs2.3.2.1/fs/ext2/namei.c
+--- linux-3.0.9/fs/ext2/namei.c 2011-05-22 16:17:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/namei.c 2011-06-10 22:11:24.000000000 +0200
+@@ -32,6 +32,7 @@
+
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -75,6 +76,7 @@ static struct dentry *ext2_lookup(struct
+ return ERR_PTR(-EIO);
+ } else {
+ return ERR_CAST(inode);
++ dx_propagate_tag(nd, inode);
+ }
+ }
+ }
+@@ -413,6 +415,7 @@ const struct inode_operations ext2_dir_i
+ #endif
+ .setattr = ext2_setattr,
+ .check_acl = ext2_check_acl,
++ .sync_flags = ext2_sync_flags,
+ };
+
+ const struct inode_operations ext2_special_inode_operations = {
+diff -NurpP --minimal linux-3.0.9/fs/ext2/super.c linux-3.0.9-vs2.3.2.1/fs/ext2/super.c
+--- linux-3.0.9/fs/ext2/super.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext2/super.c 2011-06-10 22:11:24.000000000 +0200
+@@ -394,7 +394,8 @@ enum {
+ Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug,
+ Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
+ Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota,
+- Opt_usrquota, Opt_grpquota, Opt_reservation, Opt_noreservation
++ Opt_usrquota, Opt_grpquota, Opt_reservation, Opt_noreservation,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -422,6 +423,9 @@ static const match_table_t tokens = {
+ {Opt_acl, "acl"},
+ {Opt_noacl, "noacl"},
+ {Opt_xip, "xip"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_grpquota, "grpquota"},
+ {Opt_ignore, "noquota"},
+ {Opt_quota, "quota"},
+@@ -492,6 +496,20 @@ static int parse_options(char *options,
+ case Opt_nouid32:
+ set_opt (sbi->s_mount_opt, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_nocheck:
+ clear_opt (sbi->s_mount_opt, CHECK);
+ break;
+@@ -850,6 +868,8 @@ static int ext2_fill_super(struct super_
+ if (!parse_options((char *) data, sb))
+ goto failed_mount;
+
++ if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
+ MS_POSIXACL : 0);
+@@ -1224,6 +1244,14 @@ static int ext2_remount (struct super_bl
+ goto restore_opts;
+ }
+
++ if ((sbi->s_mount_opt & EXT2_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT2-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-3.0.9/fs/ext3/file.c linux-3.0.9-vs2.3.2.1/fs/ext3/file.c
+--- linux-3.0.9/fs/ext3/file.c 2010-07-07 18:31:51.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -81,5 +81,6 @@ const struct inode_operations ext3_file_
+ #endif
+ .check_acl = ext3_check_acl,
+ .fiemap = ext3_fiemap,
++ .sync_flags = ext3_sync_flags,
+ };
+
+diff -NurpP --minimal linux-3.0.9/fs/ext3/ialloc.c linux-3.0.9-vs2.3.2.1/fs/ext3/ialloc.c
+--- linux-3.0.9/fs/ext3/ialloc.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/ialloc.c 2011-06-10 22:11:24.000000000 +0200
+@@ -23,6 +23,7 @@
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
+ #include <linux/bitops.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/byteorder.h>
+
+@@ -532,6 +533,7 @@ got:
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = dir->i_gid;
++ inode->i_tag = dx_current_fstag(sb);
+ } else
+ inode_init_owner(inode, dir, mode);
+
+diff -NurpP --minimal linux-3.0.9/fs/ext3/inode.c linux-3.0.9-vs2.3.2.1/fs/ext3/inode.c
+--- linux-3.0.9/fs/ext3/inode.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -38,6 +38,7 @@
+ #include <linux/bio.h>
+ #include <linux/fiemap.h>
+ #include <linux/namei.h>
++#include <linux/vs_tag.h>
+ #include "xattr.h"
+ #include "acl.h"
+
+@@ -2391,7 +2392,7 @@ static void ext3_free_branches(handle_t
+
+ int ext3_can_truncate(struct inode *inode)
+ {
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return 0;
+ if (S_ISREG(inode->i_mode))
+ return 1;
+@@ -2775,36 +2776,60 @@ void ext3_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT3_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++ if (flags & EXT3_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT3_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT3_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT3_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT3_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT3_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT3_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT3_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT3_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT3_I(inode)->i_flags */
+ void ext3_get_inode_flags(struct ext3_inode_info *ei)
+ {
+ unsigned int flags = ei->vfs_inode.i_flags;
++ unsigned int vflags = ei->vfs_inode.i_vflags;
++
++ ei->i_flags &= ~(EXT3_SYNC_FL | EXT3_APPEND_FL |
++ EXT3_IMMUTABLE_FL | EXT3_IXUNLINK_FL |
++ EXT3_NOATIME_FL | EXT3_DIRSYNC_FL |
++ EXT3_BARRIER_FL | EXT3_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ ei->i_flags |= EXT3_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ ei->i_flags |= EXT3_IXUNLINK_FL;
+
+- ei->i_flags &= ~(EXT3_SYNC_FL|EXT3_APPEND_FL|
+- EXT3_IMMUTABLE_FL|EXT3_NOATIME_FL|EXT3_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ ei->i_flags |= EXT3_SYNC_FL;
+ if (flags & S_APPEND)
+ ei->i_flags |= EXT3_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- ei->i_flags |= EXT3_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ ei->i_flags |= EXT3_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ ei->i_flags |= EXT3_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ ei->i_flags |= EXT3_BARRIER_FL;
++ if (vflags & V_COW)
++ ei->i_flags |= EXT3_COW_FL;
+ }
+
+ struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
+@@ -2818,6 +2843,8 @@ struct inode *ext3_iget(struct super_blo
+ transaction_t *transaction;
+ long ret;
+ int block;
++ uid_t uid;
++ gid_t gid;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+@@ -2834,12 +2861,17 @@ struct inode *ext3_iget(struct super_blo
+ bh = iloc.bh;
+ raw_inode = ext3_raw_inode(&iloc);
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if(!(test_opt (inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
++
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ inode->i_size = le32_to_cpu(raw_inode->i_size);
+ inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
+@@ -2994,6 +3026,8 @@ static int ext3_do_update_inode(handle_t
+ struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
+ struct ext3_inode_info *ei = EXT3_I(inode);
+ struct buffer_head *bh = iloc->bh;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ int err = 0, rc, block;
+
+ again:
+@@ -3008,29 +3042,32 @@ again:
+ ext3_get_inode_flags(ei);
+ raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+ if(!(test_opt(inode->i_sb, NO_UID32))) {
+- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
+ /*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+ if(!ei->i_dtime) {
+ raw_inode->i_uid_high =
+- cpu_to_le16(high_16_bits(inode->i_uid));
++ cpu_to_le16(high_16_bits(uid));
+ raw_inode->i_gid_high =
+- cpu_to_le16(high_16_bits(inode->i_gid));
++ cpu_to_le16(high_16_bits(gid));
+ } else {
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
+ } else {
+ raw_inode->i_uid_low =
+- cpu_to_le16(fs_high2lowuid(inode->i_uid));
++ cpu_to_le16(fs_high2lowuid(uid));
+ raw_inode->i_gid_low =
+- cpu_to_le16(fs_high2lowgid(inode->i_gid));
++ cpu_to_le16(fs_high2lowgid(gid));
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ raw_inode->i_size = cpu_to_le32(ei->i_disksize);
+ raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -3190,7 +3227,8 @@ int ext3_setattr(struct dentry *dentry,
+ if (is_quota_modification(inode, attr))
+ dquot_initialize(inode);
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ handle_t *handle;
+
+ /* (user+group)*(old+new) structure, inode write (sb,
+@@ -3212,6 +3250,8 @@ int ext3_setattr(struct dentry *dentry,
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ error = ext3_mark_inode_dirty(handle, inode);
+ ext3_journal_stop(handle);
+ }
+diff -NurpP --minimal linux-3.0.9/fs/ext3/ioctl.c linux-3.0.9-vs2.3.2.1/fs/ext3/ioctl.c
+--- linux-3.0.9/fs/ext3/ioctl.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -8,6 +8,7 @@
+ */
+
+ #include <linux/fs.h>
++#include <linux/mount.h>
+ #include <linux/jbd.h>
+ #include <linux/capability.h>
+ #include <linux/ext3_fs.h>
+@@ -17,6 +18,34 @@
+ #include <linux/compat.h>
+ #include <asm/uaccess.h>
+
++
++int ext3_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ handle_t *handle = NULL;
++ struct ext3_iloc iloc;
++ int err;
++
++ handle = ext3_journal_start(inode, 1);
++ if (IS_ERR(handle))
++ return PTR_ERR(handle);
++
++ if (IS_SYNC(inode))
++ handle->h_sync = 1;
++ err = ext3_reserve_inode_write(handle, inode, &iloc);
++ if (err)
++ goto flags_err;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext3_get_inode_flags(EXT3_I(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++
++ err = ext3_mark_iloc_dirty(handle, inode, &iloc);
++flags_err:
++ ext3_journal_stop(handle);
++ return err;
++}
++
+ long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -50,6 +79,11 @@ long ext3_ioctl(struct file *filp, unsig
+
+ flags = ext3_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ mutex_lock(&inode->i_mutex);
+
+ /* Is it quota file? Do not allow user to mess with it */
+@@ -68,7 +102,9 @@ long ext3_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
++ if ((oldflags & EXT3_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT3_APPEND_FL |
++ EXT3_IMMUTABLE_FL | EXT3_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE))
+ goto flags_out;
+ }
+@@ -93,7 +129,7 @@ long ext3_ioctl(struct file *filp, unsig
+ if (err)
+ goto flags_err;
+
+- flags = flags & EXT3_FL_USER_MODIFIABLE;
++ flags &= EXT3_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
+ ei->i_flags = flags;
+
+diff -NurpP --minimal linux-3.0.9/fs/ext3/namei.c linux-3.0.9-vs2.3.2.1/fs/ext3/namei.c
+--- linux-3.0.9/fs/ext3/namei.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/namei.c 2011-08-29 03:45:09.000000000 +0200
+@@ -36,6 +36,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
+ #include <linux/bio.h>
++#include <linux/vs_tag.h>
+
+ #include "namei.h"
+ #include "xattr.h"
+@@ -923,6 +924,7 @@ restart:
+ if (bh)
+ ll_rw_block(READ_META, 1, &bh);
+ }
++ dx_propagate_tag(nd, inode);
+ }
+ if ((bh = bh_use[ra_ptr++]) == NULL)
+ goto next;
+@@ -2536,6 +2538,7 @@ const struct inode_operations ext3_dir_i
+ .removexattr = generic_removexattr,
+ #endif
+ .check_acl = ext3_check_acl,
++ .sync_flags = ext3_sync_flags,
+ };
+
+ const struct inode_operations ext3_special_inode_operations = {
+diff -NurpP --minimal linux-3.0.9/fs/ext3/super.c linux-3.0.9-vs2.3.2.1/fs/ext3/super.c
+--- linux-3.0.9/fs/ext3/super.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext3/super.c 2011-06-10 22:11:24.000000000 +0200
+@@ -821,7 +821,8 @@ enum {
+ Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
+ Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err,
+- Opt_resize, Opt_usrquota, Opt_grpquota
++ Opt_resize, Opt_usrquota, Opt_grpquota,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -878,6 +879,9 @@ static const match_table_t tokens = {
+ {Opt_barrier, "barrier"},
+ {Opt_nobarrier, "nobarrier"},
+ {Opt_resize, "resize"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -1030,6 +1034,20 @@ static int parse_options (char *options,
+ case Opt_nouid32:
+ set_opt (sbi->s_mount_opt, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt (sbi->s_mount_opt, TAGGED);
++ break;
++#endif
+ case Opt_nocheck:
+ clear_opt (sbi->s_mount_opt, CHECK);
+ break;
+@@ -1724,6 +1742,9 @@ static int ext3_fill_super (struct super
+ NULL, 0))
+ goto failed_mount;
+
++ if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
+
+@@ -2604,6 +2625,14 @@ static int ext3_remount (struct super_bl
+ if (test_opt(sb, ABORT))
+ ext3_abort(sb, __func__, "Abort forced by user");
+
++ if ((sbi->s_mount_opt & EXT3_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT3-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-3.0.9/fs/ext4/ext4.h linux-3.0.9-vs2.3.2.1/fs/ext4/ext4.h
+--- linux-3.0.9/fs/ext4/ext4.h 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/ext4.h 2011-11-15 17:37:06.000000000 +0100
+@@ -351,8 +351,12 @@ struct flex_groups {
+ #define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
+ #define EXT4_EA_INODE_FL 0x00200000 /* Inode used for large EA */
+ #define EXT4_EOFBLOCKS_FL 0x00400000 /* Blocks allocated beyond EOF */
++#define EXT4_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
+
++#define EXT4_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define EXT4_COW_FL 0x20000000 /* Copy on Write marker */
++
+ #define EXT4_FL_USER_VISIBLE 0x004BDFFF /* User visible flags */
+ #define EXT4_FL_USER_MODIFIABLE 0x004B80FF /* User modifiable flags */
+
+@@ -609,7 +613,8 @@ struct ext4_inode {
+ __le16 l_i_file_acl_high;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
+@@ -727,6 +732,7 @@ do { \
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+
+ #elif defined(__GNU__)
+@@ -903,6 +909,7 @@ struct ext4_inode_info {
+ #define EXT4_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
+ #define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000 /* No auto delalloc mapping */
+ #define EXT4_MOUNT_BARRIER 0x20000 /* Use block barriers */
++#define EXT4_MOUNT_TAGGED 0x40000 /* Enable Context Tags */
+ #define EXT4_MOUNT_QUOTA 0x80000 /* Some quota option set */
+ #define EXT4_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
+ #define EXT4_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
+@@ -2173,6 +2180,7 @@ extern int ext4_map_blocks(handle_t *han
+ struct ext4_map_blocks *map, int flags);
+ extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ __u64 start, __u64 len);
++extern int ext4_sync_flags(struct inode *, int, int);
+ /* move_extent.c */
+ extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
+ __u64 start_orig, __u64 start_donor,
+diff -NurpP --minimal linux-3.0.9/fs/ext4/file.c linux-3.0.9-vs2.3.2.1/fs/ext4/file.c
+--- linux-3.0.9/fs/ext4/file.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -282,5 +282,6 @@ const struct inode_operations ext4_file_
+ #endif
+ .check_acl = ext4_check_acl,
+ .fiemap = ext4_fiemap,
++ .sync_flags = ext4_sync_flags,
+ };
+
+diff -NurpP --minimal linux-3.0.9/fs/ext4/ialloc.c linux-3.0.9-vs2.3.2.1/fs/ext4/ialloc.c
+--- linux-3.0.9/fs/ext4/ialloc.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/ialloc.c 2011-06-10 22:11:24.000000000 +0200
+@@ -22,6 +22,7 @@
+ #include <linux/random.h>
+ #include <linux/bitops.h>
+ #include <linux/blkdev.h>
++#include <linux/vs_tag.h>
+ #include <asm/byteorder.h>
+
+ #include "ext4.h"
+@@ -992,6 +993,7 @@ got:
+ inode->i_mode = mode;
+ inode->i_uid = current_fsuid();
+ inode->i_gid = dir->i_gid;
++ inode->i_tag = dx_current_fstag(sb);
+ } else
+ inode_init_owner(inode, dir, mode);
+
+diff -NurpP --minimal linux-3.0.9/fs/ext4/inode.c linux-3.0.9-vs2.3.2.1/fs/ext4/inode.c
+--- linux-3.0.9/fs/ext4/inode.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/inode.c 2011-11-15 17:37:06.000000000 +0100
+@@ -42,6 +42,7 @@
+ #include <linux/printk.h>
+ #include <linux/slab.h>
+ #include <linux/ratelimit.h>
++#include <linux/vs_tag.h>
+
+ #include "ext4_jbd2.h"
+ #include "xattr.h"
+@@ -4816,41 +4817,64 @@ void ext4_set_inode_flags(struct inode *
+ {
+ unsigned int flags = EXT4_I(inode)->i_flags;
+
+- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++ if (flags & EXT4_IMMUTABLE_FL)
++ inode->i_flags |= S_IMMUTABLE;
++ if (flags & EXT4_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
+ if (flags & EXT4_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+ if (flags & EXT4_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+- if (flags & EXT4_IMMUTABLE_FL)
+- inode->i_flags |= S_IMMUTABLE;
+ if (flags & EXT4_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & EXT4_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & EXT4_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & EXT4_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to EXT4_I(inode)->i_flags */
+ void ext4_get_inode_flags(struct ext4_inode_info *ei)
+ {
+- unsigned int vfs_fl;
++ unsigned int vfs_fl, vfs_vf;
+ unsigned long old_fl, new_fl;
+
+ do {
+ vfs_fl = ei->vfs_inode.i_flags;
++ vfs_vf = ei->vfs_inode.i_vflags;
+ old_fl = ei->i_flags;
+ new_fl = old_fl & ~(EXT4_SYNC_FL|EXT4_APPEND_FL|
+ EXT4_IMMUTABLE_FL|EXT4_NOATIME_FL|
+- EXT4_DIRSYNC_FL);
++ EXT4_DIRSYNC_FL|EXT4_BARRIER_FL|
++ EXT4_COW_FL);
++
++ if (vfs_fl & S_IMMUTABLE)
++ new_fl |= EXT4_IMMUTABLE_FL;
++ if (vfs_fl & S_IXUNLINK)
++ new_fl |= EXT4_IXUNLINK_FL;
++
+ if (vfs_fl & S_SYNC)
+ new_fl |= EXT4_SYNC_FL;
+ if (vfs_fl & S_APPEND)
+ new_fl |= EXT4_APPEND_FL;
+- if (vfs_fl & S_IMMUTABLE)
+- new_fl |= EXT4_IMMUTABLE_FL;
+ if (vfs_fl & S_NOATIME)
+ new_fl |= EXT4_NOATIME_FL;
+ if (vfs_fl & S_DIRSYNC)
+ new_fl |= EXT4_DIRSYNC_FL;
++
++ if (vfs_vf & V_BARRIER)
++ new_fl |= EXT4_BARRIER_FL;
++ if (vfs_vf & V_COW)
++ new_fl |= EXT4_COW_FL;
+ } while (cmpxchg(&ei->i_flags, old_fl, new_fl) != old_fl);
+ }
+
+@@ -4886,6 +4910,8 @@ struct inode *ext4_iget(struct super_blo
+ journal_t *journal = EXT4_SB(sb)->s_journal;
+ long ret;
+ int block;
++ uid_t uid;
++ gid_t gid;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+@@ -4901,12 +4927,16 @@ struct inode *ext4_iget(struct super_blo
+ goto bad_inode;
+ raw_inode = ext4_raw_inode(&iloc);
+ inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ if (!(test_opt(inode->i_sb, NO_UID32))) {
+- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ le16_to_cpu(raw_inode->i_raw_tag));
+ inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+
+ ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
+@@ -5125,6 +5155,8 @@ static int ext4_do_update_inode(handle_t
+ struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct buffer_head *bh = iloc->bh;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ int err = 0, rc, block;
+
+ /* For fields not not tracking in the in-memory inode,
+@@ -5135,29 +5167,32 @@ static int ext4_do_update_inode(handle_t
+ ext4_get_inode_flags(ei);
+ raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+ if (!(test_opt(inode->i_sb, NO_UID32))) {
+- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
+ /*
+ * Fix up interoperability with old kernels. Otherwise, old inodes get
+ * re-used with the upper 16 bits of the uid/gid intact
+ */
+ if (!ei->i_dtime) {
+ raw_inode->i_uid_high =
+- cpu_to_le16(high_16_bits(inode->i_uid));
++ cpu_to_le16(high_16_bits(uid));
+ raw_inode->i_gid_high =
+- cpu_to_le16(high_16_bits(inode->i_gid));
++ cpu_to_le16(high_16_bits(gid));
+ } else {
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
+ } else {
+ raw_inode->i_uid_low =
+- cpu_to_le16(fs_high2lowuid(inode->i_uid));
++ cpu_to_le16(fs_high2lowuid(uid));
+ raw_inode->i_gid_low =
+- cpu_to_le16(fs_high2lowgid(inode->i_gid));
++ cpu_to_le16(fs_high2lowgid(gid));
+ raw_inode->i_uid_high = 0;
+ raw_inode->i_gid_high = 0;
+ }
++#ifdef CONFIG_TAGGING_INTERN
++ raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
++#endif
+ raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+
+ EXT4_INODE_SET_XTIME(i_ctime, inode, raw_inode);
+@@ -5343,7 +5378,8 @@ int ext4_setattr(struct dentry *dentry,
+ if (is_quota_modification(inode, attr))
+ dquot_initialize(inode);
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ handle_t *handle;
+
+ /* (user+group)*(old+new) structure, inode write (sb,
+@@ -5365,6 +5401,8 @@ int ext4_setattr(struct dentry *dentry,
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ error = ext4_mark_inode_dirty(handle, inode);
+ ext4_journal_stop(handle);
+ }
+diff -NurpP --minimal linux-3.0.9/fs/ext4/ioctl.c linux-3.0.9-vs2.3.2.1/fs/ext4/ioctl.c
+--- linux-3.0.9/fs/ext4/ioctl.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -14,10 +14,39 @@
+ #include <linux/compat.h>
+ #include <linux/mount.h>
+ #include <linux/file.h>
++#include <linux/vs_tag.h>
+ #include <asm/uaccess.h>
+ #include "ext4_jbd2.h"
+ #include "ext4.h"
+
++
++int ext4_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ handle_t *handle = NULL;
++ struct ext4_iloc iloc;
++ int err;
++
++ handle = ext4_journal_start(inode, 1);
++ if (IS_ERR(handle))
++ return PTR_ERR(handle);
++
++ if (IS_SYNC(inode))
++ ext4_handle_sync(handle);
++ err = ext4_reserve_inode_write(handle, inode, &iloc);
++ if (err)
++ goto flags_err;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ext4_get_inode_flags(EXT4_I(inode));
++ inode->i_ctime = ext4_current_time(inode);
++
++ err = ext4_mark_iloc_dirty(handle, inode, &iloc);
++flags_err:
++ ext4_journal_stop(handle);
++ return err;
++}
++
+ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -50,6 +79,11 @@ long ext4_ioctl(struct file *filp, unsig
+
+ flags = ext4_mask_flags(inode->i_mode, flags);
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ err = -EPERM;
+ mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+@@ -67,7 +101,9 @@ long ext4_ioctl(struct file *filp, unsig
+ *
+ * This test looks nicer. Thanks to Pauline Middelink
+ */
+- if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
++ if ((oldflags & EXT4_IMMUTABLE_FL) ||
++ ((flags ^ oldflags) & (EXT4_APPEND_FL |
++ EXT4_IMMUTABLE_FL | EXT4_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE))
+ goto flags_out;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/ext4/namei.c linux-3.0.9-vs2.3.2.1/fs/ext4/namei.c
+--- linux-3.0.9/fs/ext4/namei.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/namei.c 2011-11-15 17:37:06.000000000 +0100
+@@ -34,6 +34,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
+ #include <linux/bio.h>
++#include <linux/vs_tag.h>
+ #include "ext4.h"
+ #include "ext4_jbd2.h"
+
+@@ -924,6 +925,7 @@ restart:
+ if (bh)
+ ll_rw_block(READ_META, 1, &bh);
+ }
++ dx_propagate_tag(nd, inode);
+ }
+ if ((bh = bh_use[ra_ptr++]) == NULL)
+ goto next;
+@@ -2598,6 +2600,7 @@ const struct inode_operations ext4_dir_i
+ #endif
+ .check_acl = ext4_check_acl,
+ .fiemap = ext4_fiemap,
++ .sync_flags = ext4_sync_flags,
+ };
+
+ const struct inode_operations ext4_special_inode_operations = {
+diff -NurpP --minimal linux-3.0.9/fs/ext4/super.c linux-3.0.9-vs2.3.2.1/fs/ext4/super.c
+--- linux-3.0.9/fs/ext4/super.c 2011-11-15 16:40:46.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ext4/super.c 2011-08-31 19:37:44.000000000 +0200
+@@ -1293,6 +1293,7 @@ enum {
+ Opt_dioread_nolock, Opt_dioread_lock,
+ Opt_discard, Opt_nodiscard,
+ Opt_init_inode_table, Opt_noinit_inode_table,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -1368,6 +1369,9 @@ static const match_table_t tokens = {
+ {Opt_init_inode_table, "init_itable=%u"},
+ {Opt_init_inode_table, "init_itable"},
+ {Opt_noinit_inode_table, "noinit_itable"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL},
+ };
+
+@@ -1536,6 +1540,20 @@ static int parse_options(char *options,
+ case Opt_nouid32:
+ set_opt(sb, NO_UID32);
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ set_opt(sb, TAGGED);
++ break;
++ case Opt_notag:
++ clear_opt(sb, TAGGED);
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ set_opt(sb, TAGGED);
++ break;
++#endif
+ case Opt_debug:
+ set_opt(sb, DEBUG);
+ break;
+@@ -3193,6 +3211,9 @@ static int ext4_fill_super(struct super_
+ &journal_ioprio, NULL, 0))
+ goto failed_mount;
+
++ if (EXT4_SB(sb)->s_mount_opt & EXT4_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
+
+@@ -4323,6 +4344,14 @@ static int ext4_remount(struct super_blo
+ if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED)
+ ext4_abort(sb, "Abort forced by user");
+
++ if ((sbi->s_mount_opt & EXT4_MOUNT_TAGGED) &&
++ !(sb->s_flags & MS_TAGGED)) {
++ printk("EXT4-fs: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ err = -EINVAL;
++ goto restore_opts;
++ }
++
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
+
+diff -NurpP --minimal linux-3.0.9/fs/fcntl.c linux-3.0.9-vs2.3.2.1/fs/fcntl.c
+--- linux-3.0.9/fs/fcntl.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/fcntl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -20,6 +20,7 @@
+ #include <linux/signal.h>
+ #include <linux/rcupdate.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/poll.h>
+ #include <asm/siginfo.h>
+@@ -103,6 +104,8 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldf
+
+ if (tofree)
+ filp_close(tofree, files);
++ else
++ vx_openfd_inc(newfd); /* fd was unused */
+
+ return newfd;
+
+@@ -447,6 +450,8 @@ SYSCALL_DEFINE3(fcntl, unsigned int, fd,
+ filp = fget_raw(fd);
+ if (!filp)
+ goto out;
++ if (!vx_files_avail(1))
++ goto out;
+
+ if (unlikely(filp->f_mode & FMODE_PATH)) {
+ if (!check_fcntl_cmd(cmd)) {
+diff -NurpP --minimal linux-3.0.9/fs/file.c linux-3.0.9-vs2.3.2.1/fs/file.c
+--- linux-3.0.9/fs/file.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -21,6 +21,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/rcupdate.h>
+ #include <linux/workqueue.h>
++#include <linux/vs_limit.h>
+
+ struct fdtable_defer {
+ spinlock_t lock;
+@@ -359,6 +360,8 @@ struct files_struct *dup_fd(struct files
+ struct file *f = *old_fds++;
+ if (f) {
+ get_file(f);
++ /* TODO: sum it first for check and performance */
++ vx_openfd_inc(open_files - i);
+ } else {
+ /*
+ * The fd may be claimed in the fd bitmap but not yet
+@@ -466,6 +469,7 @@ repeat:
+ else
+ FD_CLR(fd, fdt->close_on_exec);
+ error = fd;
++ vx_openfd_inc(fd);
+ #if 1
+ /* Sanity check */
+ if (rcu_dereference_raw(fdt->fd[fd]) != NULL) {
+diff -NurpP --minimal linux-3.0.9/fs/file_table.c linux-3.0.9-vs2.3.2.1/fs/file_table.c
+--- linux-3.0.9/fs/file_table.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/file_table.c 2011-06-10 22:11:24.000000000 +0200
+@@ -24,6 +24,8 @@
+ #include <linux/percpu_counter.h>
+ #include <linux/percpu.h>
+ #include <linux/ima.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
+
+ #include <asm/atomic.h>
+
+@@ -135,6 +137,8 @@ struct file *get_empty_filp(void)
+ spin_lock_init(&f->f_lock);
+ eventpoll_init_file(f);
+ /* f->f_version: 0 */
++ f->f_xid = vx_current_xid();
++ vx_files_inc(f);
+ return f;
+
+ over:
+@@ -253,6 +257,8 @@ static void __fput(struct file *file)
+ }
+ fops_put(file->f_op);
+ put_pid(file->f_owner.pid);
++ vx_files_dec(file);
++ file->f_xid = 0;
+ file_sb_list_del(file);
+ if ((file->f_mode & (FMODE_READ | FMODE_WRITE)) == FMODE_READ)
+ i_readcount_dec(inode);
+@@ -383,6 +389,8 @@ void put_filp(struct file *file)
+ {
+ if (atomic_long_dec_and_test(&file->f_count)) {
+ security_file_free(file);
++ vx_files_dec(file);
++ file->f_xid = 0;
+ file_sb_list_del(file);
+ file_free(file);
+ }
+diff -NurpP --minimal linux-3.0.9/fs/fs_struct.c linux-3.0.9-vs2.3.2.1/fs/fs_struct.c
+--- linux-3.0.9/fs/fs_struct.c 2011-03-15 18:07:31.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/fs_struct.c 2011-06-10 22:11:24.000000000 +0200
+@@ -4,6 +4,7 @@
+ #include <linux/path.h>
+ #include <linux/slab.h>
+ #include <linux/fs_struct.h>
++#include <linux/vserver/global.h>
+ #include "internal.h"
+
+ static inline void path_get_longterm(struct path *path)
+@@ -96,6 +97,7 @@ void free_fs_struct(struct fs_struct *fs
+ {
+ path_put_longterm(&fs->root);
+ path_put_longterm(&fs->pwd);
++ atomic_dec(&vs_global_fs);
+ kmem_cache_free(fs_cachep, fs);
+ }
+
+@@ -135,6 +137,7 @@ struct fs_struct *copy_fs_struct(struct
+ fs->pwd = old->pwd;
+ path_get_longterm(&fs->pwd);
+ spin_unlock(&old->lock);
++ atomic_inc(&vs_global_fs);
+ }
+ return fs;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/gfs2/file.c linux-3.0.9-vs2.3.2.1/fs/gfs2/file.c
+--- linux-3.0.9/fs/gfs2/file.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/gfs2/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -134,6 +134,9 @@ static const u32 fsflags_to_gfs2[32] = {
+ [7] = GFS2_DIF_NOATIME,
+ [12] = GFS2_DIF_EXHASH,
+ [14] = GFS2_DIF_INHERIT_JDATA,
++ [27] = GFS2_DIF_IXUNLINK,
++ [26] = GFS2_DIF_BARRIER,
++ [29] = GFS2_DIF_COW,
+ };
+
+ static const u32 gfs2_to_fsflags[32] = {
+@@ -143,6 +146,9 @@ static const u32 gfs2_to_fsflags[32] = {
+ [gfs2fl_NoAtime] = FS_NOATIME_FL,
+ [gfs2fl_ExHash] = FS_INDEX_FL,
+ [gfs2fl_InheritJdata] = FS_JOURNAL_DATA_FL,
++ [gfs2fl_IXUnlink] = FS_IXUNLINK_FL,
++ [gfs2fl_Barrier] = FS_BARRIER_FL,
++ [gfs2fl_Cow] = FS_COW_FL,
+ };
+
+ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
+@@ -173,10 +179,16 @@ void gfs2_set_inode_flags(struct inode *
+ {
+ struct gfs2_inode *ip = GFS2_I(inode);
+ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+- flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+ if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
+ flags |= S_IMMUTABLE;
++ if (ip->i_diskflags & GFS2_DIF_IXUNLINK)
++ flags |= S_IXUNLINK;
++
+ if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
+ flags |= S_APPEND;
+ if (ip->i_diskflags & GFS2_DIF_NOATIME)
+@@ -184,6 +196,43 @@ void gfs2_set_inode_flags(struct inode *
+ if (ip->i_diskflags & GFS2_DIF_SYNC)
+ flags |= S_SYNC;
+ inode->i_flags = flags;
++
++ vflags &= ~(V_BARRIER | V_COW);
++
++ if (ip->i_diskflags & GFS2_DIF_BARRIER)
++ vflags |= V_BARRIER;
++ if (ip->i_diskflags & GFS2_DIF_COW)
++ vflags |= V_COW;
++ inode->i_vflags = vflags;
++}
++
++void gfs2_get_inode_flags(struct inode *inode)
++{
++ struct gfs2_inode *ip = GFS2_I(inode);
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ ip->i_diskflags &= ~(GFS2_DIF_APPENDONLY |
++ GFS2_DIF_NOATIME | GFS2_DIF_SYNC |
++ GFS2_DIF_IMMUTABLE | GFS2_DIF_IXUNLINK |
++ GFS2_DIF_BARRIER | GFS2_DIF_COW);
++
++ if (flags & S_IMMUTABLE)
++ ip->i_diskflags |= GFS2_DIF_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->i_diskflags |= GFS2_DIF_IXUNLINK;
++
++ if (flags & S_APPEND)
++ ip->i_diskflags |= GFS2_DIF_APPENDONLY;
++ if (flags & S_NOATIME)
++ ip->i_diskflags |= GFS2_DIF_NOATIME;
++ if (flags & S_SYNC)
++ ip->i_diskflags |= GFS2_DIF_SYNC;
++
++ if (vflags & V_BARRIER)
++ ip->i_diskflags |= GFS2_DIF_BARRIER;
++ if (vflags & V_COW)
++ ip->i_diskflags |= GFS2_DIF_COW;
+ }
+
+ /* Flags that can be set by user space */
+@@ -295,6 +344,37 @@ static int gfs2_set_flags(struct file *f
+ return do_gfs2_set_flags(filp, gfsflags, ~GFS2_DIF_JDATA);
+ }
+
++int gfs2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct gfs2_inode *ip = GFS2_I(inode);
++ struct gfs2_sbd *sdp = GFS2_SB(inode);
++ struct buffer_head *bh;
++ struct gfs2_holder gh;
++ int error;
++
++ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
++ if (error)
++ return error;
++ error = gfs2_trans_begin(sdp, RES_DINODE, 0);
++ if (error)
++ goto out;
++ error = gfs2_meta_inode_buffer(ip, &bh);
++ if (error)
++ goto out_trans_end;
++ gfs2_trans_add_bh(ip->i_gl, bh, 1);
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ gfs2_get_inode_flags(inode);
++ gfs2_dinode_out(ip, bh->b_data);
++ brelse(bh);
++ gfs2_set_aops(inode);
++out_trans_end:
++ gfs2_trans_end(sdp);
++out:
++ gfs2_glock_dq_uninit(&gh);
++ return error;
++}
++
+ static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ switch(cmd) {
+diff -NurpP --minimal linux-3.0.9/fs/gfs2/inode.h linux-3.0.9-vs2.3.2.1/fs/gfs2/inode.h
+--- linux-3.0.9/fs/gfs2/inode.h 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/gfs2/inode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -120,6 +120,7 @@ extern const struct file_operations gfs2
+ extern const struct file_operations gfs2_dir_fops_nolock;
+
+ extern void gfs2_set_inode_flags(struct inode *inode);
++extern int gfs2_sync_flags(struct inode *inode, int flags, int vflags);
+
+ #ifdef CONFIG_GFS2_FS_LOCKING_DLM
+ extern const struct file_operations gfs2_file_fops;
+diff -NurpP --minimal linux-3.0.9/fs/inode.c linux-3.0.9-vs2.3.2.1/fs/inode.c
+--- linux-3.0.9/fs/inode.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/inode.c 2011-07-01 11:35:34.000000000 +0200
+@@ -26,6 +26,7 @@
+ #include <linux/ima.h>
+ #include <linux/cred.h>
+ #include <linux/buffer_head.h> /* for inode_has_buffers */
++#include <linux/vs_tag.h>
+ #include "internal.h"
+
+ /*
+@@ -146,6 +147,9 @@ int inode_init_always(struct super_block
+ struct address_space *const mapping = &inode->i_data;
+
+ inode->i_sb = sb;
++
++ /* essential because of inode slab reuse */
++ inode->i_tag = 0;
+ inode->i_blkbits = sb->s_blocksize_bits;
+ inode->i_flags = 0;
+ atomic_set(&inode->i_count, 1);
+@@ -166,6 +170,7 @@ int inode_init_always(struct super_block
+ inode->i_bdev = NULL;
+ inode->i_cdev = NULL;
+ inode->i_rdev = 0;
++ inode->i_mdev = 0;
+ inode->dirtied_when = 0;
+
+ if (security_inode_alloc(inode))
+@@ -404,6 +409,8 @@ void __insert_inode_hash(struct inode *i
+ }
+ EXPORT_SYMBOL(__insert_inode_hash);
+
++EXPORT_SYMBOL_GPL(__iget);
++
+ /**
+ * remove_inode_hash - remove an inode from the hash
+ * @inode: inode to unhash
+@@ -1643,9 +1650,11 @@ void init_special_inode(struct inode *in
+ if (S_ISCHR(mode)) {
+ inode->i_fop = &def_chr_fops;
+ inode->i_rdev = rdev;
++ inode->i_mdev = rdev;
+ } else if (S_ISBLK(mode)) {
+ inode->i_fop = &def_blk_fops;
+ inode->i_rdev = rdev;
++ inode->i_mdev = rdev;
+ } else if (S_ISFIFO(mode))
+ inode->i_fop = &def_fifo_fops;
+ else if (S_ISSOCK(mode))
+@@ -1674,6 +1683,7 @@ void inode_init_owner(struct inode *inod
+ } else
+ inode->i_gid = current_fsgid();
+ inode->i_mode = mode;
++ inode->i_tag = dx_current_fstag(inode->i_sb);
+ }
+ EXPORT_SYMBOL(inode_init_owner);
+
+diff -NurpP --minimal linux-3.0.9/fs/ioctl.c linux-3.0.9-vs2.3.2.1/fs/ioctl.c
+--- linux-3.0.9/fs/ioctl.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -15,6 +15,9 @@
+ #include <linux/writeback.h>
+ #include <linux/buffer_head.h>
+ #include <linux/falloc.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/ioctls.h>
+
+diff -NurpP --minimal linux-3.0.9/fs/ioprio.c linux-3.0.9-vs2.3.2.1/fs/ioprio.c
+--- linux-3.0.9/fs/ioprio.c 2011-01-05 21:50:24.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ioprio.c 2011-06-10 22:11:24.000000000 +0200
+@@ -27,6 +27,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/security.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_base.h>
+
+ int set_task_ioprio(struct task_struct *task, int ioprio)
+ {
+@@ -119,6 +120,8 @@ SYSCALL_DEFINE3(ioprio_set, int, which,
+ else
+ pgrp = find_vpid(who);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ ret = set_task_ioprio(p, ioprio);
+ if (ret)
+ break;
+@@ -208,6 +211,8 @@ SYSCALL_DEFINE2(ioprio_get, int, which,
+ else
+ pgrp = find_vpid(who);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ tmpio = get_task_ioprio(p);
+ if (tmpio < 0)
+ continue;
+diff -NurpP --minimal linux-3.0.9/fs/jfs/file.c linux-3.0.9-vs2.3.2.1/fs/jfs/file.c
+--- linux-3.0.9/fs/jfs/file.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/file.c 2011-07-01 11:35:34.000000000 +0200
+@@ -102,7 +102,8 @@ int jfs_setattr(struct dentry *dentry, s
+ if (is_quota_modification(inode, iattr))
+ dquot_initialize(inode);
+ if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++ (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
+ rc = dquot_transfer(inode, iattr);
+ if (rc)
+ return rc;
+@@ -133,6 +134,7 @@ const struct inode_operations jfs_file_i
+ #ifdef CONFIG_JFS_POSIX_ACL
+ .check_acl = jfs_check_acl,
+ #endif
++ .sync_flags = jfs_sync_flags,
+ };
+
+ const struct file_operations jfs_file_operations = {
+diff -NurpP --minimal linux-3.0.9/fs/jfs/ioctl.c linux-3.0.9-vs2.3.2.1/fs/jfs/ioctl.c
+--- linux-3.0.9/fs/jfs/ioctl.c 2011-05-22 16:17:52.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -11,6 +11,7 @@
+ #include <linux/mount.h>
+ #include <linux/time.h>
+ #include <linux/sched.h>
++#include <linux/mount.h>
+ #include <asm/current.h>
+ #include <asm/uaccess.h>
+
+@@ -52,6 +53,16 @@ static long jfs_map_ext2(unsigned long f
+ }
+
+
++int jfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ jfs_get_inode_flags(JFS_IP(inode));
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ long jfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_dentry->d_inode;
+@@ -85,6 +96,11 @@ long jfs_ioctl(struct file *filp, unsign
+ if (!S_ISDIR(inode->i_mode))
+ flags &= ~JFS_DIRSYNC_FL;
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
++
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ err = -EPERM;
+@@ -102,8 +118,8 @@ long jfs_ioctl(struct file *filp, unsign
+ * the relevant capability.
+ */
+ if ((oldflags & JFS_IMMUTABLE_FL) ||
+- ((flags ^ oldflags) &
+- (JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
++ ((flags ^ oldflags) & (JFS_APPEND_FL |
++ JFS_IMMUTABLE_FL | JFS_IXUNLINK_FL))) {
+ if (!capable(CAP_LINUX_IMMUTABLE)) {
+ mutex_unlock(&inode->i_mutex);
+ err = -EPERM;
+@@ -111,7 +127,7 @@ long jfs_ioctl(struct file *filp, unsign
+ }
+ }
+
+- flags = flags & JFS_FL_USER_MODIFIABLE;
++ flags &= JFS_FL_USER_MODIFIABLE;
+ flags |= oldflags & ~JFS_FL_USER_MODIFIABLE;
+ jfs_inode->mode2 = flags;
+
+diff -NurpP --minimal linux-3.0.9/fs/jfs/jfs_dinode.h linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_dinode.h
+--- linux-3.0.9/fs/jfs/jfs_dinode.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_dinode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -161,9 +161,13 @@ struct dinode {
+
+ #define JFS_APPEND_FL 0x01000000 /* writes to file may only append */
+ #define JFS_IMMUTABLE_FL 0x02000000 /* Immutable file */
++#define JFS_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+
+-#define JFS_FL_USER_VISIBLE 0x03F80000
+-#define JFS_FL_USER_MODIFIABLE 0x03F80000
++#define JFS_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define JFS_COW_FL 0x20000000 /* Copy on Write marker */
++
++#define JFS_FL_USER_VISIBLE 0x07F80000
++#define JFS_FL_USER_MODIFIABLE 0x07F80000
+ #define JFS_FL_INHERIT 0x03C80000
+
+ /* These are identical to EXT[23]_IOC_GETFLAGS/SETFLAGS */
+diff -NurpP --minimal linux-3.0.9/fs/jfs/jfs_filsys.h linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_filsys.h
+--- linux-3.0.9/fs/jfs/jfs_filsys.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_filsys.h 2011-06-10 22:11:24.000000000 +0200
+@@ -263,6 +263,7 @@
+ #define JFS_NAME_MAX 255
+ #define JFS_PATH_MAX BPSIZE
+
++#define JFS_TAGGED 0x00800000 /* Context Tagging */
+
+ /*
+ * file system state (superblock state)
+diff -NurpP --minimal linux-3.0.9/fs/jfs/jfs_imap.c linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_imap.c
+--- linux-3.0.9/fs/jfs/jfs_imap.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_imap.c 2011-07-01 11:35:34.000000000 +0200
+@@ -46,6 +46,7 @@
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
+ #include <linux/slab.h>
++#include <linux/vs_tag.h>
+
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+@@ -3058,6 +3059,8 @@ static int copy_from_dinode(struct dinod
+ {
+ struct jfs_inode_info *jfs_ip = JFS_IP(ip);
+ struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
++ uid_t uid;
++ gid_t gid;
+
+ jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
+ jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
+@@ -3078,14 +3081,18 @@ static int copy_from_dinode(struct dinod
+ }
+ ip->i_nlink = le32_to_cpu(dip->di_nlink);
+
+- jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
++ uid = le32_to_cpu(dip->di_uid);
++ gid = le32_to_cpu(dip->di_gid);
++ ip->i_tag = INOTAG_TAG(DX_TAG(ip), uid, gid, 0);
++
++ jfs_ip->saved_uid = INOTAG_UID(DX_TAG(ip), uid, gid);
+ if (sbi->uid == -1)
+ ip->i_uid = jfs_ip->saved_uid;
+ else {
+ ip->i_uid = sbi->uid;
+ }
+
+- jfs_ip->saved_gid = le32_to_cpu(dip->di_gid);
++ jfs_ip->saved_gid = INOTAG_GID(DX_TAG(ip), uid, gid);
+ if (sbi->gid == -1)
+ ip->i_gid = jfs_ip->saved_gid;
+ else {
+@@ -3150,14 +3157,12 @@ static void copy_to_dinode(struct dinode
+ dip->di_size = cpu_to_le64(ip->i_size);
+ dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
+ dip->di_nlink = cpu_to_le32(ip->i_nlink);
+- if (sbi->uid == -1)
+- dip->di_uid = cpu_to_le32(ip->i_uid);
+- else
+- dip->di_uid = cpu_to_le32(jfs_ip->saved_uid);
+- if (sbi->gid == -1)
+- dip->di_gid = cpu_to_le32(ip->i_gid);
+- else
+- dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
++
++ dip->di_uid = cpu_to_le32(TAGINO_UID(DX_TAG(ip),
++ (sbi->uid == -1) ? ip->i_uid : jfs_ip->saved_uid, ip->i_tag));
++ dip->di_gid = cpu_to_le32(TAGINO_GID(DX_TAG(ip),
++ (sbi->gid == -1) ? ip->i_gid : jfs_ip->saved_gid, ip->i_tag));
++
+ jfs_get_inode_flags(jfs_ip);
+ /*
+ * mode2 is only needed for storing the higher order bits.
+diff -NurpP --minimal linux-3.0.9/fs/jfs/jfs_inode.c linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_inode.c
+--- linux-3.0.9/fs/jfs/jfs_inode.c 2010-08-02 16:52:49.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -18,6 +18,7 @@
+
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+ #include "jfs_filsys.h"
+@@ -30,29 +31,46 @@ void jfs_set_inode_flags(struct inode *i
+ {
+ unsigned int flags = JFS_IP(inode)->mode2;
+
+- inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
+- S_NOATIME | S_DIRSYNC | S_SYNC);
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+ if (flags & JFS_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
++ if (flags & JFS_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++
++ if (flags & JFS_SYNC_FL)
++ inode->i_flags |= S_SYNC;
+ if (flags & JFS_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+ if (flags & JFS_NOATIME_FL)
+ inode->i_flags |= S_NOATIME;
+ if (flags & JFS_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
+- if (flags & JFS_SYNC_FL)
+- inode->i_flags |= S_SYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & JFS_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & JFS_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
+ {
+ unsigned int flags = jfs_ip->vfs_inode.i_flags;
++ unsigned int vflags = jfs_ip->vfs_inode.i_vflags;
++
++ jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_IXUNLINK_FL |
++ JFS_APPEND_FL | JFS_NOATIME_FL |
++ JFS_DIRSYNC_FL | JFS_SYNC_FL |
++ JFS_BARRIER_FL | JFS_COW_FL);
+
+- jfs_ip->mode2 &= ~(JFS_IMMUTABLE_FL | JFS_APPEND_FL | JFS_NOATIME_FL |
+- JFS_DIRSYNC_FL | JFS_SYNC_FL);
+ if (flags & S_IMMUTABLE)
+ jfs_ip->mode2 |= JFS_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ jfs_ip->mode2 |= JFS_IXUNLINK_FL;
++
+ if (flags & S_APPEND)
+ jfs_ip->mode2 |= JFS_APPEND_FL;
+ if (flags & S_NOATIME)
+@@ -61,6 +79,11 @@ void jfs_get_inode_flags(struct jfs_inod
+ jfs_ip->mode2 |= JFS_DIRSYNC_FL;
+ if (flags & S_SYNC)
+ jfs_ip->mode2 |= JFS_SYNC_FL;
++
++ if (vflags & V_BARRIER)
++ jfs_ip->mode2 |= JFS_BARRIER_FL;
++ if (vflags & V_COW)
++ jfs_ip->mode2 |= JFS_COW_FL;
+ }
+
+ /*
+diff -NurpP --minimal linux-3.0.9/fs/jfs/jfs_inode.h linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_inode.h
+--- linux-3.0.9/fs/jfs/jfs_inode.h 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/jfs_inode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -39,6 +39,7 @@ extern struct dentry *jfs_fh_to_dentry(s
+ extern struct dentry *jfs_fh_to_parent(struct super_block *sb, struct fid *fid,
+ int fh_len, int fh_type);
+ extern void jfs_set_inode_flags(struct inode *);
++extern int jfs_sync_flags(struct inode *, int, int);
+ extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
+ extern int jfs_setattr(struct dentry *, struct iattr *);
+
+diff -NurpP --minimal linux-3.0.9/fs/jfs/namei.c linux-3.0.9-vs2.3.2.1/fs/jfs/namei.c
+--- linux-3.0.9/fs/jfs/namei.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/namei.c 2011-06-10 22:11:24.000000000 +0200
+@@ -22,6 +22,7 @@
+ #include <linux/ctype.h>
+ #include <linux/quotaops.h>
+ #include <linux/exportfs.h>
++#include <linux/vs_tag.h>
+ #include "jfs_incore.h"
+ #include "jfs_superblock.h"
+ #include "jfs_inode.h"
+@@ -1486,6 +1487,7 @@ static struct dentry *jfs_lookup(struct
+ return ERR_CAST(ip);
+ }
+
++ dx_propagate_tag(nd, ip);
+ return d_splice_alias(ip, dentry);
+ }
+
+@@ -1550,6 +1552,7 @@ const struct inode_operations jfs_dir_in
+ #ifdef CONFIG_JFS_POSIX_ACL
+ .check_acl = jfs_check_acl,
+ #endif
++ .sync_flags = jfs_sync_flags,
+ };
+
+ const struct file_operations jfs_dir_operations = {
+diff -NurpP --minimal linux-3.0.9/fs/jfs/super.c linux-3.0.9-vs2.3.2.1/fs/jfs/super.c
+--- linux-3.0.9/fs/jfs/super.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/jfs/super.c 2011-06-10 22:11:24.000000000 +0200
+@@ -198,7 +198,8 @@ static void jfs_put_super(struct super_b
+ enum {
+ Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize,
+ Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota,
+- Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask
++ Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask,
++ Opt_tag, Opt_notag, Opt_tagid
+ };
+
+ static const match_table_t tokens = {
+@@ -208,6 +209,10 @@ static const match_table_t tokens = {
+ {Opt_resize, "resize=%u"},
+ {Opt_resize_nosize, "resize"},
+ {Opt_errors, "errors=%s"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
++ {Opt_tag, "tagxid"},
+ {Opt_ignore, "noquota"},
+ {Opt_ignore, "quota"},
+ {Opt_usrquota, "usrquota"},
+@@ -342,6 +347,20 @@ static int parse_options(char *options,
+ }
+ break;
+ }
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ *flag |= JFS_TAGGED;
++ break;
++ case Opt_notag:
++ *flag &= JFS_TAGGED;
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ *flag |= JFS_TAGGED;
++ break;
++#endif
+ default:
+ printk("jfs: Unrecognized mount option \"%s\" "
+ " or missing value\n", p);
+@@ -373,6 +392,12 @@ static int jfs_remount(struct super_bloc
+ return -EINVAL;
+ }
+
++ if ((flag & JFS_TAGGED) && !(sb->s_flags & MS_TAGGED)) {
++ printk(KERN_ERR "JFS: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++
+ if (newLVSize) {
+ if (sb->s_flags & MS_RDONLY) {
+ printk(KERN_ERR
+@@ -455,6 +480,9 @@ static int jfs_fill_super(struct super_b
+ #ifdef CONFIG_JFS_POSIX_ACL
+ sb->s_flags |= MS_POSIXACL;
+ #endif
++ /* map mount option tagxid */
++ if (sbi->flag & JFS_TAGGED)
++ sb->s_flags |= MS_TAGGED;
+
+ if (newLVSize) {
+ printk(KERN_ERR "resize option for remount only\n");
+diff -NurpP --minimal linux-3.0.9/fs/libfs.c linux-3.0.9-vs2.3.2.1/fs/libfs.c
+--- linux-3.0.9/fs/libfs.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/libfs.c 2011-07-22 11:20:39.000000000 +0200
+@@ -133,7 +133,8 @@ static inline unsigned char dt_type(stru
+ * both impossible due to the lock on directory.
+ */
+
+-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
++static inline int do_dcache_readdir_filter(struct file *filp,
++ void *dirent, filldir_t filldir, int (*filter)(struct dentry *dentry))
+ {
+ struct dentry *dentry = filp->f_path.dentry;
+ struct dentry *cursor = filp->private_data;
+@@ -164,6 +165,8 @@ int dcache_readdir(struct file * filp, v
+ for (p=q->next; p != &dentry->d_subdirs; p=p->next) {
+ struct dentry *next;
+ next = list_entry(p, struct dentry, d_u.d_child);
++ if (filter && !filter(next))
++ continue;
+ spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
+ if (!simple_positive(next)) {
+ spin_unlock(&next->d_lock);
+@@ -190,6 +193,17 @@ int dcache_readdir(struct file * filp, v
+ return 0;
+ }
+
++int dcache_readdir(struct file *filp, void *dirent, filldir_t filldir)
++{
++ return do_dcache_readdir_filter(filp, dirent, filldir, NULL);
++}
++
++int dcache_readdir_filter(struct file *filp, void *dirent, filldir_t filldir,
++ int (*filter)(struct dentry *))
++{
++ return do_dcache_readdir_filter(filp, dirent, filldir, filter);
++}
++
+ ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)
+ {
+ return -EISDIR;
+@@ -965,6 +979,7 @@ EXPORT_SYMBOL(dcache_dir_close);
+ EXPORT_SYMBOL(dcache_dir_lseek);
+ EXPORT_SYMBOL(dcache_dir_open);
+ EXPORT_SYMBOL(dcache_readdir);
++EXPORT_SYMBOL(dcache_readdir_filter);
+ EXPORT_SYMBOL(generic_read_dir);
+ EXPORT_SYMBOL(mount_pseudo);
+ EXPORT_SYMBOL(simple_write_begin);
+diff -NurpP --minimal linux-3.0.9/fs/locks.c linux-3.0.9-vs2.3.2.1/fs/locks.c
+--- linux-3.0.9/fs/locks.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/locks.c 2011-07-19 00:51:58.000000000 +0200
+@@ -126,6 +126,8 @@
+ #include <linux/time.h>
+ #include <linux/rcupdate.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+
+@@ -171,13 +173,19 @@ static void locks_init_lock_always(struc
+ fl->fl_flags = 0;
+ fl->fl_type = 0;
+ fl->fl_start = fl->fl_end = 0;
++ fl->fl_xid = -1;
+ }
+
++
+ /* Allocate an empty lock structure. */
+ struct file_lock *locks_alloc_lock(void)
+ {
+- struct file_lock *fl = kmem_cache_alloc(filelock_cache, GFP_KERNEL);
++ struct file_lock *fl;
++
++ if (!vx_locks_avail(1))
++ return NULL;
+
++ fl = kmem_cache_alloc(filelock_cache, GFP_KERNEL);
+ if (fl)
+ locks_init_lock_always(fl);
+
+@@ -208,6 +216,7 @@ void locks_free_lock(struct file_lock *f
+ BUG_ON(!list_empty(&fl->fl_block));
+ BUG_ON(!list_empty(&fl->fl_link));
+
++ vx_locks_dec(fl);
+ locks_release_private(fl);
+ kmem_cache_free(filelock_cache, fl);
+ }
+@@ -272,6 +281,7 @@ void locks_copy_lock(struct file_lock *n
+ new->fl_file = fl->fl_file;
+ new->fl_ops = fl->fl_ops;
+ new->fl_lmops = fl->fl_lmops;
++ new->fl_xid = fl->fl_xid;
+
+ locks_copy_private(new, fl);
+ }
+@@ -310,6 +320,11 @@ static int flock_make_lock(struct file *
+ fl->fl_flags = FL_FLOCK;
+ fl->fl_type = type;
+ fl->fl_end = OFFSET_MAX;
++
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ fl->fl_xid = filp->f_xid;
++ vx_locks_inc(fl);
+
+ *lock = fl;
+ return 0;
+@@ -459,6 +474,7 @@ static int lease_init(struct file *filp,
+
+ fl->fl_owner = current->files;
+ fl->fl_pid = current->tgid;
++ fl->fl_xid = vx_current_xid();
+
+ fl->fl_file = filp;
+ fl->fl_flags = FL_LEASE;
+@@ -478,6 +494,11 @@ static struct file_lock *lease_alloc(str
+ if (fl == NULL)
+ return ERR_PTR(error);
+
++ fl->fl_xid = vx_current_xid();
++ if (filp)
++ vxd_assert(filp->f_xid == fl->fl_xid,
++ "f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid);
++ vx_locks_inc(fl);
+ error = lease_init(filp, type, fl);
+ if (error) {
+ locks_free_lock(fl);
+@@ -779,6 +800,7 @@ static int flock_lock_file(struct file *
+ lock_flocks();
+ }
+
++ new_fl->fl_xid = -1;
+ find_conflict:
+ for_each_lock(inode, before) {
+ struct file_lock *fl = *before;
+@@ -799,6 +821,7 @@ find_conflict:
+ goto out;
+ locks_copy_lock(new_fl, request);
+ locks_insert_lock(before, new_fl);
++ vx_locks_inc(new_fl);
+ new_fl = NULL;
+ error = 0;
+
+@@ -809,7 +832,8 @@ out:
+ return error;
+ }
+
+-static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conflock)
++static int __posix_lock_file(struct inode *inode, struct file_lock *request,
++ struct file_lock *conflock, xid_t xid)
+ {
+ struct file_lock *fl;
+ struct file_lock *new_fl = NULL;
+@@ -819,6 +843,8 @@ static int __posix_lock_file(struct inod
+ struct file_lock **before;
+ int error, added = 0;
+
++ vxd_assert(xid == vx_current_xid(),
++ "xid(%d) == current(%d)", xid, vx_current_xid());
+ /*
+ * We may need two file_lock structures for this operation,
+ * so we get them in advance to avoid races.
+@@ -829,7 +855,11 @@ static int __posix_lock_file(struct inod
+ (request->fl_type != F_UNLCK ||
+ request->fl_start != 0 || request->fl_end != OFFSET_MAX)) {
+ new_fl = locks_alloc_lock();
++ new_fl->fl_xid = xid;
++ vx_locks_inc(new_fl);
+ new_fl2 = locks_alloc_lock();
++ new_fl2->fl_xid = xid;
++ vx_locks_inc(new_fl2);
+ }
+
+ lock_flocks();
+@@ -1028,7 +1058,8 @@ static int __posix_lock_file(struct inod
+ int posix_lock_file(struct file *filp, struct file_lock *fl,
+ struct file_lock *conflock)
+ {
+- return __posix_lock_file(filp->f_path.dentry->d_inode, fl, conflock);
++ return __posix_lock_file(filp->f_path.dentry->d_inode,
++ fl, conflock, filp->f_xid);
+ }
+ EXPORT_SYMBOL(posix_lock_file);
+
+@@ -1118,7 +1149,7 @@ int locks_mandatory_area(int read_write,
+ fl.fl_end = offset + count - 1;
+
+ for (;;) {
+- error = __posix_lock_file(inode, &fl, NULL);
++ error = __posix_lock_file(inode, &fl, NULL, filp->f_xid);
+ if (error != FILE_LOCK_DEFERRED)
+ break;
+ error = wait_event_interruptible(fl.fl_wait, !fl.fl_next);
+@@ -1431,6 +1462,7 @@ int generic_setlease(struct file *filp,
+ goto out;
+
+ locks_insert_lock(before, lease);
++ vx_locks_inc(lease);
+ return 0;
+
+ out:
+@@ -1815,6 +1847,11 @@ int fcntl_setlk(unsigned int fd, struct
+ if (file_lock == NULL)
+ return -ENOLCK;
+
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ file_lock->fl_xid = filp->f_xid;
++ vx_locks_inc(file_lock);
++
+ /*
+ * This might block, so we do it before checking the inode.
+ */
+@@ -1933,6 +1970,11 @@ int fcntl_setlk64(unsigned int fd, struc
+ if (file_lock == NULL)
+ return -ENOLCK;
+
++ vxd_assert(filp->f_xid == vx_current_xid(),
++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++ file_lock->fl_xid = filp->f_xid;
++ vx_locks_inc(file_lock);
++
+ /*
+ * This might block, so we do it before checking the inode.
+ */
+@@ -2198,8 +2240,11 @@ static int locks_show(struct seq_file *f
+
+ lock_get_status(f, fl, *((loff_t *)f->private), "");
+
+- list_for_each_entry(bfl, &fl->fl_block, fl_block)
++ list_for_each_entry(bfl, &fl->fl_block, fl_block) {
++ if (!vx_check(fl->fl_xid, VS_WATCH_P | VS_IDENT))
++ continue;
+ lock_get_status(f, bfl, *((loff_t *)f->private), " ->");
++ }
+
+ return 0;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/namei.c linux-3.0.9-vs2.3.2.1/fs/namei.c
+--- linux-3.0.9/fs/namei.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/namei.c 2011-11-16 14:27:47.000000000 +0100
+@@ -32,6 +32,14 @@
+ #include <linux/fcntl.h>
+ #include <linux/device_cgroup.h>
+ #include <linux/fs_struct.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vs_base.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_cowbl.h>
++#include <linux/vs_device.h>
++#include <linux/vs_context.h>
++#include <linux/pid_namespace.h>
+ #include <asm/uaccess.h>
+
+ #include "internal.h"
+@@ -175,6 +183,89 @@ void putname(const char *name)
+ EXPORT_SYMBOL(putname);
+ #endif
+
++static inline int dx_barrier(const struct inode *inode)
++{
++ if (IS_BARRIER(inode) && !vx_check(0, VS_ADMIN | VS_WATCH)) {
++ vxwprintk_task(1, "did hit the barrier.");
++ return 1;
++ }
++ return 0;
++}
++
++static int __dx_permission(const struct inode *inode, int mask)
++{
++ if (dx_barrier(inode))
++ return -EACCES;
++
++ if (inode->i_sb->s_magic == DEVPTS_SUPER_MAGIC) {
++ /* devpts is xid tagged */
++ if (S_ISDIR(inode->i_mode) ||
++ vx_check((xid_t)inode->i_tag, VS_IDENT | VS_WATCH_P))
++ return 0;
++
++ /* just pretend we didn't find anything */
++ return -ENOENT;
++ }
++ else if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) {
++ struct proc_dir_entry *de = PDE(inode);
++
++ if (de && !vx_hide_check(0, de->vx_flags))
++ goto out;
++
++ if ((mask & (MAY_WRITE | MAY_APPEND))) {
++ struct pid *pid;
++ struct task_struct *tsk;
++
++ if (vx_check(0, VS_ADMIN | VS_WATCH_P) ||
++ vx_flags(VXF_STATE_SETUP, 0))
++ return 0;
++
++ pid = PROC_I(inode)->pid;
++ if (!pid)
++ goto out;
++
++ rcu_read_lock();
++ tsk = pid_task(pid, PIDTYPE_PID);
++ vxdprintk(VXD_CBIT(tag, 0), "accessing %p[#%u]",
++ tsk, (tsk ? vx_task_xid(tsk) : 0));
++ if (tsk &&
++ vx_check(vx_task_xid(tsk), VS_IDENT | VS_WATCH_P)) {
++ rcu_read_unlock();
++ return 0;
++ }
++ rcu_read_unlock();
++ }
++ else {
++ /* FIXME: Should we block some entries here? */
++ return 0;
++ }
++ }
++ else {
++ if (dx_notagcheck(inode->i_sb) ||
++ dx_check(inode->i_tag, DX_HOSTID | DX_ADMIN | DX_WATCH |
++ DX_IDENT))
++ return 0;
++ }
++
++out:
++ return -EACCES;
++}
++
++int dx_permission(const struct inode *inode, int mask)
++{
++ int ret = __dx_permission(inode, mask);
++ if (unlikely(ret)) {
++#ifndef CONFIG_VSERVER_WARN_DEVPTS
++ if (inode->i_sb->s_magic != DEVPTS_SUPER_MAGIC)
++#endif
++ vxwprintk_task(1,
++ "denied [0x%x] access to inode %s:%p[#%d,%lu]",
++ mask, inode->i_sb->s_id, inode, inode->i_tag,
++ inode->i_ino);
++ }
++ return ret;
++}
++
+ /*
+ * This does basic POSIX ACL permission checking
+ */
+@@ -285,10 +376,14 @@ int inode_permission(struct inode *inode
+ /*
+ * Nobody gets write access to an immutable file.
+ */
+- if (IS_IMMUTABLE(inode))
++ if (IS_IMMUTABLE(inode) && !IS_COW(inode))
+ return -EACCES;
+ }
+
++ retval = dx_permission(inode, mask);
++ if (retval)
++ return retval;
++
+ if (inode->i_op->permission)
+ retval = inode->i_op->permission(inode, mask, 0);
+ else
+@@ -584,6 +679,9 @@ static inline int exec_permission(struct
+ int ret;
+ struct user_namespace *ns = inode_userns(inode);
+
++ if (dx_barrier(inode))
++ return -EACCES;
++
+ if (inode->i_op->permission) {
+ ret = inode->i_op->permission(inode, MAY_EXEC, flags);
+ } else {
+@@ -1095,7 +1193,8 @@ static void follow_dotdot(struct nameida
+
+ if (nd->path.dentry == nd->root.dentry &&
+ nd->path.mnt == nd->root.mnt) {
+- break;
++ /* for sane '/' avoid follow_mount() */
++ return;
+ }
+ if (nd->path.dentry != nd->path.mnt->mnt_root) {
+ /* rare case of legitimate dget_parent()... */
+@@ -1178,6 +1277,9 @@ static int do_lookup(struct nameidata *n
+ goto unlazy;
+ }
+ }
++
++ /* FIXME: check dx permission */
++
+ path->mnt = mnt;
+ path->dentry = dentry;
+ if (unlikely(!__follow_mount_rcu(nd, path, inode)))
+@@ -1226,6 +1328,8 @@ retry:
+ }
+ }
+
++ /* FIXME: check dx permission */
++
+ path->mnt = mnt;
+ path->dentry = dentry;
+ err = follow_managed(path, nd->flags);
+@@ -1853,7 +1957,7 @@ static int may_delete(struct inode *dir,
+ if (IS_APPEND(dir))
+ return -EPERM;
+ if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
+- IS_IMMUTABLE(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
++ IS_IXORUNLINK(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
+ return -EPERM;
+ if (isdir) {
+ if (!S_ISDIR(victim->d_inode->i_mode))
+@@ -1980,6 +2084,15 @@ static int may_open(struct path *path, i
+ break;
+ }
+
++#ifdef CONFIG_VSERVER_COWBL
++ if (IS_COW(inode) &&
++ ((flag & O_ACCMODE) != O_RDONLY)) {
++ if (IS_COW_LINK(inode))
++ return -EMLINK;
++ inode->i_flags &= ~(S_IXUNLINK|S_IMMUTABLE);
++ mark_inode_dirty(inode);
++ }
++#endif
+ error = inode_permission(inode, acc_mode);
+ if (error)
+ return error;
+@@ -2224,6 +2337,16 @@ ok:
+ }
+ common:
+ error = may_open(&nd->path, acc_mode, open_flag);
++#ifdef CONFIG_VSERVER_COWBL
++ if (error == -EMLINK) {
++ struct dentry *dentry;
++ dentry = cow_break_link(pathname);
++ if (IS_ERR(dentry))
++ error = PTR_ERR(dentry);
++ else
++ dput(dentry);
++ }
++#endif
+ if (error)
+ goto exit;
+ filp = nameidata_to_filp(nd);
+@@ -2266,6 +2389,7 @@ static struct file *path_openat(int dfd,
+ struct path path;
+ int error;
+
++restart:
+ filp = get_empty_filp();
+ if (!filp)
+ return ERR_PTR(-ENFILE);
+@@ -2303,6 +2427,17 @@ static struct file *path_openat(int dfd,
+ filp = do_last(nd, &path, op, pathname);
+ put_link(nd, &link, cookie);
+ }
++
++#ifdef CONFIG_VSERVER_COWBL
++ if (filp == ERR_PTR(-EMLINK)) {
++ if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT))
++ path_put(&nd->root);
++ if (base)
++ fput(base);
++ release_open_intent(nd);
++ goto restart;
++ }
++#endif
+ out:
+ if (nd->root.mnt && !(nd->flags & LOOKUP_ROOT))
+ path_put(&nd->root);
+@@ -2886,7 +3021,7 @@ int vfs_link(struct dentry *old_dentry,
+ /*
+ * A link to an append-only or immutable file cannot be created.
+ */
+- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ return -EPERM;
+ if (!dir->i_op->link)
+ return -EPERM;
+@@ -3274,6 +3409,227 @@ int vfs_follow_link(struct nameidata *nd
+ return __vfs_follow_link(nd, link);
+ }
+
++
++#ifdef CONFIG_VSERVER_COWBL
++
++static inline
++long do_cow_splice(struct file *in, struct file *out, size_t len)
++{
++ loff_t ppos = 0;
++
++ return do_splice_direct(in, &ppos, out, len, 0);
++}
++
++struct dentry *cow_break_link(const char *pathname)
++{
++ int ret, mode, pathlen, redo = 0;
++ struct nameidata old_nd, dir_nd;
++ struct path old_path;
++ struct dentry *dir, *old_dentry, *new_dentry = NULL;
++ struct file *old_file;
++ struct file *new_file;
++ char *to, *path, pad='\251';
++ loff_t size;
++
++ vxdprintk(VXD_CBIT(misc, 1),
++ "cow_break_link(" VS_Q("%s") ")", pathname);
++ path = kmalloc(PATH_MAX, GFP_KERNEL);
++ ret = -ENOMEM;
++ if (!path)
++ goto out;
++
++ /* old_nd will have refs to dentry and mnt */
++ ret = do_path_lookup(AT_FDCWD, pathname, LOOKUP_FOLLOW, &old_nd);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "do_path_lookup(old): %d [r=%d]",
++ ret, mnt_get_count(old_nd.path.mnt));
++ if (ret < 0)
++ goto out_free_path;
++
++ old_path = old_nd.path;
++ old_dentry = old_path.dentry;
++ mode = old_dentry->d_inode->i_mode;
++
++ to = d_path(&old_path, path, PATH_MAX-2);
++ pathlen = strlen(to);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "old path " VS_Q("%s") " [%p:" VS_Q("%.*s") ":%d]", to,
++ old_dentry,
++ old_dentry->d_name.len, old_dentry->d_name.name,
++ old_dentry->d_name.len);
++
++ to[pathlen + 1] = 0;
++retry:
++ new_dentry = NULL;
++ to[pathlen] = pad--;
++ ret = -ELOOP;
++ if (pad <= '\240')
++ goto out_rel_old;
++
++ vxdprintk(VXD_CBIT(misc, 1), "temp copy " VS_Q("%s"), to);
++ /* dir_nd will have refs to dentry and mnt */
++ ret = do_path_lookup(AT_FDCWD, to,
++ LOOKUP_PARENT | LOOKUP_OPEN | LOOKUP_CREATE, &dir_nd);
++ vxdprintk(VXD_CBIT(misc, 2), "do_path_lookup(new): %d", ret);
++ if (ret < 0)
++ goto retry;
++
++ /* this puppy downs the inode mutex */
++ new_dentry = lookup_create(&dir_nd, 0);
++ if (!new_dentry || IS_ERR(new_dentry)) {
++ path_put(&dir_nd.path);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "lookup_create(new): failed with %ld",
++ PTR_ERR(new_dentry));
++ mutex_unlock(&dir_nd.path.dentry->d_inode->i_mutex);
++ goto retry;
++ }
++ vxdprintk(VXD_CBIT(misc, 2),
++ "lookup_create(new): %p [" VS_Q("%.*s") ":%d]",
++ new_dentry,
++ new_dentry->d_name.len, new_dentry->d_name.name,
++ new_dentry->d_name.len);
++
++ dir = dir_nd.path.dentry;
++
++ ret = vfs_create(dir->d_inode, new_dentry, mode, &dir_nd);
++ vxdprintk(VXD_CBIT(misc, 2),
++ "vfs_create(new): %d", ret);
++ if (ret == -EEXIST) {
++ mutex_unlock(&dir->d_inode->i_mutex);
++ path_put(&dir_nd.path);
++ dput(new_dentry);
++ goto retry;
++ }
++ else if (ret < 0)
++ goto out_unlock_new;
++
++ /* drop out early, ret passes ENOENT */
++ ret = -ENOENT;
++ if ((redo = d_unhashed(old_dentry)))
++ goto out_unlock_new;
++
++ path_get(&old_path);
++ /* this one cleans up the dentry/mnt in case of failure */
++ old_file = dentry_open(old_dentry, old_path.mnt,
++ O_RDONLY, current_cred());
++ vxdprintk(VXD_CBIT(misc, 2),
++ "dentry_open(old): %p", old_file);
++ if (IS_ERR(old_file)) {
++ ret = PTR_ERR(old_file);
++ goto out_unlock_new;
++ }
++
++ dget(new_dentry);
++ mntget(old_path.mnt);
++ /* this one cleans up the dentry/mnt in case of failure */
++ new_file = dentry_open(new_dentry, old_path.mnt,
++ O_WRONLY, current_cred());
++ vxdprintk(VXD_CBIT(misc, 2),
++ "dentry_open(new): %p", new_file);
++ if (IS_ERR(new_file)) {
++ ret = PTR_ERR(new_file);
++ goto out_fput_old;
++ }
++
++ size = i_size_read(old_file->f_dentry->d_inode);
++ ret = do_cow_splice(old_file, new_file, size);
++ vxdprintk(VXD_CBIT(misc, 2), "do_splice_direct: %d", ret);
++ if (ret < 0) {
++ goto out_fput_both;
++ } else if (ret < size) {
++ ret = -ENOSPC;
++ goto out_fput_both;
++ } else {
++ struct inode *old_inode = old_dentry->d_inode;
++ struct inode *new_inode = new_dentry->d_inode;
++ struct iattr attr = {
++ .ia_uid = old_inode->i_uid,
++ .ia_gid = old_inode->i_gid,
++ .ia_valid = ATTR_UID | ATTR_GID
++ };
++
++ setattr_copy(new_inode, &attr);
++ mark_inode_dirty(new_inode);
++ }
++
++ mutex_lock(&old_dentry->d_inode->i_sb->s_vfs_rename_mutex);
++
++ /* drop out late */
++ ret = -ENOENT;
++ if ((redo = d_unhashed(old_dentry)))
++ goto out_unlock;
++
++ vxdprintk(VXD_CBIT(misc, 2),
++ "vfs_rename: [" VS_Q("%*s") ":%d] -> [" VS_Q("%*s") ":%d]",
++ new_dentry->d_name.len, new_dentry->d_name.name,
++ new_dentry->d_name.len,
++ old_dentry->d_name.len, old_dentry->d_name.name,
++ old_dentry->d_name.len);
++ ret = vfs_rename(dir_nd.path.dentry->d_inode, new_dentry,
++ old_dentry->d_parent->d_inode, old_dentry);
++ vxdprintk(VXD_CBIT(misc, 2), "vfs_rename: %d", ret);
++
++out_unlock:
++ mutex_unlock(&old_dentry->d_inode->i_sb->s_vfs_rename_mutex);
++
++out_fput_both:
++ vxdprintk(VXD_CBIT(misc, 3),
++ "fput(new_file=%p[#%ld])", new_file,
++ atomic_long_read(&new_file->f_count));
++ fput(new_file);
++
++out_fput_old:
++ vxdprintk(VXD_CBIT(misc, 3),
++ "fput(old_file=%p[#%ld])", old_file,
++ atomic_long_read(&old_file->f_count));
++ fput(old_file);
++
++out_unlock_new:
++ mutex_unlock(&dir->d_inode->i_mutex);
++ if (!ret)
++ goto out_redo;
++
++ /* error path cleanup */
++ vfs_unlink(dir->d_inode, new_dentry);
++
++out_redo:
++ if (!redo)
++ goto out_rel_both;
++ /* lookup dentry once again */
++ /* old_nd.path is freed as old_path in out_rel_old */
++ ret = do_path_lookup(AT_FDCWD, pathname, LOOKUP_FOLLOW, &old_nd);
++ if (ret)
++ goto out_rel_both;
++
++ dput(new_dentry);
++ new_dentry = old_nd.path.dentry;
++ vxdprintk(VXD_CBIT(misc, 2),
++ "do_path_lookup(redo): %p [" VS_Q("%.*s") ":%d]",
++ new_dentry,
++ new_dentry->d_name.len, new_dentry->d_name.name,
++ new_dentry->d_name.len);
++ dget(new_dentry);
++
++out_rel_both:
++ path_put(&dir_nd.path);
++out_rel_old:
++ path_put(&old_path);
++out_free_path:
++ kfree(path);
++out:
++ if (ret) {
++ dput(new_dentry);
++ new_dentry = ERR_PTR(ret);
++ }
++ vxdprintk(VXD_CBIT(misc, 3),
++ "cow_break_link returning with %p [r=%d]",
++ new_dentry, mnt_get_count(old_nd.path.mnt));
++ return new_dentry;
++}
++
++#endif
++
+ /* get the link contents into pagecache */
+ static char *page_getlink(struct dentry * dentry, struct page **ppage)
+ {
+diff -NurpP --minimal linux-3.0.9/fs/namespace.c linux-3.0.9-vs2.3.2.1/fs/namespace.c
+--- linux-3.0.9/fs/namespace.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/namespace.c 2011-11-15 17:37:39.000000000 +0100
+@@ -31,6 +31,11 @@
+ #include <linux/idr.h>
+ #include <linux/fs_struct.h>
+ #include <linux/fsnotify.h>
++#include <linux/vs_base.h>
++#include <linux/vs_context.h>
++#include <linux/vs_tag.h>
++#include <linux/vserver/space.h>
++#include <linux/vserver/global.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+ #include "pnode.h"
+@@ -679,6 +684,10 @@ vfs_kern_mount(struct file_system_type *
+ if (!type)
+ return ERR_PTR(-ENODEV);
+
++ if ((type->fs_flags & FS_BINARY_MOUNTDATA) &&
++ !vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT))
++ return ERR_PTR(-EPERM);
++
+ mnt = alloc_vfsmnt(name);
+ if (!mnt)
+ return ERR_PTR(-ENOMEM);
+@@ -724,6 +733,7 @@ static struct vfsmount *clone_mnt(struct
+ mnt->mnt_root = dget(root);
+ mnt->mnt_mountpoint = mnt->mnt_root;
+ mnt->mnt_parent = mnt;
++ mnt->mnt_tag = old->mnt_tag;
+
+ if (flag & CL_SLAVE) {
+ list_add(&mnt->mnt_slave, &old->mnt_slave_list);
+@@ -852,6 +862,31 @@ static inline void mangle(struct seq_fil
+ seq_escape(m, s, " \t\n\\");
+ }
+
++static int mnt_is_reachable(struct vfsmount *mnt)
++{
++ struct path root;
++ struct dentry *point;
++ int ret;
++
++ if (mnt == mnt->mnt_ns->root)
++ return 1;
++
++ br_read_lock(vfsmount_lock);
++ root = current->fs->root;
++ point = root.dentry;
++
++ while ((mnt != mnt->mnt_parent) && (mnt != root.mnt)) {
++ point = mnt->mnt_mountpoint;
++ mnt = mnt->mnt_parent;
++ }
++
++ ret = (mnt == root.mnt) && is_subdir(point, root.dentry);
++
++ br_read_unlock(vfsmount_lock);
++
++ return ret;
++}
++
+ /*
+ * Simple .show_options callback for filesystems which don't want to
+ * implement more complex mount option showing.
+@@ -954,6 +989,8 @@ static int show_sb_opts(struct seq_file
+ { MS_SYNCHRONOUS, ",sync" },
+ { MS_DIRSYNC, ",dirsync" },
+ { MS_MANDLOCK, ",mand" },
++ { MS_TAGGED, ",tag" },
++ { MS_NOTAGCHECK, ",notagcheck" },
+ { 0, NULL }
+ };
+ const struct proc_fs_info *fs_infop;
+@@ -1000,16 +1037,26 @@ static int show_vfsmnt(struct seq_file *
+ int err = 0;
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+
+- if (mnt->mnt_sb->s_op->show_devname) {
+- err = mnt->mnt_sb->s_op->show_devname(m, mnt);
+- if (err)
+- goto out;
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
++
++ if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
++ mnt == current->fs->root.mnt) {
++ seq_puts(m, "/dev/root / ");
+ } else {
+- mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
++ if (mnt->mnt_sb->s_op->show_devname) {
++ err = mnt->mnt_sb->s_op->show_devname(m, mnt);
++ if (err)
++ goto out;
++ } else {
++ mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
++ }
++ seq_putc(m, ' ');
++ seq_path(m, &mnt_path, " \t\n\\");
++ seq_putc(m, ' ');
+ }
+- seq_putc(m, ' ');
+- seq_path(m, &mnt_path, " \t\n\\");
+- seq_putc(m, ' ');
+ show_type(m, mnt->mnt_sb);
+ seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
+ err = show_sb_opts(m, mnt->mnt_sb);
+@@ -1039,6 +1086,11 @@ static int show_mountinfo(struct seq_fil
+ struct path root = p->root;
+ int err = 0;
+
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
++
+ seq_printf(m, "%i %i %u:%u ", mnt->mnt_id, mnt->mnt_parent->mnt_id,
+ MAJOR(sb->s_dev), MINOR(sb->s_dev));
+ if (sb->s_op->show_path)
+@@ -1107,22 +1159,32 @@ static int show_vfsstat(struct seq_file
+ struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
+ int err = 0;
+
+- /* device */
+- if (mnt->mnt_sb->s_op->show_devname) {
+- seq_puts(m, "device ");
+- err = mnt->mnt_sb->s_op->show_devname(m, mnt);
++ if (vx_flags(VXF_HIDE_MOUNT, 0))
++ return SEQ_SKIP;
++ if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
++ return SEQ_SKIP;
++
++ if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
++ mnt == current->fs->root.mnt) {
++ seq_puts(m, "device /dev/root mounted on / ");
+ } else {
+- if (mnt->mnt_devname) {
++ /* device */
++ if (mnt->mnt_sb->s_op->show_devname) {
+ seq_puts(m, "device ");
+- mangle(m, mnt->mnt_devname);
+- } else
+- seq_puts(m, "no device");
+- }
++ err = mnt->mnt_sb->s_op->show_devname(m, mnt);
++ } else {
++ if (mnt->mnt_devname) {
++ seq_puts(m, "device ");
++ mangle(m, mnt->mnt_devname);
++ } else
++ seq_puts(m, "no device");
++ }
+
+- /* mount point */
+- seq_puts(m, " mounted on ");
+- seq_path(m, &mnt_path, " \t\n\\");
+- seq_putc(m, ' ');
++ /* mount point */
++ seq_puts(m, " mounted on ");
++ seq_path(m, &mnt_path, " \t\n\\");
++ seq_putc(m, ' ');
++ }
+
+ /* file system type */
+ seq_puts(m, "with fstype ");
+@@ -1381,7 +1443,7 @@ SYSCALL_DEFINE2(umount, char __user *, n
+ goto dput_and_out;
+
+ retval = -EPERM;
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ goto dput_and_out;
+
+ retval = do_umount(path.mnt, flags);
+@@ -1407,7 +1469,7 @@ SYSCALL_DEFINE1(oldumount, char __user *
+
+ static int mount_is_safe(struct path *path)
+ {
+- if (capable(CAP_SYS_ADMIN))
++ if (vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return 0;
+ return -EPERM;
+ #ifdef notyet
+@@ -1717,7 +1779,7 @@ static int do_change_type(struct path *p
+ int type;
+ int err = 0;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_NAMESPACE))
+ return -EPERM;
+
+ if (path->dentry != path->mnt->mnt_root)
+@@ -1733,6 +1795,7 @@ static int do_change_type(struct path *p
+ if (err)
+ goto out_unlock;
+ }
++ // mnt->mnt_flags = mnt_flags;
+
+ br_write_lock(vfsmount_lock);
+ for (m = mnt; m; m = (recurse ? next_mnt(m, mnt) : NULL))
+@@ -1748,12 +1811,14 @@ static int do_change_type(struct path *p
+ * do loopback mount.
+ */
+ static int do_loopback(struct path *path, char *old_name,
+- int recurse)
++ tag_t tag, unsigned long flags, int mnt_flags)
+ {
+ LIST_HEAD(umount_list);
+ struct path old_path;
+ struct vfsmount *mnt = NULL;
+ int err = mount_is_safe(path);
++ int recurse = flags & MS_REC;
++
+ if (err)
+ return err;
+ if (!old_name || !*old_name)
+@@ -1819,12 +1884,12 @@ static int change_mount_flags(struct vfs
+ * on it - tough luck.
+ */
+ static int do_remount(struct path *path, int flags, int mnt_flags,
+- void *data)
++ void *data, xid_t xid)
+ {
+ int err;
+ struct super_block *sb = path->mnt->mnt_sb;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_REMOUNT))
+ return -EPERM;
+
+ if (!check_mnt(path->mnt))
+@@ -1872,7 +1937,7 @@ static int do_move_mount(struct path *pa
+ struct path old_path, parent_path;
+ struct vfsmount *p;
+ int err = 0;
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return -EPERM;
+ if (!old_name || !*old_name)
+ return -EINVAL;
+@@ -2023,7 +2088,7 @@ static int do_new_mount(struct path *pat
+ return -EINVAL;
+
+ /* we need capabilities... */
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
+ return -EPERM;
+
+ mnt = do_kern_mount(type, flags, name, data);
+@@ -2292,6 +2357,7 @@ long do_mount(char *dev_name, char *dir_
+ struct path path;
+ int retval = 0;
+ int mnt_flags = 0;
++ tag_t tag = 0;
+
+ /* Discard magic */
+ if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
+@@ -2319,6 +2385,12 @@ long do_mount(char *dev_name, char *dir_
+ if (!(flags & MS_NOATIME))
+ mnt_flags |= MNT_RELATIME;
+
++ if (dx_parse_tag(data_page, &tag, 1, &mnt_flags, &flags)) {
++ /* FIXME: bind and re-mounts get the tag flag? */
++ if (flags & (MS_BIND|MS_REMOUNT))
++ flags |= MS_TAGID;
++ }
++
+ /* Separate the per-mountpoint flags */
+ if (flags & MS_NOSUID)
+ mnt_flags |= MNT_NOSUID;
+@@ -2335,15 +2407,17 @@ long do_mount(char *dev_name, char *dir_
+ if (flags & MS_RDONLY)
+ mnt_flags |= MNT_READONLY;
+
++ if (!capable(CAP_SYS_ADMIN))
++ mnt_flags |= MNT_NODEV;
+ flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
+ MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+ MS_STRICTATIME);
+
+ if (flags & MS_REMOUNT)
+ retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+- data_page);
++ data_page, tag);
+ else if (flags & MS_BIND)
+- retval = do_loopback(&path, dev_name, flags & MS_REC);
++ retval = do_loopback(&path, dev_name, tag, flags, mnt_flags);
+ else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
+ retval = do_change_type(&path, flags);
+ else if (flags & MS_MOVE)
+@@ -2443,6 +2517,7 @@ static struct mnt_namespace *dup_mnt_ns(
+ q = next_mnt(q, new_ns->root);
+ }
+ up_write(&namespace_sem);
++ atomic_inc(&vs_global_mnt_ns);
+
+ if (rootmnt)
+ mntput(rootmnt);
+@@ -2582,9 +2657,10 @@ SYSCALL_DEFINE2(pivot_root, const char _
+ goto out3;
+
+ error = -EINVAL;
+- if (IS_MNT_SHARED(old.mnt) ||
+- IS_MNT_SHARED(new.mnt->mnt_parent) ||
+- IS_MNT_SHARED(root.mnt->mnt_parent))
++ if ((IS_MNT_SHARED(old.mnt) ||
++ IS_MNT_SHARED(new.mnt->mnt_parent) ||
++ IS_MNT_SHARED(root.mnt->mnt_parent)) &&
++ !vx_flags(VXF_STATE_SETUP, 0))
+ goto out4;
+ if (!check_mnt(root.mnt) || !check_mnt(new.mnt))
+ goto out4;
+@@ -2716,6 +2792,7 @@ void put_mnt_ns(struct mnt_namespace *ns
+ br_write_unlock(vfsmount_lock);
+ up_write(&namespace_sem);
+ release_mounts(&umount_list);
++ atomic_dec(&vs_global_mnt_ns);
+ kfree(ns);
+ }
+ EXPORT_SYMBOL(put_mnt_ns);
+diff -NurpP --minimal linux-3.0.9/fs/nfs/client.c linux-3.0.9-vs2.3.2.1/fs/nfs/client.c
+--- linux-3.0.9/fs/nfs/client.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/nfs/client.c 2011-06-10 22:11:24.000000000 +0200
+@@ -780,6 +780,9 @@ static int nfs_init_server_rpcclient(str
+ if (server->flags & NFS_MOUNT_SOFT)
+ server->client->cl_softrtry = 1;
+
++ server->client->cl_tag = 0;
++ if (server->flags & NFS_MOUNT_TAGGED)
++ server->client->cl_tag = 1;
+ return 0;
+ }
+
+@@ -951,6 +954,10 @@ static void nfs_server_set_fsinfo(struct
+ server->acdirmin = server->acdirmax = 0;
+ }
+
++ /* FIXME: needs fsinfo
++ if (server->flags & NFS_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED; */
++
+ server->maxfilesize = fsinfo->maxfilesize;
+
+ server->time_delta = fsinfo->time_delta;
+diff -NurpP --minimal linux-3.0.9/fs/nfs/dir.c linux-3.0.9-vs2.3.2.1/fs/nfs/dir.c
+--- linux-3.0.9/fs/nfs/dir.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/nfs/dir.c 2011-08-08 23:04:47.000000000 +0200
+@@ -35,6 +35,7 @@
+ #include <linux/sched.h>
+ #include <linux/kmemleak.h>
+ #include <linux/xattr.h>
++#include <linux/vs_tag.h>
+
+ #include "delegation.h"
+ #include "iostat.h"
+@@ -1308,6 +1309,7 @@ static struct dentry *nfs_lookup(struct
+ if (IS_ERR(res))
+ goto out_unblock_sillyrename;
+
++ dx_propagate_tag(nd, inode);
+ no_entry:
+ res = d_materialise_unique(dentry, inode);
+ if (res != NULL) {
+diff -NurpP --minimal linux-3.0.9/fs/nfs/inode.c linux-3.0.9-vs2.3.2.1/fs/nfs/inode.c
+--- linux-3.0.9/fs/nfs/inode.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/nfs/inode.c 2011-10-11 21:21:33.000000000 +0200
+@@ -38,6 +38,7 @@
+ #include <linux/nfs_xdr.h>
+ #include <linux/slab.h>
+ #include <linux/compat.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+@@ -273,6 +274,8 @@ nfs_fhget(struct super_block *sb, struct
+ if (inode->i_state & I_NEW) {
+ struct nfs_inode *nfsi = NFS_I(inode);
+ unsigned long now = jiffies;
++ uid_t uid;
++ gid_t gid;
+
+ /* We set i_ino for the few things that still rely on it,
+ * such as stat(2) */
+@@ -321,8 +324,8 @@ nfs_fhget(struct super_block *sb, struct
+ nfsi->change_attr = 0;
+ inode->i_size = 0;
+ inode->i_nlink = 0;
+- inode->i_uid = -2;
+- inode->i_gid = -2;
++ uid = -2;
++ gid = -2;
+ inode->i_blocks = 0;
+ memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
+
+@@ -359,13 +362,13 @@ nfs_fhget(struct super_block *sb, struct
+ else if (nfs_server_capable(inode, NFS_CAP_NLINK))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
+ if (fattr->valid & NFS_ATTR_FATTR_OWNER)
+- inode->i_uid = fattr->uid;
++ uid = fattr->uid;
+ else if (nfs_server_capable(inode, NFS_CAP_OWNER))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_ACCESS
+ | NFS_INO_INVALID_ACL;
+ if (fattr->valid & NFS_ATTR_FATTR_GROUP)
+- inode->i_gid = fattr->gid;
++ gid = fattr->gid;
+ else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP))
+ nfsi->cache_validity |= NFS_INO_INVALID_ATTR
+ | NFS_INO_INVALID_ACCESS
+@@ -378,6 +381,11 @@ nfs_fhget(struct super_block *sb, struct
+ */
+ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
+ }
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0);
++ /* maybe fattr->xid someday */
++
+ nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
+ nfsi->attrtimeo_timestamp = now;
+ nfsi->access_cache = RB_ROOT;
+@@ -494,6 +502,8 @@ void nfs_setattr_update_inode(struct ino
+ inode->i_uid = attr->ia_uid;
+ if ((attr->ia_valid & ATTR_GID) != 0)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ spin_unlock(&inode->i_lock);
+ }
+@@ -941,6 +951,9 @@ static int nfs_check_inode_attributes(st
+ struct nfs_inode *nfsi = NFS_I(inode);
+ loff_t cur_size, new_isize;
+ unsigned long invalid = 0;
++ uid_t uid;
++ gid_t gid;
++ tag_t tag;
+
+
+ /* Has the inode gone and changed behind our back? */
+@@ -964,13 +977,18 @@ static int nfs_check_inode_attributes(st
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
+ }
+
++ uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
++ gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
++ tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
++
+ /* Have any file permissions changed? */
+ if ((fattr->valid & NFS_ATTR_FATTR_MODE) && (inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO))
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
+- if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && inode->i_uid != fattr->uid)
++ if ((fattr->valid & NFS_ATTR_FATTR_OWNER) && uid != fattr->uid)
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
+- if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && inode->i_gid != fattr->gid)
++ if ((fattr->valid & NFS_ATTR_FATTR_GROUP) && gid != fattr->gid)
+ invalid |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
++ /* maybe check for tag too? */
+
+ /* Has the link count changed? */
+ if ((fattr->valid & NFS_ATTR_FATTR_NLINK) && inode->i_nlink != fattr->nlink)
+@@ -1205,6 +1223,9 @@ static int nfs_update_inode(struct inode
+ unsigned long invalid = 0;
+ unsigned long now = jiffies;
+ unsigned long save_cache_validity;
++ uid_t uid;
++ gid_t gid;
++ tag_t tag;
+
+ dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
+ __func__, inode->i_sb->s_id, inode->i_ino,
+@@ -1312,6 +1333,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_PAGECACHE
+ | NFS_INO_REVAL_FORCED);
+
++ uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
++ tag = inode->i_tag;
+
+ if (fattr->valid & NFS_ATTR_FATTR_ATIME)
+ memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
+@@ -1333,9 +1357,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_FORCED);
+
+ if (fattr->valid & NFS_ATTR_FATTR_OWNER) {
+- if (inode->i_uid != fattr->uid) {
++ if (uid != fattr->uid) {
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+- inode->i_uid = fattr->uid;
++ uid = fattr->uid;
+ }
+ } else if (server->caps & NFS_CAP_OWNER)
+ invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+@@ -1344,9 +1368,9 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_REVAL_FORCED);
+
+ if (fattr->valid & NFS_ATTR_FATTR_GROUP) {
+- if (inode->i_gid != fattr->gid) {
++ if (gid != fattr->gid) {
+ invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+- inode->i_gid = fattr->gid;
++ gid = fattr->gid;
+ }
+ } else if (server->caps & NFS_CAP_OWNER_GROUP)
+ invalid |= save_cache_validity & (NFS_INO_INVALID_ATTR
+@@ -1354,6 +1378,10 @@ static int nfs_update_inode(struct inode
+ | NFS_INO_INVALID_ACL
+ | NFS_INO_REVAL_FORCED);
+
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, tag);
++
+ if (fattr->valid & NFS_ATTR_FATTR_NLINK) {
+ if (inode->i_nlink != fattr->nlink) {
+ invalid |= NFS_INO_INVALID_ATTR;
+diff -NurpP --minimal linux-3.0.9/fs/nfs/nfs3xdr.c linux-3.0.9-vs2.3.2.1/fs/nfs/nfs3xdr.c
+--- linux-3.0.9/fs/nfs/nfs3xdr.c 2011-03-15 18:07:32.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/nfs/nfs3xdr.c 2011-06-10 22:11:24.000000000 +0200
+@@ -20,6 +20,7 @@
+ #include <linux/nfs3.h>
+ #include <linux/nfs_fs.h>
+ #include <linux/nfsacl.h>
++#include <linux/vs_tag.h>
+ #include "internal.h"
+
+ #define NFSDBG_FACILITY NFSDBG_XDR
+@@ -562,7 +563,8 @@ static __be32 *xdr_decode_nfstime3(__be3
+ * set_mtime mtime;
+ * };
+ */
+-static void encode_sattr3(struct xdr_stream *xdr, const struct iattr *attr)
++static void encode_sattr3(struct xdr_stream *xdr,
++ const struct iattr *attr, int tag)
+ {
+ u32 nbytes;
+ __be32 *p;
+@@ -594,15 +596,19 @@ static void encode_sattr3(struct xdr_str
+ } else
+ *p++ = xdr_zero;
+
+- if (attr->ia_valid & ATTR_UID) {
++ if (attr->ia_valid & ATTR_UID ||
++ (tag && (attr->ia_valid & ATTR_TAG))) {
+ *p++ = xdr_one;
+- *p++ = cpu_to_be32(attr->ia_uid);
++ *p++ = cpu_to_be32(TAGINO_UID(tag,
++ attr->ia_uid, attr->ia_tag));
+ } else
+ *p++ = xdr_zero;
+
+- if (attr->ia_valid & ATTR_GID) {
++ if (attr->ia_valid & ATTR_GID ||
++ (tag && (attr->ia_valid & ATTR_TAG))) {
+ *p++ = xdr_one;
+- *p++ = cpu_to_be32(attr->ia_gid);
++ *p++ = cpu_to_be32(TAGINO_GID(tag,
++ attr->ia_gid, attr->ia_tag));
+ } else
+ *p++ = xdr_zero;
+
+@@ -878,7 +884,7 @@ static void nfs3_xdr_enc_setattr3args(st
+ const struct nfs3_sattrargs *args)
+ {
+ encode_nfs_fh3(xdr, args->fh);
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, req->rq_task->tk_client->cl_tag);
+ encode_sattrguard3(xdr, args);
+ }
+
+@@ -1028,13 +1034,13 @@ static void nfs3_xdr_enc_write3args(stru
+ * };
+ */
+ static void encode_createhow3(struct xdr_stream *xdr,
+- const struct nfs3_createargs *args)
++ const struct nfs3_createargs *args, int tag)
+ {
+ encode_uint32(xdr, args->createmode);
+ switch (args->createmode) {
+ case NFS3_CREATE_UNCHECKED:
+ case NFS3_CREATE_GUARDED:
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, tag);
+ break;
+ case NFS3_CREATE_EXCLUSIVE:
+ encode_createverf3(xdr, args->verifier);
+@@ -1049,7 +1055,7 @@ static void nfs3_xdr_enc_create3args(str
+ const struct nfs3_createargs *args)
+ {
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+- encode_createhow3(xdr, args);
++ encode_createhow3(xdr, args, req->rq_task->tk_client->cl_tag);
+ }
+
+ /*
+@@ -1065,7 +1071,7 @@ static void nfs3_xdr_enc_mkdir3args(stru
+ const struct nfs3_mkdirargs *args)
+ {
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, req->rq_task->tk_client->cl_tag);
+ }
+
+ /*
+@@ -1082,9 +1088,9 @@ static void nfs3_xdr_enc_mkdir3args(stru
+ * };
+ */
+ static void encode_symlinkdata3(struct xdr_stream *xdr,
+- const struct nfs3_symlinkargs *args)
++ const struct nfs3_symlinkargs *args, int tag)
+ {
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, tag);
+ encode_nfspath3(xdr, args->pages, args->pathlen);
+ }
+
+@@ -1093,7 +1099,7 @@ static void nfs3_xdr_enc_symlink3args(st
+ const struct nfs3_symlinkargs *args)
+ {
+ encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
+- encode_symlinkdata3(xdr, args);
++ encode_symlinkdata3(xdr, args, req->rq_task->tk_client->cl_tag);
+ }
+
+ /*
+@@ -1121,24 +1127,24 @@ static void nfs3_xdr_enc_symlink3args(st
+ * };
+ */
+ static void encode_devicedata3(struct xdr_stream *xdr,
+- const struct nfs3_mknodargs *args)
++ const struct nfs3_mknodargs *args, int tag)
+ {
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, tag);
+ encode_specdata3(xdr, args->rdev);
+ }
+
+ static void encode_mknoddata3(struct xdr_stream *xdr,
+- const struct nfs3_mknodargs *args)
++ const struct nfs3_mknodargs *args, int tag)
+ {
+ encode_ftype3(xdr, args->type);
+ switch (args->type) {
+ case NF3CHR:
+ case NF3BLK:
+- encode_devicedata3(xdr, args);
++ encode_devicedata3(xdr, args, tag);
+ break;
+ case NF3SOCK:
+ case NF3FIFO:
+- encode_sattr3(xdr, args->sattr);
++ encode_sattr3(xdr, args->sattr, tag);
+ break;
+ case NF3REG:
+ case NF3DIR:
+@@ -1153,7 +1159,7 @@ static void nfs3_xdr_enc_mknod3args(stru
+ const struct nfs3_mknodargs *args)
+ {
+ encode_diropargs3(xdr, args->fh, args->name, args->len);
+- encode_mknoddata3(xdr, args);
++ encode_mknoddata3(xdr, args, req->rq_task->tk_client->cl_tag);
+ }
+
+ /*
+diff -NurpP --minimal linux-3.0.9/fs/nfs/super.c linux-3.0.9-vs2.3.2.1/fs/nfs/super.c
+--- linux-3.0.9/fs/nfs/super.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/nfs/super.c 2011-11-15 17:37:07.000000000 +0100
+@@ -53,6 +53,7 @@
+ #include <linux/nfs_xdr.h>
+ #include <linux/magic.h>
+ #include <linux/parser.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+@@ -87,6 +88,7 @@ enum {
+ Opt_sharecache, Opt_nosharecache,
+ Opt_resvport, Opt_noresvport,
+ Opt_fscache, Opt_nofscache,
++ Opt_tag, Opt_notag,
+
+ /* Mount options that take integer arguments */
+ Opt_port,
+@@ -100,6 +102,7 @@ enum {
+ Opt_mountvers,
+ Opt_nfsvers,
+ Opt_minorversion,
++ Opt_tagid,
+
+ /* Mount options that take string arguments */
+ Opt_sec, Opt_proto, Opt_mountproto, Opt_mounthost,
+@@ -180,6 +183,10 @@ static const match_table_t nfs_mount_opt
+ { Opt_fscache_uniq, "fsc=%s" },
+ { Opt_local_lock, "local_lock=%s" },
+
++ { Opt_tag, "tag" },
++ { Opt_notag, "notag" },
++ { Opt_tagid, "tagid=%u" },
++
+ { Opt_err, NULL }
+ };
+
+@@ -650,6 +657,7 @@ static void nfs_show_mount_options(struc
+ { NFS_MOUNT_NORDIRPLUS, ",nordirplus", "" },
+ { NFS_MOUNT_UNSHARED, ",nosharecache", "" },
+ { NFS_MOUNT_NORESVPORT, ",noresvport", "" },
++ { NFS_MOUNT_TAGGED, ",tag", "" },
+ { 0, NULL, NULL }
+ };
+ const struct proc_nfs_info *nfs_infop;
+@@ -1198,6 +1206,14 @@ static int nfs_parse_mount_options(char
+ kfree(mnt->fscache_uniq);
+ mnt->fscache_uniq = NULL;
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ mnt->flags |= NFS_MOUNT_TAGGED;
++ break;
++ case Opt_notag:
++ mnt->flags &= ~NFS_MOUNT_TAGGED;
++ break;
++#endif
+
+ /*
+ * options that take numeric values
+@@ -1304,6 +1320,12 @@ static int nfs_parse_mount_options(char
+ goto out_invalid_value;
+ mnt->minorversion = option;
+ break;
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ nfs_data.flags |= NFS_MOUNT_TAGGED;
++ break;
++#endif
+
+ /*
+ * options that take text values
+diff -NurpP --minimal linux-3.0.9/fs/nfsd/auth.c linux-3.0.9-vs2.3.2.1/fs/nfsd/auth.c
+--- linux-3.0.9/fs/nfsd/auth.c 2010-02-25 11:52:05.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/nfsd/auth.c 2011-06-10 22:11:24.000000000 +0200
+@@ -1,6 +1,7 @@
+ /* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> */
+
+ #include <linux/sched.h>
++#include <linux/vs_tag.h>
+ #include "nfsd.h"
+ #include "auth.h"
+
+@@ -36,6 +37,9 @@ int nfsd_setuser(struct svc_rqst *rqstp,
+
+ new->fsuid = rqstp->rq_cred.cr_uid;
+ new->fsgid = rqstp->rq_cred.cr_gid;
++ /* FIXME: this desperately needs a tag :)
++ new->xid = (xid_t)INOTAG_TAG(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid, 0);
++ */
+
+ rqgi = rqstp->rq_cred.cr_group_info;
+
+diff -NurpP --minimal linux-3.0.9/fs/nfsd/nfs3xdr.c linux-3.0.9-vs2.3.2.1/fs/nfsd/nfs3xdr.c
+--- linux-3.0.9/fs/nfsd/nfs3xdr.c 2011-07-22 11:18:05.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/nfsd/nfs3xdr.c 2011-06-10 22:11:24.000000000 +0200
+@@ -7,6 +7,7 @@
+ */
+
+ #include <linux/namei.h>
++#include <linux/vs_tag.h>
+ #include "xdr3.h"
+ #include "auth.h"
+
+@@ -95,6 +96,8 @@ static __be32 *
+ decode_sattr3(__be32 *p, struct iattr *iap)
+ {
+ u32 tmp;
++ uid_t uid = 0;
++ gid_t gid = 0;
+
+ iap->ia_valid = 0;
+
+@@ -104,12 +107,15 @@ decode_sattr3(__be32 *p, struct iattr *i
+ }
+ if (*p++) {
+ iap->ia_valid |= ATTR_UID;
+- iap->ia_uid = ntohl(*p++);
++ uid = ntohl(*p++);
+ }
+ if (*p++) {
+ iap->ia_valid |= ATTR_GID;
+- iap->ia_gid = ntohl(*p++);
++ gid = ntohl(*p++);
+ }
++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
+ if (*p++) {
+ u64 newsize;
+
+@@ -165,8 +171,12 @@ encode_fattr3(struct svc_rqst *rqstp, __
+ *p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
+ *p++ = htonl((u32) stat->mode);
+ *p++ = htonl((u32) stat->nlink);
+- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
+- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
++ *p++ = htonl((u32) nfsd_ruid(rqstp,
++ TAGINO_UID(0 /* FIXME: DX_TAG(dentry->d_inode) */,
++ stat->uid, stat->tag)));
++ *p++ = htonl((u32) nfsd_rgid(rqstp,
++ TAGINO_GID(0 /* FIXME: DX_TAG(dentry->d_inode) */,
++ stat->gid, stat->tag)));
+ if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) {
+ p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
+ } else {
+diff -NurpP --minimal linux-3.0.9/fs/nfsd/nfs4xdr.c linux-3.0.9-vs2.3.2.1/fs/nfsd/nfs4xdr.c
+--- linux-3.0.9/fs/nfsd/nfs4xdr.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/nfsd/nfs4xdr.c 2011-11-15 17:37:07.000000000 +0100
+@@ -45,6 +45,7 @@
+ #include <linux/statfs.h>
+ #include <linux/utsname.h>
+ #include <linux/sunrpc/svcauth_gss.h>
++#include <linux/vs_tag.h>
+
+ #include "idmap.h"
+ #include "acl.h"
+@@ -2102,14 +2103,18 @@ out_acl:
+ WRITE32(stat.nlink);
+ }
+ if (bmval1 & FATTR4_WORD1_OWNER) {
+- status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen);
++ status = nfsd4_encode_user(rqstp,
++ TAGINO_UID(DX_TAG(dentry->d_inode),
++ stat.uid, stat.tag), &p, &buflen);
+ if (status == nfserr_resource)
+ goto out_resource;
+ if (status)
+ goto out;
+ }
+ if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
+- status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen);
++ status = nfsd4_encode_group(rqstp,
++ TAGINO_GID(DX_TAG(dentry->d_inode),
++ stat.gid, stat.tag), &p, &buflen);
+ if (status == nfserr_resource)
+ goto out_resource;
+ if (status)
+diff -NurpP --minimal linux-3.0.9/fs/nfsd/nfsxdr.c linux-3.0.9-vs2.3.2.1/fs/nfsd/nfsxdr.c
+--- linux-3.0.9/fs/nfsd/nfsxdr.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/nfsd/nfsxdr.c 2011-06-10 22:11:24.000000000 +0200
+@@ -6,6 +6,7 @@
+
+ #include "xdr.h"
+ #include "auth.h"
++#include <linux/vs_tag.h>
+
+ #define NFSDDBG_FACILITY NFSDDBG_XDR
+
+@@ -88,6 +89,8 @@ static __be32 *
+ decode_sattr(__be32 *p, struct iattr *iap)
+ {
+ u32 tmp, tmp1;
++ uid_t uid = 0;
++ gid_t gid = 0;
+
+ iap->ia_valid = 0;
+
+@@ -101,12 +104,15 @@ decode_sattr(__be32 *p, struct iattr *ia
+ }
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_UID;
+- iap->ia_uid = tmp;
++ uid = tmp;
+ }
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_GID;
+- iap->ia_gid = tmp;
++ gid = tmp;
+ }
++ iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
++ iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
++ iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
+ if ((tmp = ntohl(*p++)) != (u32)-1) {
+ iap->ia_valid |= ATTR_SIZE;
+ iap->ia_size = tmp;
+@@ -151,8 +157,10 @@ encode_fattr(struct svc_rqst *rqstp, __b
+ *p++ = htonl(nfs_ftypes[type >> 12]);
+ *p++ = htonl((u32) stat->mode);
+ *p++ = htonl((u32) stat->nlink);
+- *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
+- *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
++ *p++ = htonl((u32) nfsd_ruid(rqstp,
++ TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag)));
++ *p++ = htonl((u32) nfsd_rgid(rqstp,
++ TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag)));
+
+ if (S_ISLNK(type) && stat->size > NFS_MAXPATHLEN) {
+ *p++ = htonl(NFS_MAXPATHLEN);
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/dlmglue.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/dlmglue.c
+--- linux-3.0.9/fs/ocfs2/dlmglue.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/dlmglue.c 2011-06-10 22:11:24.000000000 +0200
+@@ -2041,6 +2041,7 @@ static void __ocfs2_stuff_meta_lvb(struc
+ lvb->lvb_iclusters = cpu_to_be32(oi->ip_clusters);
+ lvb->lvb_iuid = cpu_to_be32(inode->i_uid);
+ lvb->lvb_igid = cpu_to_be32(inode->i_gid);
++ lvb->lvb_itag = cpu_to_be16(inode->i_tag);
+ lvb->lvb_imode = cpu_to_be16(inode->i_mode);
+ lvb->lvb_inlink = cpu_to_be16(inode->i_nlink);
+ lvb->lvb_iatime_packed =
+@@ -2091,6 +2092,7 @@ static void ocfs2_refresh_inode_from_lvb
+
+ inode->i_uid = be32_to_cpu(lvb->lvb_iuid);
+ inode->i_gid = be32_to_cpu(lvb->lvb_igid);
++ inode->i_tag = be16_to_cpu(lvb->lvb_itag);
+ inode->i_mode = be16_to_cpu(lvb->lvb_imode);
+ inode->i_nlink = be16_to_cpu(lvb->lvb_inlink);
+ ocfs2_unpack_timespec(&inode->i_atime,
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/dlmglue.h linux-3.0.9-vs2.3.2.1/fs/ocfs2/dlmglue.h
+--- linux-3.0.9/fs/ocfs2/dlmglue.h 2010-10-21 13:07:50.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/dlmglue.h 2011-06-10 22:11:24.000000000 +0200
+@@ -46,7 +46,8 @@ struct ocfs2_meta_lvb {
+ __be16 lvb_inlink;
+ __be32 lvb_iattr;
+ __be32 lvb_igeneration;
+- __be32 lvb_reserved2;
++ __be16 lvb_itag;
++ __be16 lvb_reserved2;
+ };
+
+ #define OCFS2_QINFO_LVB_VERSION 1
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/file.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/file.c
+--- linux-3.0.9/fs/ocfs2/file.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/file.c 2011-06-10 22:43:33.000000000 +0200
+@@ -1111,7 +1111,7 @@ int ocfs2_setattr(struct dentry *dentry,
+ attr->ia_valid &= ~ATTR_SIZE;
+
+ #define OCFS2_VALID_ATTRS (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_SIZE \
+- | ATTR_GID | ATTR_UID | ATTR_MODE)
++ | ATTR_GID | ATTR_UID | ATTR_TAG | ATTR_MODE)
+ if (!(attr->ia_valid & OCFS2_VALID_ATTRS))
+ return 0;
+
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/inode.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/inode.c
+--- linux-3.0.9/fs/ocfs2/inode.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -28,6 +28,7 @@
+ #include <linux/highmem.h>
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #include <asm/byteorder.h>
+
+@@ -78,11 +79,13 @@ void ocfs2_set_inode_flags(struct inode
+ {
+ unsigned int flags = OCFS2_I(inode)->ip_attr;
+
+- inode->i_flags &= ~(S_IMMUTABLE |
++ inode->i_flags &= ~(S_IMMUTABLE | S_IXUNLINK |
+ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+ if (flags & OCFS2_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
++ if (flags & OCFS2_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
+
+ if (flags & OCFS2_SYNC_FL)
+ inode->i_flags |= S_SYNC;
+@@ -92,25 +95,44 @@ void ocfs2_set_inode_flags(struct inode
+ inode->i_flags |= S_NOATIME;
+ if (flags & OCFS2_DIRSYNC_FL)
+ inode->i_flags |= S_DIRSYNC;
++
++ inode->i_vflags &= ~(V_BARRIER | V_COW);
++
++ if (flags & OCFS2_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ if (flags & OCFS2_COW_FL)
++ inode->i_vflags |= V_COW;
+ }
+
+ /* Propagate flags from i_flags to OCFS2_I(inode)->ip_attr */
+ void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi)
+ {
+ unsigned int flags = oi->vfs_inode.i_flags;
++ unsigned int vflags = oi->vfs_inode.i_vflags;
++
++ oi->ip_attr &= ~(OCFS2_SYNC_FL | OCFS2_APPEND_FL |
++ OCFS2_IMMUTABLE_FL | OCFS2_IXUNLINK_FL |
++ OCFS2_NOATIME_FL | OCFS2_DIRSYNC_FL |
++ OCFS2_BARRIER_FL | OCFS2_COW_FL);
++
++ if (flags & S_IMMUTABLE)
++ oi->ip_attr |= OCFS2_IMMUTABLE_FL;
++ if (flags & S_IXUNLINK)
++ oi->ip_attr |= OCFS2_IXUNLINK_FL;
+
+- oi->ip_attr &= ~(OCFS2_SYNC_FL|OCFS2_APPEND_FL|
+- OCFS2_IMMUTABLE_FL|OCFS2_NOATIME_FL|OCFS2_DIRSYNC_FL);
+ if (flags & S_SYNC)
+ oi->ip_attr |= OCFS2_SYNC_FL;
+ if (flags & S_APPEND)
+ oi->ip_attr |= OCFS2_APPEND_FL;
+- if (flags & S_IMMUTABLE)
+- oi->ip_attr |= OCFS2_IMMUTABLE_FL;
+ if (flags & S_NOATIME)
+ oi->ip_attr |= OCFS2_NOATIME_FL;
+ if (flags & S_DIRSYNC)
+ oi->ip_attr |= OCFS2_DIRSYNC_FL;
++
++ if (vflags & V_BARRIER)
++ oi->ip_attr |= OCFS2_BARRIER_FL;
++ if (vflags & V_COW)
++ oi->ip_attr |= OCFS2_COW_FL;
+ }
+
+ struct inode *ocfs2_ilookup(struct super_block *sb, u64 blkno)
+@@ -241,6 +263,8 @@ void ocfs2_populate_inode(struct inode *
+ struct super_block *sb;
+ struct ocfs2_super *osb;
+ int use_plocks = 1;
++ uid_t uid;
++ gid_t gid;
+
+ sb = inode->i_sb;
+ osb = OCFS2_SB(sb);
+@@ -269,8 +293,12 @@ void ocfs2_populate_inode(struct inode *
+ inode->i_generation = le32_to_cpu(fe->i_generation);
+ inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
+ inode->i_mode = le16_to_cpu(fe->i_mode);
+- inode->i_uid = le32_to_cpu(fe->i_uid);
+- inode->i_gid = le32_to_cpu(fe->i_gid);
++ uid = le32_to_cpu(fe->i_uid);
++ gid = le32_to_cpu(fe->i_gid);
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
++ /* le16_to_cpu(raw_inode->i_raw_tag)i */ 0);
+
+ /* Fast symlinks will have i_size but no allocated clusters. */
+ if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/inode.h linux-3.0.9-vs2.3.2.1/fs/ocfs2/inode.h
+--- linux-3.0.9/fs/ocfs2/inode.h 2011-01-05 21:50:26.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/inode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -151,6 +151,7 @@ struct buffer_head *ocfs2_bread(struct i
+
+ void ocfs2_set_inode_flags(struct inode *inode);
+ void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
++int ocfs2_sync_flags(struct inode *inode, int, int);
+
+ static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
+ {
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/ioctl.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/ioctl.c
+--- linux-3.0.9/fs/ocfs2/ioctl.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -78,7 +78,41 @@ static int ocfs2_get_inode_attr(struct i
+ return status;
+ }
+
+-static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
++int ocfs2_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
++ struct buffer_head *bh = NULL;
++ handle_t *handle = NULL;
++ int status;
++
++ status = ocfs2_inode_lock(inode, &bh, 1);
++ if (status < 0) {
++ mlog_errno(status);
++ return status;
++ }
++ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
++ if (IS_ERR(handle)) {
++ status = PTR_ERR(handle);
++ mlog_errno(status);
++ goto bail_unlock;
++ }
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ ocfs2_get_inode_flags(OCFS2_I(inode));
++
++ status = ocfs2_mark_inode_dirty(handle, inode, bh);
++ if (status < 0)
++ mlog_errno(status);
++
++ ocfs2_commit_trans(osb, handle);
++bail_unlock:
++ ocfs2_inode_unlock(inode, 1);
++ brelse(bh);
++ return status;
++}
++
++int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
+ unsigned mask)
+ {
+ struct ocfs2_inode_info *ocfs2_inode = OCFS2_I(inode);
+@@ -103,6 +137,11 @@ static int ocfs2_set_inode_attr(struct i
+ if (!S_ISDIR(inode->i_mode))
+ flags &= ~OCFS2_DIRSYNC_FL;
+
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ goto bail_unlock;
++ }
++
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+@@ -880,6 +919,7 @@ bail:
+ return status;
+ }
+
++
+ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_path.dentry->d_inode;
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/namei.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/namei.c
+--- linux-3.0.9/fs/ocfs2/namei.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/namei.c 2011-06-10 22:11:24.000000000 +0200
+@@ -41,6 +41,7 @@
+ #include <linux/slab.h>
+ #include <linux/highmem.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #include <cluster/masklog.h>
+
+@@ -477,6 +478,7 @@ static int __ocfs2_mknod_locked(struct i
+ struct ocfs2_dinode *fe = NULL;
+ struct ocfs2_extent_list *fel;
+ u16 feat;
++ tag_t tag;
+
+ *new_fe_bh = NULL;
+
+@@ -514,8 +516,11 @@ static int __ocfs2_mknod_locked(struct i
+ fe->i_suballoc_loc = cpu_to_le64(suballoc_loc);
+ fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
+ fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot);
+- fe->i_uid = cpu_to_le32(inode->i_uid);
+- fe->i_gid = cpu_to_le32(inode->i_gid);
++
++ tag = dx_current_fstag(osb->sb);
++ fe->i_uid = cpu_to_le32(TAGINO_UID(DX_TAG(inode), inode->i_uid, tag));
++ fe->i_gid = cpu_to_le32(TAGINO_GID(DX_TAG(inode), inode->i_gid, tag));
++ inode->i_tag = tag;
+ fe->i_mode = cpu_to_le16(inode->i_mode);
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
+ fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/ocfs2.h linux-3.0.9-vs2.3.2.1/fs/ocfs2/ocfs2.h
+--- linux-3.0.9/fs/ocfs2/ocfs2.h 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/ocfs2.h 2011-06-10 22:11:24.000000000 +0200
+@@ -272,6 +272,7 @@ enum ocfs2_mount_options
+ writes */
+ OCFS2_MOUNT_HB_NONE = 1 << 13, /* No heartbeat */
+ OCFS2_MOUNT_HB_GLOBAL = 1 << 14, /* Global heartbeat */
++ OCFS2_MOUNT_TAGGED = 1 << 15, /* use tagging */
+ };
+
+ #define OCFS2_OSB_SOFT_RO 0x0001
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/ocfs2_fs.h linux-3.0.9-vs2.3.2.1/fs/ocfs2/ocfs2_fs.h
+--- linux-3.0.9/fs/ocfs2/ocfs2_fs.h 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/ocfs2_fs.h 2011-06-10 22:11:24.000000000 +0200
+@@ -266,6 +266,11 @@
+ #define OCFS2_TOPDIR_FL FS_TOPDIR_FL /* Top of directory hierarchies*/
+ #define OCFS2_RESERVED_FL FS_RESERVED_FL /* reserved for ext2 lib */
+
++#define OCFS2_IXUNLINK_FL FS_IXUNLINK_FL /* Immutable invert on unlink */
++
++#define OCFS2_BARRIER_FL FS_BARRIER_FL /* Barrier for chroot() */
++#define OCFS2_COW_FL FS_COW_FL /* Copy on Write marker */
++
+ #define OCFS2_FL_VISIBLE FS_FL_USER_VISIBLE /* User visible flags */
+ #define OCFS2_FL_MODIFIABLE FS_FL_USER_MODIFIABLE /* User modifiable flags */
+
+diff -NurpP --minimal linux-3.0.9/fs/ocfs2/super.c linux-3.0.9-vs2.3.2.1/fs/ocfs2/super.c
+--- linux-3.0.9/fs/ocfs2/super.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/ocfs2/super.c 2011-06-15 02:40:14.000000000 +0200
+@@ -184,6 +184,7 @@ enum {
+ Opt_coherency_full,
+ Opt_resv_level,
+ Opt_dir_resv_level,
++ Opt_tag, Opt_notag, Opt_tagid,
+ Opt_err,
+ };
+
+@@ -215,6 +216,9 @@ static const match_table_t tokens = {
+ {Opt_coherency_full, "coherency=full"},
+ {Opt_resv_level, "resv_level=%u"},
+ {Opt_dir_resv_level, "dir_resv_level=%u"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
++ {Opt_tagid, "tagid=%u"},
+ {Opt_err, NULL}
+ };
+
+@@ -662,6 +666,13 @@ static int ocfs2_remount(struct super_bl
+ goto out;
+ }
+
++ if ((osb->s_mount_opt & OCFS2_MOUNT_TAGGED) !=
++ (parsed_options.mount_opt & OCFS2_MOUNT_TAGGED)) {
++ ret = -EINVAL;
++ mlog(ML_ERROR, "Cannot change tagging on remount\n");
++ goto out;
++ }
++
+ /* We're going to/from readonly mode. */
+ if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+ /* Disable quota accounting before remounting RO */
+@@ -1177,6 +1188,9 @@ static int ocfs2_fill_super(struct super
+
+ ocfs2_complete_mount_recovery(osb);
+
++ if (osb->s_mount_opt & OCFS2_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ if (ocfs2_mount_local(osb))
+ snprintf(nodestr, sizeof(nodestr), "local");
+ else
+@@ -1506,6 +1520,20 @@ static int ocfs2_parse_options(struct su
+ option < OCFS2_MAX_RESV_LEVEL)
+ mopt->dir_resv_level = option;
+ break;
++#ifndef CONFIG_TAGGING_NONE
++ case Opt_tag:
++ mopt->mount_opt |= OCFS2_MOUNT_TAGGED;
++ break;
++ case Opt_notag:
++ mopt->mount_opt &= ~OCFS2_MOUNT_TAGGED;
++ break;
++#endif
++#ifdef CONFIG_PROPAGATE
++ case Opt_tagid:
++ /* use args[0] */
++ mopt->mount_opt |= OCFS2_MOUNT_TAGGED;
++ break;
++#endif
+ default:
+ mlog(ML_ERROR,
+ "Unrecognized mount option \"%s\" "
+diff -NurpP --minimal linux-3.0.9/fs/open.c linux-3.0.9-vs2.3.2.1/fs/open.c
+--- linux-3.0.9/fs/open.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/open.c 2011-06-10 22:11:24.000000000 +0200
+@@ -30,6 +30,11 @@
+ #include <linux/fs_struct.h>
+ #include <linux/ima.h>
+ #include <linux/dnotify.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_cowbl.h>
++#include <linux/vserver/dlimit.h>
+
+ #include "internal.h"
+
+@@ -494,6 +499,12 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons
+ error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
+ if (error)
+ goto out;
++
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (error)
++ goto dput_and_out;
++#endif
+ inode = path.dentry->d_inode;
+
+ error = mnt_want_write(path.mnt);
+@@ -531,11 +542,11 @@ static int chown_common(struct path *pat
+ newattrs.ia_valid = ATTR_CTIME;
+ if (user != (uid_t) -1) {
+ newattrs.ia_valid |= ATTR_UID;
+- newattrs.ia_uid = user;
++ newattrs.ia_uid = dx_map_uid(user);
+ }
+ if (group != (gid_t) -1) {
+ newattrs.ia_valid |= ATTR_GID;
+- newattrs.ia_gid = group;
++ newattrs.ia_gid = dx_map_gid(group);
+ }
+ if (!S_ISDIR(inode->i_mode))
+ newattrs.ia_valid |=
+@@ -560,6 +571,10 @@ SYSCALL_DEFINE3(chown, const char __user
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
+ error = chown_common(&path, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+@@ -587,6 +602,10 @@ SYSCALL_DEFINE5(fchownat, int, dfd, cons
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
+ error = chown_common(&path, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+@@ -606,6 +625,10 @@ SYSCALL_DEFINE3(lchown, const char __use
+ error = mnt_want_write(path.mnt);
+ if (error)
+ goto out_release;
++#ifdef CONFIG_VSERVER_COWBL
++ error = cow_check_and_break(&path);
++ if (!error)
++#endif
+ error = chown_common(&path, user, group);
+ mnt_drop_write(path.mnt);
+ out_release:
+@@ -857,6 +880,7 @@ static void __put_unused_fd(struct files
+ __FD_CLR(fd, fdt->open_fds);
+ if (fd < files->next_fd)
+ files->next_fd = fd;
++ vx_openfd_dec(fd);
+ }
+
+ void put_unused_fd(unsigned int fd)
+diff -NurpP --minimal linux-3.0.9/fs/proc/array.c linux-3.0.9-vs2.3.2.1/fs/proc/array.c
+--- linux-3.0.9/fs/proc/array.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/array.c 2011-06-10 22:11:24.000000000 +0200
+@@ -81,6 +81,8 @@
+ #include <linux/pid_namespace.h>
+ #include <linux/ptrace.h>
+ #include <linux/tracehook.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+@@ -170,6 +172,9 @@ static inline void task_state(struct seq
+ rcu_read_lock();
+ ppid = pid_alive(p) ?
+ task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
++ if (unlikely(vx_current_initpid(p->pid)))
++ ppid = 0;
++
+ tpid = 0;
+ if (pid_alive(p)) {
+ struct task_struct *tracer = tracehook_tracer_task(p);
+@@ -287,7 +292,7 @@ static inline void task_sig(struct seq_f
+ }
+
+ static void render_cap_t(struct seq_file *m, const char *header,
+- kernel_cap_t *a)
++ struct vx_info *vxi, kernel_cap_t *a)
+ {
+ unsigned __capi;
+
+@@ -312,10 +317,11 @@ static inline void task_cap(struct seq_f
+ cap_bset = cred->cap_bset;
+ rcu_read_unlock();
+
+- render_cap_t(m, "CapInh:\t", &cap_inheritable);
+- render_cap_t(m, "CapPrm:\t", &cap_permitted);
+- render_cap_t(m, "CapEff:\t", &cap_effective);
+- render_cap_t(m, "CapBnd:\t", &cap_bset);
++ /* FIXME: maybe move the p->vx_info masking to __task_cred() ? */
++ render_cap_t(m, "CapInh:\t", p->vx_info, &cap_inheritable);
++ render_cap_t(m, "CapPrm:\t", p->vx_info, &cap_permitted);
++ render_cap_t(m, "CapEff:\t", p->vx_info, &cap_effective);
++ render_cap_t(m, "CapBnd:\t", p->vx_info, &cap_bset);
+ }
+
+ static inline void task_context_switch_counts(struct seq_file *m,
+@@ -337,6 +343,42 @@ static void task_cpus_allowed(struct seq
+ seq_putc(m, '\n');
+ }
+
++int proc_pid_nsproxy(struct seq_file *m, struct pid_namespace *ns,
++ struct pid *pid, struct task_struct *task)
++{
++ seq_printf(m, "Proxy:\t%p(%c)\n"
++ "Count:\t%u\n"
++ "uts:\t%p(%c)\n"
++ "ipc:\t%p(%c)\n"
++ "mnt:\t%p(%c)\n"
++ "pid:\t%p(%c)\n"
++ "net:\t%p(%c)\n",
++ task->nsproxy,
++ (task->nsproxy == init_task.nsproxy ? 'I' : '-'),
++ atomic_read(&task->nsproxy->count),
++ task->nsproxy->uts_ns,
++ (task->nsproxy->uts_ns == init_task.nsproxy->uts_ns ? 'I' : '-'),
++ task->nsproxy->ipc_ns,
++ (task->nsproxy->ipc_ns == init_task.nsproxy->ipc_ns ? 'I' : '-'),
++ task->nsproxy->mnt_ns,
++ (task->nsproxy->mnt_ns == init_task.nsproxy->mnt_ns ? 'I' : '-'),
++ task->nsproxy->pid_ns,
++ (task->nsproxy->pid_ns == init_task.nsproxy->pid_ns ? 'I' : '-'),
++ task->nsproxy->net_ns,
++ (task->nsproxy->net_ns == init_task.nsproxy->net_ns ? 'I' : '-'));
++ return 0;
++}
++
++void task_vs_id(struct seq_file *m, struct task_struct *task)
++{
++ if (task_vx_flags(task, VXF_HIDE_VINFO, 0))
++ return;
++
++ seq_printf(m, "VxID: %d\n", vx_task_xid(task));
++ seq_printf(m, "NxID: %d\n", nx_task_nid(task));
++}
++
++
+ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task)
+ {
+@@ -353,6 +395,7 @@ int proc_pid_status(struct seq_file *m,
+ task_cap(m, task);
+ task_cpus_allowed(m, task);
+ cpuset_task_status_allowed(m, task);
++ task_vs_id(m, task);
+ task_context_switch_counts(m, task);
+ return 0;
+ }
+@@ -462,6 +505,17 @@ static int do_task_stat(struct seq_file
+ /* convert nsec -> ticks */
+ start_time = nsec_to_clock_t(start_time);
+
++ /* fixup start time for virt uptime */
++ if (vx_flags(VXF_VIRT_UPTIME, 0)) {
++ unsigned long long bias =
++ current->vx_info->cvirt.bias_clock;
++
++ if (start_time > bias)
++ start_time -= bias;
++ else
++ start_time = 0;
++ }
++
+ seq_printf(m, "%d (%s) %c %d %d %d %d %d %u %lu \
+ %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
+ %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n",
+diff -NurpP --minimal linux-3.0.9/fs/proc/base.c linux-3.0.9-vs2.3.2.1/fs/proc/base.c
+--- linux-3.0.9/fs/proc/base.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/proc/base.c 2011-11-15 17:37:07.000000000 +0100
+@@ -83,6 +83,8 @@
+ #include <linux/pid_namespace.h>
+ #include <linux/fs_struct.h>
+ #include <linux/slab.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
+ #ifdef CONFIG_HARDWALL
+ #include <asm/hardwall.h>
+ #endif
+@@ -1102,11 +1104,16 @@ static ssize_t oom_adjust_write(struct f
+ goto err_task_lock;
+ }
+
+- if (oom_adjust < task->signal->oom_adj && !capable(CAP_SYS_RESOURCE)) {
++ if (oom_adjust < task->signal->oom_adj &&
++ !vx_capable(CAP_SYS_RESOURCE, VXC_OOM_ADJUST)) {
+ err = -EACCES;
+ goto err_sighand;
+ }
+
++ /* prevent guest processes from circumventing the oom killer */
++ if (vx_current_xid() && (oom_adjust == OOM_DISABLE))
++ oom_adjust = OOM_ADJUST_MIN;
++
+ if (oom_adjust != task->signal->oom_adj) {
+ if (oom_adjust == OOM_DISABLE)
+ atomic_inc(&task->mm->oom_disable_count);
+@@ -1275,7 +1282,7 @@ static ssize_t proc_loginuid_write(struc
+ ssize_t length;
+ uid_t loginuid;
+
+- if (!capable(CAP_AUDIT_CONTROL))
++ if (!vx_capable(CAP_AUDIT_CONTROL, VXC_AUDIT_CONTROL))
+ return -EPERM;
+
+ rcu_read_lock();
+@@ -1722,6 +1729,8 @@ struct inode *proc_pid_make_inode(struct
+ inode->i_gid = cred->egid;
+ rcu_read_unlock();
+ }
++ /* procfs is xid tagged */
++ inode->i_tag = (tag_t)vx_task_xid(task);
+ security_task_to_inode(task, inode);
+
+ out:
+@@ -1758,6 +1767,8 @@ int pid_getattr(struct vfsmount *mnt, st
+
+ /* dentry stuff */
+
++static unsigned name_to_int(struct dentry *dentry);
++
+ /*
+ * Exceptional case: normally we are not allowed to unhash a busy
+ * directory. In this case, however, we can do it - no aliasing problems
+@@ -1786,6 +1797,12 @@ int pid_revalidate(struct dentry *dentry
+ task = get_proc_task(inode);
+
+ if (task) {
++ unsigned pid = name_to_int(dentry);
++
++ if (pid != ~0U && pid != vx_map_pid(task->pid)) {
++ put_task_struct(task);
++ goto drop;
++ }
+ if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
+ task_dumpable(task)) {
+ rcu_read_lock();
+@@ -1802,6 +1819,7 @@ int pid_revalidate(struct dentry *dentry
+ put_task_struct(task);
+ return 1;
+ }
++drop:
+ d_drop(dentry);
+ return 0;
+ }
+@@ -2291,6 +2309,13 @@ static struct dentry *proc_pident_lookup
+ if (!task)
+ goto out_no_task;
+
++ /* TODO: maybe we can come up with a generic approach? */
++ if (task_vx_flags(task, VXF_HIDE_VINFO, 0) &&
++ (dentry->d_name.len == 5) &&
++ (!memcmp(dentry->d_name.name, "vinfo", 5) ||
++ !memcmp(dentry->d_name.name, "ninfo", 5)))
++ goto out;
++
+ /*
+ * Yes, it does not scale. And it should not. Don't add
+ * new entries into /proc/<tgid>/ without very good reasons.
+@@ -2676,7 +2701,7 @@ out_iput:
+ static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry)
+ {
+ struct dentry *error;
+- struct task_struct *task = get_proc_task(dir);
++ struct task_struct *task = get_proc_task_real(dir);
+ const struct pid_entry *p, *last;
+
+ error = ERR_PTR(-ENOENT);
+@@ -2783,6 +2808,9 @@ static int proc_pid_personality(struct s
+ static const struct file_operations proc_task_operations;
+ static const struct inode_operations proc_task_inode_operations;
+
++extern int proc_pid_vx_info(struct task_struct *, char *);
++extern int proc_pid_nx_info(struct task_struct *, char *);
++
+ static const struct pid_entry tgid_base_stuff[] = {
+ DIR("task", S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
+ DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+@@ -2846,6 +2874,8 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_CGROUPS
+ REG("cgroup", S_IRUGO, proc_cgroup_operations),
+ #endif
++ INF("vinfo", S_IRUGO, proc_pid_vx_info),
++ INF("ninfo", S_IRUGO, proc_pid_nx_info),
+ INF("oom_score", S_IRUGO, proc_oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adjust_operations),
+ REG("oom_score_adj", S_IRUGO|S_IWUSR, proc_oom_score_adj_operations),
+@@ -2865,6 +2895,7 @@ static const struct pid_entry tgid_base_
+ #ifdef CONFIG_HARDWALL
+ INF("hardwall", S_IRUGO, proc_pid_hardwall),
+ #endif
++ ONE("nsproxy", S_IRUGO, proc_pid_nsproxy),
+ };
+
+ static int proc_tgid_base_readdir(struct file * filp,
+@@ -3057,7 +3088,7 @@ retry:
+ iter.task = NULL;
+ pid = find_ge_pid(iter.tgid, ns);
+ if (pid) {
+- iter.tgid = pid_nr_ns(pid, ns);
++ iter.tgid = pid_unmapped_nr_ns(pid, ns);
+ iter.task = pid_task(pid, PIDTYPE_PID);
+ /* What we to know is if the pid we have find is the
+ * pid of a thread_group_leader. Testing for task
+@@ -3087,7 +3118,7 @@ static int proc_pid_fill_cache(struct fi
+ struct tgid_iter iter)
+ {
+ char name[PROC_NUMBUF];
+- int len = snprintf(name, sizeof(name), "%d", iter.tgid);
++ int len = snprintf(name, sizeof(name), "%d", vx_map_tgid(iter.tgid));
+ return proc_fill_cache(filp, dirent, filldir, name, len,
+ proc_pid_instantiate, iter.task, NULL);
+ }
+@@ -3104,7 +3135,7 @@ int proc_pid_readdir(struct file * filp,
+ goto out_no_task;
+ nr = filp->f_pos - FIRST_PROCESS_ENTRY;
+
+- reaper = get_proc_task(filp->f_path.dentry->d_inode);
++ reaper = get_proc_task_real(filp->f_path.dentry->d_inode);
+ if (!reaper)
+ goto out_no_task;
+
+@@ -3121,6 +3152,8 @@ int proc_pid_readdir(struct file * filp,
+ iter.task;
+ iter.tgid += 1, iter = next_tgid(ns, iter)) {
+ filp->f_pos = iter.tgid + TGID_OFFSET;
++ if (!vx_proc_task_visible(iter.task))
++ continue;
+ if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
+ put_task_struct(iter.task);
+ goto out;
+@@ -3274,6 +3307,8 @@ static struct dentry *proc_task_lookup(s
+ tid = name_to_int(dentry);
+ if (tid == ~0U)
+ goto out;
++ if (vx_current_initpid(tid))
++ goto out;
+
+ ns = dentry->d_sb->s_fs_info;
+ rcu_read_lock();
+diff -NurpP --minimal linux-3.0.9/fs/proc/generic.c linux-3.0.9-vs2.3.2.1/fs/proc/generic.c
+--- linux-3.0.9/fs/proc/generic.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/generic.c 2011-06-10 22:11:24.000000000 +0200
+@@ -22,6 +22,7 @@
+ #include <linux/bitops.h>
+ #include <linux/spinlock.h>
+ #include <linux/completion.h>
++#include <linux/vserver/inode.h>
+ #include <asm/uaccess.h>
+
+ #include "internal.h"
+@@ -424,11 +425,15 @@ struct dentry *proc_lookup_de(struct pro
+ for (de = de->subdir; de ; de = de->next) {
+ if (de->namelen != dentry->d_name.len)
+ continue;
++ if (!vx_hide_check(0, de->vx_flags))
++ continue;
+ if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
+ pde_get(de);
+ spin_unlock(&proc_subdir_lock);
+ error = -EINVAL;
+ inode = proc_get_inode(dir->i_sb, de);
++ /* generic proc entries belong to the host */
++ inode->i_tag = 0;
+ goto out_unlock;
+ }
+ }
+@@ -506,6 +511,8 @@ int proc_readdir_de(struct proc_dir_entr
+
+ /* filldir passes info to user space */
+ pde_get(de);
++ if (!vx_hide_check(0, de->vx_flags))
++ goto skip;
+ spin_unlock(&proc_subdir_lock);
+ if (filldir(dirent, de->name, de->namelen, filp->f_pos,
+ de->low_ino, de->mode >> 12) < 0) {
+@@ -513,6 +520,7 @@ int proc_readdir_de(struct proc_dir_entr
+ goto out;
+ }
+ spin_lock(&proc_subdir_lock);
++ skip:
+ filp->f_pos++;
+ next = de->next;
+ pde_put(de);
+@@ -627,6 +635,7 @@ static struct proc_dir_entry *__proc_cre
+ ent->nlink = nlink;
+ atomic_set(&ent->count, 1);
+ ent->pde_users = 0;
++ ent->vx_flags = IATTR_PROC_DEFAULT;
+ spin_lock_init(&ent->pde_unload_lock);
+ ent->pde_unload_completion = NULL;
+ INIT_LIST_HEAD(&ent->pde_openers);
+@@ -650,7 +659,8 @@ struct proc_dir_entry *proc_symlink(cons
+ kfree(ent->data);
+ kfree(ent);
+ ent = NULL;
+- }
++ } else
++ ent->vx_flags = IATTR_PROC_SYMLINK;
+ } else {
+ kfree(ent);
+ ent = NULL;
+diff -NurpP --minimal linux-3.0.9/fs/proc/inode.c linux-3.0.9-vs2.3.2.1/fs/proc/inode.c
+--- linux-3.0.9/fs/proc/inode.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -442,6 +442,8 @@ struct inode *proc_get_inode(struct supe
+ inode->i_uid = de->uid;
+ inode->i_gid = de->gid;
+ }
++ if (de->vx_flags)
++ PROC_I(inode)->vx_flags = de->vx_flags;
+ if (de->size)
+ inode->i_size = de->size;
+ if (de->nlink)
+diff -NurpP --minimal linux-3.0.9/fs/proc/internal.h linux-3.0.9-vs2.3.2.1/fs/proc/internal.h
+--- linux-3.0.9/fs/proc/internal.h 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/internal.h 2011-06-10 22:11:24.000000000 +0200
+@@ -10,6 +10,7 @@
+ */
+
+ #include <linux/proc_fs.h>
++#include <linux/vs_pid.h>
+
+ extern struct proc_dir_entry proc_root;
+ #ifdef CONFIG_PROC_SYSCTL
+@@ -51,6 +52,9 @@ extern int proc_pid_status(struct seq_fi
+ struct pid *pid, struct task_struct *task);
+ extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task);
++extern int proc_pid_nsproxy(struct seq_file *m, struct pid_namespace *ns,
++ struct pid *pid, struct task_struct *task);
++
+ extern loff_t mem_lseek(struct file *file, loff_t offset, int orig);
+
+ extern const struct file_operations proc_maps_operations;
+@@ -76,11 +80,16 @@ static inline struct pid *proc_pid(struc
+ return PROC_I(inode)->pid;
+ }
+
+-static inline struct task_struct *get_proc_task(struct inode *inode)
++static inline struct task_struct *get_proc_task_real(struct inode *inode)
+ {
+ return get_pid_task(proc_pid(inode), PIDTYPE_PID);
+ }
+
++static inline struct task_struct *get_proc_task(struct inode *inode)
++{
++ return vx_get_proc_task(inode, proc_pid(inode));
++}
++
+ static inline int proc_fd(struct inode *inode)
+ {
+ return PROC_I(inode)->fd;
+diff -NurpP --minimal linux-3.0.9/fs/proc/loadavg.c linux-3.0.9-vs2.3.2.1/fs/proc/loadavg.c
+--- linux-3.0.9/fs/proc/loadavg.c 2009-09-10 15:26:23.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/loadavg.c 2011-06-10 22:11:24.000000000 +0200
+@@ -12,15 +12,27 @@
+
+ static int loadavg_proc_show(struct seq_file *m, void *v)
+ {
++ unsigned long running;
++ unsigned int threads;
+ unsigned long avnrun[3];
+
+ get_avenrun(avnrun, FIXED_1/200, 0);
+
++ if (vx_flags(VXF_VIRT_LOAD, 0)) {
++ struct vx_info *vxi = current_vx_info();
++
++ running = atomic_read(&vxi->cvirt.nr_running);
++ threads = atomic_read(&vxi->cvirt.nr_threads);
++ } else {
++ running = nr_running();
++ threads = nr_threads;
++ }
++
+ seq_printf(m, "%lu.%02lu %lu.%02lu %lu.%02lu %ld/%d %d\n",
+ LOAD_INT(avnrun[0]), LOAD_FRAC(avnrun[0]),
+ LOAD_INT(avnrun[1]), LOAD_FRAC(avnrun[1]),
+ LOAD_INT(avnrun[2]), LOAD_FRAC(avnrun[2]),
+- nr_running(), nr_threads,
++ running, threads,
+ task_active_pid_ns(current)->last_pid);
+ return 0;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/proc/meminfo.c linux-3.0.9-vs2.3.2.1/fs/proc/meminfo.c
+--- linux-3.0.9/fs/proc/meminfo.c 2011-03-15 18:07:33.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/proc/meminfo.c 2011-06-10 22:11:24.000000000 +0200
+@@ -39,7 +39,8 @@ static int meminfo_proc_show(struct seq_
+ allowed = ((totalram_pages - hugetlb_total_pages())
+ * sysctl_overcommit_ratio / 100) + total_swap_pages;
+
+- cached = global_page_state(NR_FILE_PAGES) -
++ cached = vx_flags(VXF_VIRT_MEM, 0) ?
++ vx_vsi_cached(&i) : global_page_state(NR_FILE_PAGES) -
+ total_swapcache_pages - i.bufferram;
+ if (cached < 0)
+ cached = 0;
+diff -NurpP --minimal linux-3.0.9/fs/proc/root.c linux-3.0.9-vs2.3.2.1/fs/proc/root.c
+--- linux-3.0.9/fs/proc/root.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/proc/root.c 2011-06-22 12:39:15.000000000 +0200
+@@ -18,9 +18,14 @@
+ #include <linux/bitops.h>
+ #include <linux/mount.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vserver/inode.h>
+
+ #include "internal.h"
+
++struct proc_dir_entry *proc_virtual;
++
++extern void proc_vx_init(void);
++
+ static int proc_test_super(struct super_block *sb, void *data)
+ {
+ return sb->s_fs_info == data;
+@@ -125,6 +130,7 @@ void __init proc_root_init(void)
+ #endif
+ proc_mkdir("bus", NULL);
+ proc_sys_init();
++ proc_vx_init();
+ }
+
+ static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat
+@@ -193,6 +199,7 @@ struct proc_dir_entry proc_root = {
+ .proc_iops = &proc_root_inode_operations,
+ .proc_fops = &proc_root_operations,
+ .parent = &proc_root,
++ .vx_flags = IATTR_ADMIN | IATTR_WATCH,
+ };
+
+ int pid_ns_prepare_proc(struct pid_namespace *ns)
+diff -NurpP --minimal linux-3.0.9/fs/proc/uptime.c linux-3.0.9-vs2.3.2.1/fs/proc/uptime.c
+--- linux-3.0.9/fs/proc/uptime.c 2009-12-03 20:02:53.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/proc/uptime.c 2011-06-10 22:11:24.000000000 +0200
+@@ -4,22 +4,22 @@
+ #include <linux/sched.h>
+ #include <linux/seq_file.h>
+ #include <linux/time.h>
+-#include <linux/kernel_stat.h>
++#include <linux/vserver/cvirt.h>
+ #include <asm/cputime.h>
+
+ static int uptime_proc_show(struct seq_file *m, void *v)
+ {
+ struct timespec uptime;
+ struct timespec idle;
+- int i;
+- cputime_t idletime = cputime_zero;
+-
+- for_each_possible_cpu(i)
+- idletime = cputime64_add(idletime, kstat_cpu(i).cpustat.idle);
++ cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
+
+ do_posix_clock_monotonic_gettime(&uptime);
+ monotonic_to_bootbased(&uptime);
+ cputime_to_timespec(idletime, &idle);
++
++ if (vx_flags(VXF_VIRT_UPTIME, 0))
++ vx_vsi_uptime(&uptime, &idle);
++
+ seq_printf(m, "%lu.%02lu %lu.%02lu\n",
+ (unsigned long) uptime.tv_sec,
+ (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
+diff -NurpP --minimal linux-3.0.9/fs/quota/dquot.c linux-3.0.9-vs2.3.2.1/fs/quota/dquot.c
+--- linux-3.0.9/fs/quota/dquot.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/quota/dquot.c 2011-06-10 22:11:24.000000000 +0200
+@@ -1548,6 +1548,9 @@ int __dquot_alloc_space(struct inode *in
+ int reserve = flags & DQUOT_SPACE_RESERVE;
+ int nofail = flags & DQUOT_SPACE_NOFAIL;
+
++ if ((ret = dl_alloc_space(inode, number)))
++ return ret;
++
+ /*
+ * First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex
+@@ -1602,6 +1605,9 @@ int dquot_alloc_inode(const struct inode
+ int cnt, ret = 0;
+ char warntype[MAXQUOTAS];
+
++ if ((ret = dl_alloc_inode(inode)))
++ return ret;
++
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
+ if (!dquot_active(inode))
+@@ -1672,6 +1678,8 @@ void __dquot_free_space(struct inode *in
+ char warntype[MAXQUOTAS];
+ int reserve = flags & DQUOT_SPACE_RESERVE;
+
++ dl_free_space(inode, number);
++
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
+ if (!dquot_active(inode)) {
+@@ -1710,6 +1718,8 @@ void dquot_free_inode(const struct inode
+ unsigned int cnt;
+ char warntype[MAXQUOTAS];
+
++ dl_free_inode(inode);
++
+ /* First test before acquiring mutex - solves deadlocks when we
+ * re-enter the quota code and are already holding the mutex */
+ if (!dquot_active(inode))
+diff -NurpP --minimal linux-3.0.9/fs/quota/quota.c linux-3.0.9-vs2.3.2.1/fs/quota/quota.c
+--- linux-3.0.9/fs/quota/quota.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/quota/quota.c 2011-11-15 17:37:07.000000000 +0100
+@@ -8,6 +8,7 @@
+ #include <linux/fs.h>
+ #include <linux/namei.h>
+ #include <linux/slab.h>
++#include <linux/vs_context.h>
+ #include <asm/current.h>
+ #include <asm/uaccess.h>
+ #include <linux/kernel.h>
+@@ -38,7 +39,7 @@ static int check_quotactl_permission(str
+ break;
+ /*FALLTHROUGH*/
+ default:
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
+ return -EPERM;
+ }
+
+@@ -293,6 +294,46 @@ static int do_quotactl(struct super_bloc
+ }
+ }
+
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++
++#include <linux/vroot.h>
++#include <linux/major.h>
++#include <linux/module.h>
++#include <linux/kallsyms.h>
++#include <linux/vserver/debug.h>
++
++static vroot_grb_func *vroot_get_real_bdev = NULL;
++
++static DEFINE_SPINLOCK(vroot_grb_lock);
++
++int register_vroot_grb(vroot_grb_func *func) {
++ int ret = -EBUSY;
++
++ spin_lock(&vroot_grb_lock);
++ if (!vroot_get_real_bdev) {
++ vroot_get_real_bdev = func;
++ ret = 0;
++ }
++ spin_unlock(&vroot_grb_lock);
++ return ret;
++}
++EXPORT_SYMBOL(register_vroot_grb);
++
++int unregister_vroot_grb(vroot_grb_func *func) {
++ int ret = -EINVAL;
++
++ spin_lock(&vroot_grb_lock);
++ if (vroot_get_real_bdev) {
++ vroot_get_real_bdev = NULL;
++ ret = 0;
++ }
++ spin_unlock(&vroot_grb_lock);
++ return ret;
++}
++EXPORT_SYMBOL(unregister_vroot_grb);
++
++#endif
++
+ /*
+ * look up a superblock on which quota ops will be performed
+ * - use the name of a block device to find the superblock thereon
+@@ -310,6 +351,22 @@ static struct super_block *quotactl_bloc
+ putname(tmp);
+ if (IS_ERR(bdev))
+ return ERR_CAST(bdev);
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++ if (bdev && bdev->bd_inode &&
++ imajor(bdev->bd_inode) == VROOT_MAJOR) {
++ struct block_device *bdnew = (void *)-EINVAL;
++
++ if (vroot_get_real_bdev)
++ bdnew = vroot_get_real_bdev(bdev);
++ else
++ vxdprintk(VXD_CBIT(misc, 0),
++ "vroot_get_real_bdev not set");
++ bdput(bdev);
++ if (IS_ERR(bdnew))
++ return ERR_PTR(PTR_ERR(bdnew));
++ bdev = bdnew;
++ }
++#endif
+ sb = get_super(bdev);
+ bdput(bdev);
+ if (!sb)
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/file.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/file.c
+--- linux-3.0.9/fs/reiserfs/file.c 2011-01-05 21:50:26.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/file.c 2011-06-10 22:11:24.000000000 +0200
+@@ -312,4 +312,5 @@ const struct inode_operations reiserfs_f
+ .listxattr = reiserfs_listxattr,
+ .removexattr = reiserfs_removexattr,
+ .permission = reiserfs_permission,
++ .sync_flags = reiserfs_sync_flags,
+ };
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/inode.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/inode.c
+--- linux-3.0.9/fs/reiserfs/inode.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <linux/writeback.h>
+ #include <linux/quotaops.h>
+ #include <linux/swap.h>
++#include <linux/vs_tag.h>
+
+ int reiserfs_commit_write(struct file *f, struct page *page,
+ unsigned from, unsigned to);
+@@ -1131,6 +1132,8 @@ static void init_inode(struct inode *ino
+ struct buffer_head *bh;
+ struct item_head *ih;
+ __u32 rdev;
++ uid_t uid;
++ gid_t gid;
+ //int version = ITEM_VERSION_1;
+
+ bh = PATH_PLAST_BUFFER(path);
+@@ -1151,12 +1154,13 @@ static void init_inode(struct inode *ino
+ (struct stat_data_v1 *)B_I_PITEM(bh, ih);
+ unsigned long blocks;
+
++ uid = sd_v1_uid(sd);
++ gid = sd_v1_gid(sd);
++
+ set_inode_item_key_version(inode, KEY_FORMAT_3_5);
+ set_inode_sd_version(inode, STAT_DATA_V1);
+ inode->i_mode = sd_v1_mode(sd);
+ inode->i_nlink = sd_v1_nlink(sd);
+- inode->i_uid = sd_v1_uid(sd);
+- inode->i_gid = sd_v1_gid(sd);
+ inode->i_size = sd_v1_size(sd);
+ inode->i_atime.tv_sec = sd_v1_atime(sd);
+ inode->i_mtime.tv_sec = sd_v1_mtime(sd);
+@@ -1198,11 +1202,12 @@ static void init_inode(struct inode *ino
+ // (directories and symlinks)
+ struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih);
+
++ uid = sd_v2_uid(sd);
++ gid = sd_v2_gid(sd);
++
+ inode->i_mode = sd_v2_mode(sd);
+ inode->i_nlink = sd_v2_nlink(sd);
+- inode->i_uid = sd_v2_uid(sd);
+ inode->i_size = sd_v2_size(sd);
+- inode->i_gid = sd_v2_gid(sd);
+ inode->i_mtime.tv_sec = sd_v2_mtime(sd);
+ inode->i_atime.tv_sec = sd_v2_atime(sd);
+ inode->i_ctime.tv_sec = sd_v2_ctime(sd);
+@@ -1232,6 +1237,10 @@ static void init_inode(struct inode *ino
+ sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode);
+ }
+
++ inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
++ inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
++ inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0);
++
+ pathrelse(path);
+ if (S_ISREG(inode->i_mode)) {
+ inode->i_op = &reiserfs_file_inode_operations;
+@@ -1254,13 +1263,15 @@ static void init_inode(struct inode *ino
+ static void inode2sd(void *sd, struct inode *inode, loff_t size)
+ {
+ struct stat_data *sd_v2 = (struct stat_data *)sd;
++ uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
++ gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
+ __u16 flags;
+
++ set_sd_v2_uid(sd_v2, uid);
++ set_sd_v2_gid(sd_v2, gid);
+ set_sd_v2_mode(sd_v2, inode->i_mode);
+ set_sd_v2_nlink(sd_v2, inode->i_nlink);
+- set_sd_v2_uid(sd_v2, inode->i_uid);
+ set_sd_v2_size(sd_v2, size);
+- set_sd_v2_gid(sd_v2, inode->i_gid);
+ set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec);
+ set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec);
+ set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec);
+@@ -2863,14 +2874,19 @@ int reiserfs_commit_write(struct file *f
+ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode)
+ {
+ if (reiserfs_attrs(inode->i_sb)) {
+- if (sd_attrs & REISERFS_SYNC_FL)
+- inode->i_flags |= S_SYNC;
+- else
+- inode->i_flags &= ~S_SYNC;
+ if (sd_attrs & REISERFS_IMMUTABLE_FL)
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (sd_attrs & REISERFS_IXUNLINK_FL)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
++
++ if (sd_attrs & REISERFS_SYNC_FL)
++ inode->i_flags |= S_SYNC;
++ else
++ inode->i_flags &= ~S_SYNC;
+ if (sd_attrs & REISERFS_APPEND_FL)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -2883,6 +2899,15 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs,
+ REISERFS_I(inode)->i_flags |= i_nopack_mask;
+ else
+ REISERFS_I(inode)->i_flags &= ~i_nopack_mask;
++
++ if (sd_attrs & REISERFS_BARRIER_FL)
++ inode->i_vflags |= V_BARRIER;
++ else
++ inode->i_vflags &= ~V_BARRIER;
++ if (sd_attrs & REISERFS_COW_FL)
++ inode->i_vflags |= V_COW;
++ else
++ inode->i_vflags &= ~V_COW;
+ }
+ }
+
+@@ -2893,6 +2918,11 @@ void i_attrs_to_sd_attrs(struct inode *i
+ *sd_attrs |= REISERFS_IMMUTABLE_FL;
+ else
+ *sd_attrs &= ~REISERFS_IMMUTABLE_FL;
++ if (inode->i_flags & S_IXUNLINK)
++ *sd_attrs |= REISERFS_IXUNLINK_FL;
++ else
++ *sd_attrs &= ~REISERFS_IXUNLINK_FL;
++
+ if (inode->i_flags & S_SYNC)
+ *sd_attrs |= REISERFS_SYNC_FL;
+ else
+@@ -2905,6 +2935,15 @@ void i_attrs_to_sd_attrs(struct inode *i
+ *sd_attrs |= REISERFS_NOTAIL_FL;
+ else
+ *sd_attrs &= ~REISERFS_NOTAIL_FL;
++
++ if (inode->i_vflags & V_BARRIER)
++ *sd_attrs |= REISERFS_BARRIER_FL;
++ else
++ *sd_attrs &= ~REISERFS_BARRIER_FL;
++ if (inode->i_vflags & V_COW)
++ *sd_attrs |= REISERFS_COW_FL;
++ else
++ *sd_attrs &= ~REISERFS_COW_FL;
+ }
+ }
+
+@@ -3148,7 +3187,8 @@ int reiserfs_setattr(struct dentry *dent
+ }
+
+ if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++ (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
+ struct reiserfs_transaction_handle th;
+ int jbegin_count =
+ 2 *
+@@ -3177,6 +3217,9 @@ int reiserfs_setattr(struct dentry *dent
+ inode->i_uid = attr->ia_uid;
+ if (attr->ia_valid & ATTR_GID)
+ inode->i_gid = attr->ia_gid;
++ if ((attr->ia_valid & ATTR_TAG) &&
++ IS_TAGGED(inode))
++ inode->i_tag = attr->ia_tag;
+ mark_inode_dirty(inode);
+ error = journal_end(&th, inode->i_sb, jbegin_count);
+ if (error)
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/ioctl.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/ioctl.c
+--- linux-3.0.9/fs/reiserfs/ioctl.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -11,6 +11,21 @@
+ #include <linux/pagemap.h>
+ #include <linux/compat.h>
+
++
++int reiserfs_sync_flags(struct inode *inode, int flags, int vflags)
++{
++ __u16 sd_attrs = 0;
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++
++ i_attrs_to_sd_attrs(inode, &sd_attrs);
++ REISERFS_I(inode)->i_attrs = sd_attrs;
++ inode->i_ctime = CURRENT_TIME_SEC;
++ mark_inode_dirty(inode);
++ return 0;
++}
++
+ /*
+ * reiserfs_ioctl - handler for ioctl for inode
+ * supported commands:
+@@ -22,7 +37,7 @@
+ long reiserfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+ {
+ struct inode *inode = filp->f_path.dentry->d_inode;
+- unsigned int flags;
++ unsigned int flags, oldflags;
+ int err = 0;
+
+ reiserfs_write_lock(inode->i_sb);
+@@ -47,6 +62,7 @@ long reiserfs_ioctl(struct file *filp, u
+
+ flags = REISERFS_I(inode)->i_attrs;
+ i_attrs_to_sd_attrs(inode, (__u16 *) & flags);
++ flags &= REISERFS_FL_USER_VISIBLE;
+ err = put_user(flags, (int __user *)arg);
+ break;
+ case REISERFS_IOC_SETFLAGS:{
+@@ -67,6 +83,10 @@ long reiserfs_ioctl(struct file *filp, u
+ err = -EFAULT;
+ goto setflags_out;
+ }
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -EACCES;
++ }
+ /*
+ * Is it quota file? Do not allow user to mess with it
+ */
+@@ -91,6 +111,10 @@ long reiserfs_ioctl(struct file *filp, u
+ goto setflags_out;
+ }
+ }
++
++ oldflags = REISERFS_I(inode)->i_attrs;
++ flags &= REISERFS_FL_USER_MODIFIABLE;
++ flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE;
+ sd_attrs_to_i_attrs(flags, inode);
+ REISERFS_I(inode)->i_attrs = flags;
+ inode->i_ctime = CURRENT_TIME_SEC;
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/namei.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/namei.c
+--- linux-3.0.9/fs/reiserfs/namei.c 2011-05-22 16:17:53.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/namei.c 2011-06-10 22:11:24.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <linux/reiserfs_acl.h>
+ #include <linux/reiserfs_xattr.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_tag.h>
+
+ #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
+ #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
+@@ -362,6 +363,7 @@ static struct dentry *reiserfs_lookup(st
+ if (retval == IO_ERROR) {
+ return ERR_PTR(-EIO);
+ }
++ dx_propagate_tag(nd, inode);
+
+ return d_splice_alias(inode, dentry);
+ }
+@@ -1529,6 +1531,7 @@ const struct inode_operations reiserfs_d
+ .listxattr = reiserfs_listxattr,
+ .removexattr = reiserfs_removexattr,
+ .permission = reiserfs_permission,
++ .sync_flags = reiserfs_sync_flags,
+ };
+
+ /*
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/super.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/super.c
+--- linux-3.0.9/fs/reiserfs/super.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/super.c 2011-06-10 22:11:24.000000000 +0200
+@@ -899,6 +899,14 @@ static int reiserfs_parse_options(struct
+ {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ #endif
++#ifndef CONFIG_TAGGING_NONE
++ {"tagxid",.setmask = 1 << REISERFS_TAGGED},
++ {"tag",.setmask = 1 << REISERFS_TAGGED},
++ {"notag",.clrmask = 1 << REISERFS_TAGGED},
++#endif
++#ifdef CONFIG_PROPAGATE
++ {"tag",.arg_required = 'T',.values = NULL},
++#endif
+ #ifdef CONFIG_REISERFS_FS_POSIX_ACL
+ {"acl",.setmask = 1 << REISERFS_POSIXACL},
+ {"noacl",.clrmask = 1 << REISERFS_POSIXACL},
+@@ -1208,6 +1216,14 @@ static int reiserfs_remount(struct super
+ handle_quota_files(s, qf_names, &qfmt);
+ #endif
+
++ if ((mount_options & (1 << REISERFS_TAGGED)) &&
++ !(s->s_flags & MS_TAGGED)) {
++ reiserfs_warning(s, "super-vs01",
++ "reiserfs: tagging not permitted on remount.");
++ err = -EINVAL;
++ goto out_err;
++ }
++
+ handle_attrs(s);
+
+ /* Add options that are safe here */
+@@ -1690,6 +1706,10 @@ static int reiserfs_fill_super(struct su
+ goto error;
+ }
+
++ /* map mount option tagxid */
++ if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGGED))
++ s->s_flags |= MS_TAGGED;
++
+ rs = SB_DISK_SUPER_BLOCK(s);
+ /* Let's do basic sanity check to verify that underlying device is not
+ smaller than the filesystem. If the check fails then abort and scream,
+diff -NurpP --minimal linux-3.0.9/fs/reiserfs/xattr.c linux-3.0.9-vs2.3.2.1/fs/reiserfs/xattr.c
+--- linux-3.0.9/fs/reiserfs/xattr.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/reiserfs/xattr.c 2011-06-22 12:39:15.000000000 +0200
+@@ -40,6 +40,7 @@
+ #include <linux/errno.h>
+ #include <linux/gfp.h>
+ #include <linux/fs.h>
++#include <linux/mount.h>
+ #include <linux/file.h>
+ #include <linux/pagemap.h>
+ #include <linux/xattr.h>
+diff -NurpP --minimal linux-3.0.9/fs/stat.c linux-3.0.9-vs2.3.2.1/fs/stat.c
+--- linux-3.0.9/fs/stat.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/stat.c 2011-11-15 17:37:07.000000000 +0100
+@@ -26,6 +26,7 @@ void generic_fillattr(struct inode *inod
+ stat->nlink = inode->i_nlink;
+ stat->uid = inode->i_uid;
+ stat->gid = inode->i_gid;
++ stat->tag = inode->i_tag;
+ stat->rdev = inode->i_rdev;
+ stat->atime = inode->i_atime;
+ stat->mtime = inode->i_mtime;
+diff -NurpP --minimal linux-3.0.9/fs/statfs.c linux-3.0.9-vs2.3.2.1/fs/statfs.c
+--- linux-3.0.9/fs/statfs.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/statfs.c 2011-11-15 17:37:07.000000000 +0100
+@@ -7,6 +7,8 @@
+ #include <linux/statfs.h>
+ #include <linux/security.h>
+ #include <linux/uaccess.h>
++#include <linux/vs_base.h>
++#include <linux/vs_dlimit.h>
+
+ static int flags_by_mnt(int mnt_flags)
+ {
+@@ -59,6 +61,8 @@ int statfs_by_dentry(struct dentry *dent
+ retval = dentry->d_sb->s_op->statfs(dentry, buf);
+ if (retval == 0 && buf->f_frsize == 0)
+ buf->f_frsize = buf->f_bsize;
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ vx_vsi_statfs(dentry->d_sb, buf);
+ return retval;
+ }
+
+diff -NurpP --minimal linux-3.0.9/fs/super.c linux-3.0.9-vs2.3.2.1/fs/super.c
+--- linux-3.0.9/fs/super.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/super.c 2011-07-23 16:49:09.000000000 +0200
+@@ -32,6 +32,9 @@
+ #include <linux/backing-dev.h>
+ #include <linux/rculist_bl.h>
+ #include <linux/cleancache.h>
++#include <linux/devpts_fs.h>
++#include <linux/proc_fs.h>
++#include <linux/vs_context.h>
+ #include "internal.h"
+
+
+@@ -943,6 +946,13 @@ mount_fs(struct file_system_type *type,
+ WARN_ON(sb->s_bdi == &default_backing_dev_info);
+ sb->s_flags |= MS_BORN;
+
++ error = -EPERM;
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT) &&
++ !sb->s_bdev &&
++ (sb->s_magic != PROC_SUPER_MAGIC) &&
++ (sb->s_magic != DEVPTS_SUPER_MAGIC))
++ goto out_sb;
++
+ error = security_sb_kern_mount(sb, flags, secdata);
+ if (error)
+ goto out_sb;
+diff -NurpP --minimal linux-3.0.9/fs/sysfs/mount.c linux-3.0.9-vs2.3.2.1/fs/sysfs/mount.c
+--- linux-3.0.9/fs/sysfs/mount.c 2011-07-22 11:18:06.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/sysfs/mount.c 2011-06-22 12:39:15.000000000 +0200
+@@ -47,7 +47,7 @@ static int sysfs_fill_super(struct super
+
+ sb->s_blocksize = PAGE_CACHE_SIZE;
+ sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+- sb->s_magic = SYSFS_MAGIC;
++ sb->s_magic = SYSFS_SUPER_MAGIC;
+ sb->s_op = &sysfs_ops;
+ sb->s_time_gran = 1;
+
+diff -NurpP --minimal linux-3.0.9/fs/utimes.c linux-3.0.9-vs2.3.2.1/fs/utimes.c
+--- linux-3.0.9/fs/utimes.c 2011-05-22 16:17:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/utimes.c 2011-06-10 22:11:24.000000000 +0200
+@@ -8,6 +8,8 @@
+ #include <linux/stat.h>
+ #include <linux/utime.h>
+ #include <linux/syscalls.h>
++#include <linux/mount.h>
++#include <linux/vs_cowbl.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+
+@@ -52,12 +54,18 @@ static int utimes_common(struct path *pa
+ {
+ int error;
+ struct iattr newattrs;
+- struct inode *inode = path->dentry->d_inode;
++ struct inode *inode;
+
+ error = mnt_want_write(path->mnt);
+ if (error)
+ goto out;
+
++ error = cow_check_and_break(path);
++ if (error)
++ goto mnt_drop_write_and_out;
++
++ inode = path->dentry->d_inode;
++
+ if (times && times[0].tv_nsec == UTIME_NOW &&
+ times[1].tv_nsec == UTIME_NOW)
+ times = NULL;
+diff -NurpP --minimal linux-3.0.9/fs/xattr.c linux-3.0.9-vs2.3.2.1/fs/xattr.c
+--- linux-3.0.9/fs/xattr.c 2011-07-22 11:18:09.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xattr.c 2011-06-10 23:10:19.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <linux/module.h>
+ #include <linux/fsnotify.h>
+ #include <linux/audit.h>
++#include <linux/mount.h>
+ #include <asm/uaccess.h>
+
+
+@@ -49,7 +50,7 @@ xattr_permission(struct inode *inode, co
+ * The trusted.* namespace can only be accessed by privileged users.
+ */
+ if (!strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN)) {
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_capable(CAP_SYS_ADMIN, VXC_FS_TRUSTED))
+ return (mask & MAY_WRITE) ? -EPERM : -ENODATA;
+ return 0;
+ }
+diff -NurpP --minimal linux-3.0.9/fs/xfs/linux-2.6/xfs_ioctl.c linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_ioctl.c
+--- linux-3.0.9/fs/xfs/linux-2.6/xfs_ioctl.c 2011-05-22 16:17:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_ioctl.c 2011-06-10 22:11:24.000000000 +0200
+@@ -28,7 +28,7 @@
+ #include "xfs_bmap_btree.h"
+ #include "xfs_dinode.h"
+ #include "xfs_inode.h"
+-#include "xfs_ioctl.h"
++// #include "xfs_ioctl.h"
+ #include "xfs_rtalloc.h"
+ #include "xfs_itable.h"
+ #include "xfs_error.h"
+@@ -748,6 +748,10 @@ xfs_merge_ioc_xflags(
+ xflags |= XFS_XFLAG_IMMUTABLE;
+ else
+ xflags &= ~XFS_XFLAG_IMMUTABLE;
++ if (flags & FS_IXUNLINK_FL)
++ xflags |= XFS_XFLAG_IXUNLINK;
++ else
++ xflags &= ~XFS_XFLAG_IXUNLINK;
+ if (flags & FS_APPEND_FL)
+ xflags |= XFS_XFLAG_APPEND;
+ else
+@@ -776,6 +780,8 @@ xfs_di2lxflags(
+
+ if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ flags |= FS_IMMUTABLE_FL;
++ if (di_flags & XFS_DIFLAG_IXUNLINK)
++ flags |= FS_IXUNLINK_FL;
+ if (di_flags & XFS_DIFLAG_APPEND)
+ flags |= FS_APPEND_FL;
+ if (di_flags & XFS_DIFLAG_SYNC)
+@@ -836,6 +842,8 @@ xfs_set_diflags(
+ di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+ if (xflags & XFS_XFLAG_IMMUTABLE)
+ di_flags |= XFS_DIFLAG_IMMUTABLE;
++ if (xflags & XFS_XFLAG_IXUNLINK)
++ di_flags |= XFS_DIFLAG_IXUNLINK;
+ if (xflags & XFS_XFLAG_APPEND)
+ di_flags |= XFS_DIFLAG_APPEND;
+ if (xflags & XFS_XFLAG_SYNC)
+@@ -878,6 +886,10 @@ xfs_diflags_to_linux(
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (xflags & XFS_XFLAG_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
+ if (xflags & XFS_XFLAG_APPEND)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -1370,10 +1382,18 @@ xfs_file_ioctl(
+ case XFS_IOC_FSGETXATTRA:
+ return xfs_ioc_fsgetxattr(ip, 1, arg);
+ case XFS_IOC_FSSETXATTR:
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -XFS_ERROR(EACCES);
++ }
+ return xfs_ioc_fssetxattr(ip, filp, arg);
+ case XFS_IOC_GETXFLAGS:
+ return xfs_ioc_getxflags(ip, arg);
+ case XFS_IOC_SETXFLAGS:
++ if (IS_BARRIER(inode)) {
++ vxwprintk_task(1, "messing with the barrier.");
++ return -XFS_ERROR(EACCES);
++ }
+ return xfs_ioc_setxflags(ip, filp, arg);
+
+ case XFS_IOC_FSSETDM: {
+diff -NurpP --minimal linux-3.0.9/fs/xfs/linux-2.6/xfs_ioctl.h linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_ioctl.h
+--- linux-3.0.9/fs/xfs/linux-2.6/xfs_ioctl.h 2010-07-07 18:31:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_ioctl.h 2011-06-10 22:11:24.000000000 +0200
+@@ -70,6 +70,12 @@ xfs_handle_to_dentry(
+ void __user *uhandle,
+ u32 hlen);
+
++extern int
++xfs_sync_flags(
++ struct inode *inode,
++ int flags,
++ int vflags);
++
+ extern long
+ xfs_file_ioctl(
+ struct file *filp,
+diff -NurpP --minimal linux-3.0.9/fs/xfs/linux-2.6/xfs_iops.c linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_iops.c
+--- linux-3.0.9/fs/xfs/linux-2.6/xfs_iops.c 2011-07-22 11:18:09.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_iops.c 2011-06-22 12:39:15.000000000 +0200
+@@ -30,6 +30,7 @@
+ #include "xfs_bmap_btree.h"
+ #include "xfs_dinode.h"
+ #include "xfs_inode.h"
++#include "xfs_ioctl.h"
+ #include "xfs_bmap.h"
+ #include "xfs_rtalloc.h"
+ #include "xfs_error.h"
+@@ -48,6 +49,7 @@
+ #include <linux/security.h>
+ #include <linux/fiemap.h>
+ #include <linux/slab.h>
++#include <linux/vs_tag.h>
+
+ /*
+ * Bring the timestamps in the XFS inode uptodate.
+@@ -464,6 +466,7 @@ xfs_vn_getattr(
+ stat->nlink = ip->i_d.di_nlink;
+ stat->uid = ip->i_d.di_uid;
+ stat->gid = ip->i_d.di_gid;
++ stat->tag = ip->i_d.di_tag;
+ stat->ino = ip->i_ino;
+ stat->atime = inode->i_atime;
+ stat->mtime = inode->i_mtime;
+@@ -599,6 +602,7 @@ static const struct inode_operations xfs
+ .removexattr = generic_removexattr,
+ .listxattr = xfs_vn_listxattr,
+ .fiemap = xfs_vn_fiemap,
++ .sync_flags = xfs_sync_flags,
+ };
+
+ static const struct inode_operations xfs_dir_inode_operations = {
+@@ -624,6 +628,7 @@ static const struct inode_operations xfs
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
+ .listxattr = xfs_vn_listxattr,
++ .sync_flags = xfs_sync_flags,
+ };
+
+ static const struct inode_operations xfs_dir_ci_inode_operations = {
+@@ -673,6 +678,10 @@ xfs_diflags_to_iflags(
+ inode->i_flags |= S_IMMUTABLE;
+ else
+ inode->i_flags &= ~S_IMMUTABLE;
++ if (ip->i_d.di_flags & XFS_DIFLAG_IXUNLINK)
++ inode->i_flags |= S_IXUNLINK;
++ else
++ inode->i_flags &= ~S_IXUNLINK;
+ if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+ inode->i_flags |= S_APPEND;
+ else
+@@ -685,6 +694,15 @@ xfs_diflags_to_iflags(
+ inode->i_flags |= S_NOATIME;
+ else
+ inode->i_flags &= ~S_NOATIME;
++
++ if (ip->i_d.di_vflags & XFS_DIVFLAG_BARRIER)
++ inode->i_vflags |= V_BARRIER;
++ else
++ inode->i_vflags &= ~V_BARRIER;
++ if (ip->i_d.di_vflags & XFS_DIVFLAG_COW)
++ inode->i_vflags |= V_COW;
++ else
++ inode->i_vflags &= ~V_COW;
+ }
+
+ /*
+@@ -716,6 +734,7 @@ xfs_setup_inode(
+ inode->i_nlink = ip->i_d.di_nlink;
+ inode->i_uid = ip->i_d.di_uid;
+ inode->i_gid = ip->i_d.di_gid;
++ inode->i_tag = ip->i_d.di_tag;
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFBLK:
+diff -NurpP --minimal linux-3.0.9/fs/xfs/linux-2.6/xfs_linux.h linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_linux.h
+--- linux-3.0.9/fs/xfs/linux-2.6/xfs_linux.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_linux.h 2011-11-15 17:37:07.000000000 +0100
+@@ -117,6 +117,7 @@
+
+ #define current_cpu() (raw_smp_processor_id())
+ #define current_pid() (current->pid)
++#define current_fstag(vp) (dx_current_fstag((vp)->i_sb))
+ #define current_test_flags(f) (current->flags & (f))
+ #define current_set_flags_nested(sp, f) \
+ (*(sp) = current->flags, current->flags |= (f))
+diff -NurpP --minimal linux-3.0.9/fs/xfs/linux-2.6/xfs_super.c linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_super.c
+--- linux-3.0.9/fs/xfs/linux-2.6/xfs_super.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/linux-2.6/xfs_super.c 2011-11-15 17:37:07.000000000 +0100
+@@ -114,6 +114,9 @@ mempool_t *xfs_ioend_pool;
+ #define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed logging disabled */
+ #define MNTOPT_DISCARD "discard" /* Discard unused blocks */
+ #define MNTOPT_NODISCARD "nodiscard" /* Do not discard unused blocks */
++#define MNTOPT_TAGXID "tagxid" /* context tagging for inodes */
++#define MNTOPT_TAGGED "tag" /* context tagging for inodes */
++#define MNTOPT_NOTAGTAG "notag" /* do not use context tagging */
+
+ /*
+ * Table driven mount option parser.
+@@ -122,10 +125,14 @@ mempool_t *xfs_ioend_pool;
+ * in the future, too.
+ */
+ enum {
++ Opt_tag, Opt_notag,
+ Opt_barrier, Opt_nobarrier, Opt_err
+ };
+
+ static const match_table_t tokens = {
++ {Opt_tag, "tagxid"},
++ {Opt_tag, "tag"},
++ {Opt_notag, "notag"},
+ {Opt_barrier, "barrier"},
+ {Opt_nobarrier, "nobarrier"},
+ {Opt_err, NULL}
+@@ -373,6 +380,19 @@ xfs_parseargs(
+ } else if (!strcmp(this_char, "irixsgid")) {
+ xfs_warn(mp,
+ "irixsgid is now a sysctl(2) variable, option is deprecated.");
++#ifndef CONFIG_TAGGING_NONE
++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++ } else if (!strcmp(this_char, MNTOPT_NOTAGTAG)) {
++ mp->m_flags &= ~XFS_MOUNT_TAGGED;
++ } else if (!strcmp(this_char, MNTOPT_TAGXID)) {
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++#endif
++#ifdef CONFIG_PROPAGATE
++ } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
++ /* use value */
++ mp->m_flags |= XFS_MOUNT_TAGGED;
++#endif
+ } else {
+ xfs_warn(mp, "unknown mount option [%s].", this_char);
+ return EINVAL;
+@@ -1182,6 +1202,16 @@ xfs_fs_remount(
+ case Opt_nobarrier:
+ mp->m_flags &= ~XFS_MOUNT_BARRIER;
+ break;
++ case Opt_tag:
++ if (!(sb->s_flags & MS_TAGGED)) {
++ printk(KERN_INFO
++ "XFS: %s: tagging not permitted on remount.\n",
++ sb->s_id);
++ return -EINVAL;
++ }
++ break;
++ case Opt_notag:
++ break;
+ default:
+ /*
+ * Logically we would return an error here to prevent
+@@ -1397,6 +1427,9 @@ xfs_fs_fill_super(
+ if (error)
+ goto out_free_sb;
+
++ if (mp->m_flags & XFS_MOUNT_TAGGED)
++ sb->s_flags |= MS_TAGGED;
++
+ /*
+ * we must configure the block size in the superblock before we run the
+ * full mount process as the mount process can lookup and cache inodes.
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_dinode.h linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_dinode.h
+--- linux-3.0.9/fs/xfs/xfs_dinode.h 2011-01-05 21:50:28.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_dinode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -51,7 +51,9 @@ typedef struct xfs_dinode {
+ __be32 di_nlink; /* number of links to file */
+ __be16 di_projid_lo; /* lower part of owner's project id */
+ __be16 di_projid_hi; /* higher part owner's project id */
+- __u8 di_pad[6]; /* unused, zeroed space */
++ __u8 di_pad[2]; /* unused, zeroed space */
++ __be16 di_tag; /* context tagging */
++ __be16 di_vflags; /* vserver specific flags */
+ __be16 di_flushiter; /* incremented on flush */
+ xfs_timestamp_t di_atime; /* time last accessed */
+ xfs_timestamp_t di_mtime; /* time last modified */
+@@ -184,6 +186,8 @@ static inline void xfs_dinode_put_rdev(s
+ #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
+ #define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */
+ #define XFS_DIFLAG_FILESTREAM_BIT 14 /* use filestream allocator */
++#define XFS_DIFLAG_IXUNLINK_BIT 15 /* Immutable inver on unlink */
++
+ #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT)
+ #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT)
+ #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT)
+@@ -199,6 +203,7 @@ static inline void xfs_dinode_put_rdev(s
+ #define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
+ #define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
+ #define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)
++#define XFS_DIFLAG_IXUNLINK (1 << XFS_DIFLAG_IXUNLINK_BIT)
+
+ #ifdef CONFIG_XFS_RT
+ #define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+@@ -211,6 +216,10 @@ static inline void xfs_dinode_put_rdev(s
+ XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
+ XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
+ XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
+- XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM)
++ XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM | \
++ XFS_DIFLAG_IXUNLINK)
++
++#define XFS_DIVFLAG_BARRIER 0x01
++#define XFS_DIVFLAG_COW 0x02
+
+ #endif /* __XFS_DINODE_H__ */
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_fs.h linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_fs.h
+--- linux-3.0.9/fs/xfs/xfs_fs.h 2011-01-05 21:50:28.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_fs.h 2011-06-10 22:11:24.000000000 +0200
+@@ -67,6 +67,9 @@ struct fsxattr {
+ #define XFS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
+ #define XFS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
+ #define XFS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
++#define XFS_XFLAG_IXUNLINK 0x00008000 /* immutable invert on unlink */
++#define XFS_XFLAG_BARRIER 0x10000000 /* chroot() barrier */
++#define XFS_XFLAG_COW 0x20000000 /* copy on write mark */
+ #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
+
+ /*
+@@ -297,7 +300,8 @@ typedef struct xfs_bstat {
+ #define bs_projid bs_projid_lo /* (previously just bs_projid) */
+ __u16 bs_forkoff; /* inode fork offset in bytes */
+ __u16 bs_projid_hi; /* higher part of project id */
+- unsigned char bs_pad[10]; /* pad space, unused */
++ unsigned char bs_pad[8]; /* pad space, unused */
++ __u16 bs_tag; /* context tagging */
+ __u32 bs_dmevmask; /* DMIG event mask */
+ __u16 bs_dmstate; /* DMIG state info */
+ __u16 bs_aextents; /* attribute number of extents */
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_ialloc.c linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_ialloc.c
+--- linux-3.0.9/fs/xfs/xfs_ialloc.c 2011-05-22 16:17:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_ialloc.c 2011-06-10 22:11:24.000000000 +0200
+@@ -37,7 +37,6 @@
+ #include "xfs_error.h"
+ #include "xfs_bmap.h"
+
+-
+ /*
+ * Allocation group level functions.
+ */
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_inode.c linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_inode.c
+--- linux-3.0.9/fs/xfs/xfs_inode.c 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_inode.c 2011-06-10 22:11:24.000000000 +0200
+@@ -243,6 +243,7 @@ xfs_inotobp(
+ return 0;
+ }
+
++#include <linux/vs_tag.h>
+
+ /*
+ * This routine is called to map an inode to the buffer containing
+@@ -641,15 +642,25 @@ xfs_iformat_btree(
+ STATIC void
+ xfs_dinode_from_disk(
+ xfs_icdinode_t *to,
+- xfs_dinode_t *from)
++ xfs_dinode_t *from,
++ int tagged)
+ {
++ uint32_t uid, gid, tag;
++
+ to->di_magic = be16_to_cpu(from->di_magic);
+ to->di_mode = be16_to_cpu(from->di_mode);
+ to->di_version = from ->di_version;
+ to->di_format = from->di_format;
+ to->di_onlink = be16_to_cpu(from->di_onlink);
+- to->di_uid = be32_to_cpu(from->di_uid);
+- to->di_gid = be32_to_cpu(from->di_gid);
++
++ uid = be32_to_cpu(from->di_uid);
++ gid = be32_to_cpu(from->di_gid);
++ tag = be16_to_cpu(from->di_tag);
++
++ to->di_uid = INOTAG_UID(tagged, uid, gid);
++ to->di_gid = INOTAG_GID(tagged, uid, gid);
++ to->di_tag = INOTAG_TAG(tagged, uid, gid, tag);
++
+ to->di_nlink = be32_to_cpu(from->di_nlink);
+ to->di_projid_lo = be16_to_cpu(from->di_projid_lo);
+ to->di_projid_hi = be16_to_cpu(from->di_projid_hi);
+@@ -671,21 +682,26 @@ xfs_dinode_from_disk(
+ to->di_dmevmask = be32_to_cpu(from->di_dmevmask);
+ to->di_dmstate = be16_to_cpu(from->di_dmstate);
+ to->di_flags = be16_to_cpu(from->di_flags);
++ to->di_vflags = be16_to_cpu(from->di_vflags);
+ to->di_gen = be32_to_cpu(from->di_gen);
+ }
+
+ void
+ xfs_dinode_to_disk(
+ xfs_dinode_t *to,
+- xfs_icdinode_t *from)
++ xfs_icdinode_t *from,
++ int tagged)
+ {
+ to->di_magic = cpu_to_be16(from->di_magic);
+ to->di_mode = cpu_to_be16(from->di_mode);
+ to->di_version = from ->di_version;
+ to->di_format = from->di_format;
+ to->di_onlink = cpu_to_be16(from->di_onlink);
+- to->di_uid = cpu_to_be32(from->di_uid);
+- to->di_gid = cpu_to_be32(from->di_gid);
++
++ to->di_uid = cpu_to_be32(TAGINO_UID(tagged, from->di_uid, from->di_tag));
++ to->di_gid = cpu_to_be32(TAGINO_GID(tagged, from->di_gid, from->di_tag));
++ to->di_tag = cpu_to_be16(TAGINO_TAG(tagged, from->di_tag));
++
+ to->di_nlink = cpu_to_be32(from->di_nlink);
+ to->di_projid_lo = cpu_to_be16(from->di_projid_lo);
+ to->di_projid_hi = cpu_to_be16(from->di_projid_hi);
+@@ -707,12 +723,14 @@ xfs_dinode_to_disk(
+ to->di_dmevmask = cpu_to_be32(from->di_dmevmask);
+ to->di_dmstate = cpu_to_be16(from->di_dmstate);
+ to->di_flags = cpu_to_be16(from->di_flags);
++ to->di_vflags = cpu_to_be16(from->di_vflags);
+ to->di_gen = cpu_to_be32(from->di_gen);
+ }
+
+ STATIC uint
+ _xfs_dic2xflags(
+- __uint16_t di_flags)
++ __uint16_t di_flags,
++ __uint16_t di_vflags)
+ {
+ uint flags = 0;
+
+@@ -723,6 +741,8 @@ _xfs_dic2xflags(
+ flags |= XFS_XFLAG_PREALLOC;
+ if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ flags |= XFS_XFLAG_IMMUTABLE;
++ if (di_flags & XFS_DIFLAG_IXUNLINK)
++ flags |= XFS_XFLAG_IXUNLINK;
+ if (di_flags & XFS_DIFLAG_APPEND)
+ flags |= XFS_XFLAG_APPEND;
+ if (di_flags & XFS_DIFLAG_SYNC)
+@@ -747,6 +767,10 @@ _xfs_dic2xflags(
+ flags |= XFS_XFLAG_FILESTREAM;
+ }
+
++ if (di_vflags & XFS_DIVFLAG_BARRIER)
++ flags |= FS_BARRIER_FL;
++ if (di_vflags & XFS_DIVFLAG_COW)
++ flags |= FS_COW_FL;
+ return flags;
+ }
+
+@@ -756,7 +780,7 @@ xfs_ip2xflags(
+ {
+ xfs_icdinode_t *dic = &ip->i_d;
+
+- return _xfs_dic2xflags(dic->di_flags) |
++ return _xfs_dic2xflags(dic->di_flags, dic->di_vflags) |
+ (XFS_IFORK_Q(ip) ? XFS_XFLAG_HASATTR : 0);
+ }
+
+@@ -764,7 +788,8 @@ uint
+ xfs_dic2xflags(
+ xfs_dinode_t *dip)
+ {
+- return _xfs_dic2xflags(be16_to_cpu(dip->di_flags)) |
++ return _xfs_dic2xflags(be16_to_cpu(dip->di_flags),
++ be16_to_cpu(dip->di_vflags)) |
+ (XFS_DFORK_Q(dip) ? XFS_XFLAG_HASATTR : 0);
+ }
+
+@@ -797,7 +822,6 @@ xfs_iread(
+ if (error)
+ return error;
+ dip = (xfs_dinode_t *)xfs_buf_offset(bp, ip->i_imap.im_boffset);
+-
+ /*
+ * If we got something that isn't an inode it means someone
+ * (nfs or dmi) has a stale handle.
+@@ -820,7 +844,8 @@ xfs_iread(
+ * Otherwise, just get the truly permanent information.
+ */
+ if (dip->di_mode) {
+- xfs_dinode_from_disk(&ip->i_d, dip);
++ xfs_dinode_from_disk(&ip->i_d, dip,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+ error = xfs_iformat(ip, dip);
+ if (error) {
+ #ifdef DEBUG
+@@ -1015,6 +1040,7 @@ xfs_ialloc(
+ ASSERT(ip->i_d.di_nlink == nlink);
+ ip->i_d.di_uid = current_fsuid();
+ ip->i_d.di_gid = current_fsgid();
++ ip->i_d.di_tag = current_fstag(&ip->i_vnode);
+ xfs_set_projid(ip, prid);
+ memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+
+@@ -1075,6 +1101,7 @@ xfs_ialloc(
+ ip->i_d.di_dmevmask = 0;
+ ip->i_d.di_dmstate = 0;
+ ip->i_d.di_flags = 0;
++ ip->i_d.di_vflags = 0;
+ flags = XFS_ILOG_CORE;
+ switch (mode & S_IFMT) {
+ case S_IFIFO:
+@@ -2108,6 +2135,7 @@ xfs_ifree(
+ }
+ ip->i_d.di_mode = 0; /* mark incore inode as free */
+ ip->i_d.di_flags = 0;
++ ip->i_d.di_vflags = 0;
+ ip->i_d.di_dmevmask = 0;
+ ip->i_d.di_forkoff = 0; /* mark the attr fork not in use */
+ ip->i_df.if_ext_max =
+@@ -2987,7 +3015,8 @@ xfs_iflush_int(
+ * because if the inode is dirty at all the core must
+ * be.
+ */
+- xfs_dinode_to_disk(dip, &ip->i_d);
++ xfs_dinode_to_disk(dip, &ip->i_d,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+
+ /* Wrap, we never let the log put out DI_MAX_FLUSH */
+ if (ip->i_d.di_flushiter == DI_MAX_FLUSH)
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_inode.h linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_inode.h
+--- linux-3.0.9/fs/xfs/xfs_inode.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_inode.h 2011-07-01 11:35:35.000000000 +0200
+@@ -135,7 +135,9 @@ typedef struct xfs_icdinode {
+ __uint32_t di_nlink; /* number of links to file */
+ __uint16_t di_projid_lo; /* lower part of owner's project id */
+ __uint16_t di_projid_hi; /* higher part of owner's project id */
+- __uint8_t di_pad[6]; /* unused, zeroed space */
++ __uint8_t di_pad[2]; /* unused, zeroed space */
++ __uint16_t di_tag; /* context tagging */
++ __uint16_t di_vflags; /* vserver specific flags */
+ __uint16_t di_flushiter; /* incremented on flush */
+ xfs_ictimestamp_t di_atime; /* time last accessed */
+ xfs_ictimestamp_t di_mtime; /* time last modified */
+@@ -546,7 +548,7 @@ int xfs_itobp(struct xfs_mount *, struc
+ int xfs_iread(struct xfs_mount *, struct xfs_trans *,
+ struct xfs_inode *, uint);
+ void xfs_dinode_to_disk(struct xfs_dinode *,
+- struct xfs_icdinode *);
++ struct xfs_icdinode *, int);
+ void xfs_idestroy_fork(struct xfs_inode *, int);
+ void xfs_idata_realloc(struct xfs_inode *, int, int);
+ void xfs_iroot_realloc(struct xfs_inode *, int, int);
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_itable.c linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_itable.c
+--- linux-3.0.9/fs/xfs/xfs_itable.c 2011-05-22 16:17:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_itable.c 2011-06-10 22:11:24.000000000 +0200
+@@ -98,6 +98,7 @@ xfs_bulkstat_one_int(
+ buf->bs_mode = dic->di_mode;
+ buf->bs_uid = dic->di_uid;
+ buf->bs_gid = dic->di_gid;
++ buf->bs_tag = dic->di_tag;
+ buf->bs_size = dic->di_size;
+
+ /*
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_log_recover.c linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_log_recover.c
+--- linux-3.0.9/fs/xfs/xfs_log_recover.c 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_log_recover.c 2011-06-10 22:11:24.000000000 +0200
+@@ -2343,7 +2343,8 @@ xlog_recover_inode_pass2(
+ }
+
+ /* The core is in in-core format */
+- xfs_dinode_to_disk(dip, item->ri_buf[1].i_addr);
++ xfs_dinode_to_disk(dip, item->ri_buf[1].i_addr,
++ mp->m_flags & XFS_MOUNT_TAGGED);
+
+ /* the rest is in on-disk format */
+ if (item->ri_buf[1].i_len > sizeof(struct xfs_icdinode)) {
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_mount.h linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_mount.h
+--- linux-3.0.9/fs/xfs/xfs_mount.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_mount.h 2011-06-10 22:11:24.000000000 +0200
+@@ -249,6 +249,7 @@ typedef struct xfs_mount {
+ allocator */
+ #define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */
+
++#define XFS_MOUNT_TAGGED (1ULL << 31) /* context tagging */
+
+ /*
+ * Default minimum read and write sizes.
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_vnodeops.c linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_vnodeops.c
+--- linux-3.0.9/fs/xfs/xfs_vnodeops.c 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_vnodeops.c 2011-07-01 11:35:35.000000000 +0200
+@@ -50,6 +50,78 @@
+ #include "xfs_vnodeops.h"
+ #include "xfs_trace.h"
+
++
++STATIC void
++xfs_get_inode_flags(
++ xfs_inode_t *ip)
++{
++ struct inode *inode = VFS_I(ip);
++ unsigned int flags = inode->i_flags;
++ unsigned int vflags = inode->i_vflags;
++
++ if (flags & S_IMMUTABLE)
++ ip->i_d.di_flags |= XFS_DIFLAG_IMMUTABLE;
++ else
++ ip->i_d.di_flags &= ~XFS_DIFLAG_IMMUTABLE;
++ if (flags & S_IXUNLINK)
++ ip->i_d.di_flags |= XFS_DIFLAG_IXUNLINK;
++ else
++ ip->i_d.di_flags &= ~XFS_DIFLAG_IXUNLINK;
++
++ if (vflags & V_BARRIER)
++ ip->i_d.di_vflags |= XFS_DIVFLAG_BARRIER;
++ else
++ ip->i_d.di_vflags &= ~XFS_DIVFLAG_BARRIER;
++ if (vflags & V_COW)
++ ip->i_d.di_vflags |= XFS_DIVFLAG_COW;
++ else
++ ip->i_d.di_vflags &= ~XFS_DIVFLAG_COW;
++}
++
++int
++xfs_sync_flags(
++ struct inode *inode,
++ int flags,
++ int vflags)
++{
++ struct xfs_inode *ip = XFS_I(inode);
++ struct xfs_mount *mp = ip->i_mount;
++ struct xfs_trans *tp;
++ unsigned int lock_flags = 0;
++ int code;
++
++ tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE);
++ code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0);
++ if (code)
++ goto error_out;
++
++ xfs_ilock(ip, XFS_ILOCK_EXCL);
++
++ xfs_trans_ijoin(tp, ip);
++
++ inode->i_flags = flags;
++ inode->i_vflags = vflags;
++ xfs_get_inode_flags(ip);
++
++ xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
++ xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
++
++ XFS_STATS_INC(xs_ig_attrchg);
++
++ if (mp->m_flags & XFS_MOUNT_WSYNC)
++ xfs_trans_set_sync(tp);
++ code = xfs_trans_commit(tp, 0);
++ xfs_iunlock(ip, XFS_ILOCK_EXCL);
++ return code;
++
++error_out:
++ xfs_trans_cancel(tp, 0);
++ if (lock_flags)
++ xfs_iunlock(ip, XFS_ILOCK_EXCL);
++ return code;
++}
++
++
+ int
+ xfs_setattr(
+ struct xfs_inode *ip,
+@@ -65,6 +137,7 @@ xfs_setattr(
+ uint commit_flags=0;
+ uid_t uid=0, iuid=0;
+ gid_t gid=0, igid=0;
++ tag_t tag=0, itag=0;
+ struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2;
+ int need_iolock = 1;
+
+@@ -147,7 +220,7 @@ xfs_setattr(
+ /*
+ * Change file ownership. Must be the owner or privileged.
+ */
+- if (mask & (ATTR_UID|ATTR_GID)) {
++ if (mask & (ATTR_UID|ATTR_GID|ATTR_TAG)) {
+ /*
+ * These IDs could have changed since we last looked at them.
+ * But, we're assured that if the ownership did change
+@@ -156,8 +229,10 @@ xfs_setattr(
+ */
+ iuid = ip->i_d.di_uid;
+ igid = ip->i_d.di_gid;
++ itag = ip->i_d.di_tag;
+ gid = (mask & ATTR_GID) ? iattr->ia_gid : igid;
+ uid = (mask & ATTR_UID) ? iattr->ia_uid : iuid;
++ tag = (mask & ATTR_TAG) ? iattr->ia_tag : itag;
+
+ /*
+ * Do a quota reservation only if uid/gid is actually
+@@ -165,7 +240,8 @@ xfs_setattr(
+ */
+ if (XFS_IS_QUOTA_RUNNING(mp) &&
+ ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
+- (XFS_IS_GQUOTA_ON(mp) && igid != gid))) {
++ (XFS_IS_GQUOTA_ON(mp) && igid != gid) ||
++ (XFS_IS_GQUOTA_ON(mp) && itag != tag))) {
+ ASSERT(tp);
+ code = xfs_qm_vop_chown_reserve(tp, ip, udqp, gdqp,
+ capable(CAP_FOWNER) ?
+@@ -329,7 +405,7 @@ xfs_setattr(
+ /*
+ * Change file ownership. Must be the owner or privileged.
+ */
+- if (mask & (ATTR_UID|ATTR_GID)) {
++ if (mask & (ATTR_UID|ATTR_GID|ATTR_TAG)) {
+ /*
+ * CAP_FSETID overrides the following restrictions:
+ *
+@@ -345,6 +421,10 @@ xfs_setattr(
+ * Change the ownerships and register quota modifications
+ * in the transaction.
+ */
++ if (itag != tag) {
++ ip->i_d.di_tag = tag;
++ inode->i_tag = tag;
++ }
+ if (iuid != uid) {
+ if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_UQUOTA_ON(mp)) {
+ ASSERT(mask & ATTR_UID);
+diff -NurpP --minimal linux-3.0.9/fs/xfs/xfs_vnodeops.h linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_vnodeops.h
+--- linux-3.0.9/fs/xfs/xfs_vnodeops.h 2011-05-22 16:17:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/fs/xfs/xfs_vnodeops.h 2011-06-10 22:11:24.000000000 +0200
+@@ -13,6 +13,7 @@ struct xfs_inode;
+ struct xfs_iomap;
+
+
++int xfs_sync_xflags(struct xfs_inode *ip);
+ int xfs_setattr(struct xfs_inode *ip, struct iattr *vap, int flags);
+ #define XFS_ATTR_DMI 0x01 /* invocation from a DMI function */
+ #define XFS_ATTR_NONBLOCK 0x02 /* return EAGAIN if operation would block */
+diff -NurpP --minimal linux-3.0.9/include/asm-generic/tlb.h linux-3.0.9-vs2.3.2.1/include/asm-generic/tlb.h
+--- linux-3.0.9/include/asm-generic/tlb.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/asm-generic/tlb.h 2011-06-10 22:11:24.000000000 +0200
+@@ -16,6 +16,7 @@
+ #define _ASM_GENERIC__TLB_H
+
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+
+diff -NurpP --minimal linux-3.0.9/include/linux/Kbuild linux-3.0.9-vs2.3.2.1/include/linux/Kbuild
+--- linux-3.0.9/include/linux/Kbuild 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/Kbuild 2011-06-10 22:11:24.000000000 +0200
+@@ -17,6 +17,7 @@ header-y += netfilter_bridge/
+ header-y += netfilter_ipv4/
+ header-y += netfilter_ipv6/
+ header-y += usb/
++header-y += vserver/
+ header-y += wimax/
+
+ objhdr-y += version.h
+diff -NurpP --minimal linux-3.0.9/include/linux/capability.h linux-3.0.9-vs2.3.2.1/include/linux/capability.h
+--- linux-3.0.9/include/linux/capability.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/capability.h 2011-06-10 22:11:24.000000000 +0200
+@@ -279,6 +279,7 @@ struct cpu_vfs_cap_data {
+ arbitrary SCSI commands */
+ /* Allow setting encryption key on loopback filesystem */
+ /* Allow setting zone reclaim policy */
++/* Allow the selection of a security context */
+
+ #define CAP_SYS_ADMIN 21
+
+@@ -362,7 +363,12 @@ struct cpu_vfs_cap_data {
+
+ #define CAP_LAST_CAP CAP_WAKE_ALARM
+
+-#define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
++/* Allow context manipulations */
++/* Allow changing context info on files */
++
++#define CAP_CONTEXT 63
++
++#define cap_valid(x) ((x) >= 0 && ((x) <= CAP_LAST_CAP || (x) == CAP_CONTEXT))
+
+ /*
+ * Bit location of each capability (used by user-space library and kernel)
+diff -NurpP --minimal linux-3.0.9/include/linux/cred.h linux-3.0.9-vs2.3.2.1/include/linux/cred.h
+--- linux-3.0.9/include/linux/cred.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/cred.h 2011-06-10 22:11:24.000000000 +0200
+@@ -156,6 +156,7 @@ extern void exit_creds(struct task_struc
+ extern int copy_creds(struct task_struct *, unsigned long);
+ extern const struct cred *get_task_cred(struct task_struct *);
+ extern struct cred *cred_alloc_blank(void);
++extern struct cred *__prepare_creds(const struct cred *);
+ extern struct cred *prepare_creds(void);
+ extern struct cred *prepare_exec_creds(void);
+ extern int commit_creds(struct cred *);
+@@ -209,6 +210,31 @@ static inline void validate_process_cred
+ }
+ #endif
+
++static inline void set_cred_subscribers(struct cred *cred, int n)
++{
++#ifdef CONFIG_DEBUG_CREDENTIALS
++ atomic_set(&cred->subscribers, n);
++#endif
++}
++
++static inline int read_cred_subscribers(const struct cred *cred)
++{
++#ifdef CONFIG_DEBUG_CREDENTIALS
++ return atomic_read(&cred->subscribers);
++#else
++ return 0;
++#endif
++}
++
++static inline void alter_cred_subscribers(const struct cred *_cred, int n)
++{
++#ifdef CONFIG_DEBUG_CREDENTIALS
++ struct cred *cred = (struct cred *) _cred;
++
++ atomic_add(n, &cred->subscribers);
++#endif
++}
++
+ /**
+ * get_new_cred - Get a reference on a new set of credentials
+ * @cred: The new credentials to reference
+diff -NurpP --minimal linux-3.0.9/include/linux/devpts_fs.h linux-3.0.9-vs2.3.2.1/include/linux/devpts_fs.h
+--- linux-3.0.9/include/linux/devpts_fs.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/devpts_fs.h 2011-06-10 22:11:24.000000000 +0200
+@@ -45,5 +45,4 @@ static inline void devpts_pty_kill(struc
+
+ #endif
+
+-
+ #endif /* _LINUX_DEVPTS_FS_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/ext2_fs.h linux-3.0.9-vs2.3.2.1/include/linux/ext2_fs.h
+--- linux-3.0.9/include/linux/ext2_fs.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/ext2_fs.h 2011-11-15 17:37:07.000000000 +0100
+@@ -189,8 +189,12 @@ struct ext2_group_desc
+ #define EXT2_NOTAIL_FL FS_NOTAIL_FL /* file tail should not be merged */
+ #define EXT2_DIRSYNC_FL FS_DIRSYNC_FL /* dirsync behaviour (directories only) */
+ #define EXT2_TOPDIR_FL FS_TOPDIR_FL /* Top of directory hierarchies*/
++#define EXT2_IXUNLINK_FL FS_IXUNLINK_FL /* Immutable invert on unlink */
+ #define EXT2_RESERVED_FL FS_RESERVED_FL /* reserved for ext2 lib */
+
++#define EXT2_BARRIER_FL FS_BARRIER_FL /* Barrier for chroot() */
++#define EXT2_COW_FL FS_COW_FL /* Copy on Write marker */
++
+ #define EXT2_FL_USER_VISIBLE FS_FL_USER_VISIBLE /* User visible flags */
+ #define EXT2_FL_USER_MODIFIABLE FS_FL_USER_MODIFIABLE /* User modifiable flags */
+
+@@ -274,7 +278,8 @@ struct ext2_inode {
+ __u16 i_pad1;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __u8 h_i_frag; /* Fragment number */
+@@ -303,6 +308,7 @@ struct ext2_inode {
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+ #endif
+
+@@ -347,6 +353,7 @@ struct ext2_inode {
+ #define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */
+ #define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */
+ #define EXT2_MOUNT_RESERVATION 0x080000 /* Preallocation */
++#define EXT2_MOUNT_TAGGED (1<<24) /* Enable Context Tags */
+
+
+ #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt
+diff -NurpP --minimal linux-3.0.9/include/linux/ext3_fs.h linux-3.0.9-vs2.3.2.1/include/linux/ext3_fs.h
+--- linux-3.0.9/include/linux/ext3_fs.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/ext3_fs.h 2011-11-15 17:37:07.000000000 +0100
+@@ -173,10 +173,14 @@ struct ext3_group_desc
+ #define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */
+ #define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
+ #define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
++#define EXT3_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
+
+-#define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
+-#define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
++#define EXT3_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define EXT3_COW_FL 0x20000000 /* Copy on Write marker */
++
++#define EXT3_FL_USER_VISIBLE 0x0103DFFF /* User visible flags */
++#define EXT3_FL_USER_MODIFIABLE 0x010380FF /* User modifiable flags */
+
+ /* Flags that should be inherited by new inodes from their parent. */
+ #define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
+@@ -312,7 +316,8 @@ struct ext3_inode {
+ __u16 i_pad1;
+ __le16 l_i_uid_high; /* these 2 fields */
+ __le16 l_i_gid_high; /* were reserved2[0] */
+- __u32 l_i_reserved2;
++ __le16 l_i_tag; /* Context Tag */
++ __u16 l_i_reserved2;
+ } linux2;
+ struct {
+ __u8 h_i_frag; /* Fragment number */
+@@ -343,6 +348,7 @@ struct ext3_inode {
+ #define i_gid_low i_gid
+ #define i_uid_high osd2.linux2.l_i_uid_high
+ #define i_gid_high osd2.linux2.l_i_gid_high
++#define i_raw_tag osd2.linux2.l_i_tag
+ #define i_reserved2 osd2.linux2.l_i_reserved2
+
+ #elif defined(__GNU__)
+@@ -405,6 +411,7 @@ struct ext3_inode {
+ #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
+ #define EXT3_MOUNT_DATA_ERR_ABORT 0x400000 /* Abort on file data write
+ * error in ordered mode */
++#define EXT3_MOUNT_TAGGED (1<<24) /* Enable Context Tags */
+
+ /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
+ #ifndef _LINUX_EXT2_FS_H
+@@ -919,6 +926,7 @@ extern void ext3_get_inode_flags(struct
+ extern void ext3_set_aops(struct inode *inode);
+ extern int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ u64 start, u64 len);
++extern int ext3_sync_flags(struct inode *, int, int);
+
+ /* ioctl.c */
+ extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
+diff -NurpP --minimal linux-3.0.9/include/linux/fs.h linux-3.0.9-vs2.3.2.1/include/linux/fs.h
+--- linux-3.0.9/include/linux/fs.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/fs.h 2011-07-01 11:35:35.000000000 +0200
+@@ -208,6 +208,9 @@ struct inodes_stat_t {
+ #define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
+ #define MS_I_VERSION (1<<23) /* Update inode I_version field */
+ #define MS_STRICTATIME (1<<24) /* Always perform atime updates */
++#define MS_TAGGED (1<<25) /* use generic inode tagging */
++#define MS_TAGID (1<<26) /* use specific tag for this mount */
++#define MS_NOTAGCHECK (1<<27) /* don't check tags */
+ #define MS_NOSEC (1<<28)
+ #define MS_BORN (1<<29)
+ #define MS_ACTIVE (1<<30)
+@@ -239,6 +242,14 @@ struct inodes_stat_t {
+ #define S_IMA 1024 /* Inode has an associated IMA struct */
+ #define S_AUTOMOUNT 2048 /* Automount/referral quasi-directory */
+ #define S_NOSEC 4096 /* no suid or xattr security attributes */
++#define S_IXUNLINK 8192 /* Immutable Invert on unlink */
++
++/* Linux-VServer related Inode flags */
++
++#define V_VALID 1
++#define V_XATTR 2
++#define V_BARRIER 4 /* Barrier for chroot() */
++#define V_COW 8 /* Copy on Write */
+
+ /*
+ * Note that nosuid etc flags are inode-specific: setting some file-system
+@@ -261,12 +272,15 @@ struct inodes_stat_t {
+ #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
+ ((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
+ #define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK)
+-#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
+-#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
++#define IS_NOATIME(inode) __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
++#define IS_I_VERSION(inode) __IS_FLG(inode, MS_I_VERSION)
++#define IS_TAGGED(inode) __IS_FLG(inode, MS_TAGGED)
+
+ #define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA)
+ #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND)
+ #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE)
++#define IS_IXUNLINK(inode) ((inode)->i_flags & S_IXUNLINK)
++#define IS_IXORUNLINK(inode) ((IS_IXUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode))
+ #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL)
+
+ #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD)
+@@ -277,6 +291,16 @@ struct inodes_stat_t {
+ #define IS_AUTOMOUNT(inode) ((inode)->i_flags & S_AUTOMOUNT)
+ #define IS_NOSEC(inode) ((inode)->i_flags & S_NOSEC)
+
++#define IS_BARRIER(inode) (S_ISDIR((inode)->i_mode) && ((inode)->i_vflags & V_BARRIER))
++
++#ifdef CONFIG_VSERVER_COWBL
++# define IS_COW(inode) (IS_IXUNLINK(inode) && IS_IMMUTABLE(inode))
++# define IS_COW_LINK(inode) (S_ISREG((inode)->i_mode) && ((inode)->i_nlink > 1))
++#else
++# define IS_COW(inode) (0)
++# define IS_COW_LINK(inode) (0)
++#endif
++
+ /* the read-only stuff doesn't really belong here, but any other place is
+ probably as bad and I don't want to create yet another include file. */
+
+@@ -362,11 +386,14 @@ struct inodes_stat_t {
+ #define FS_EXTENT_FL 0x00080000 /* Extents */
+ #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */
+ #define FS_NOCOW_FL 0x00800000 /* Do not cow file */
++#define FS_IXUNLINK_FL 0x08000000 /* Immutable invert on unlink */
+ #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
+
+-#define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
+-#define FS_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
+-
++#define FS_BARRIER_FL 0x04000000 /* Barrier for chroot() */
++#define FS_COW_FL 0x20000000 /* Copy on Write marker */
++
++#define FS_FL_USER_VISIBLE 0x0103DFFF /* User visible flags */
++#define FS_FL_USER_MODIFIABLE 0x010380FF /* User modifiable flags */
+
+ #define SYNC_FILE_RANGE_WAIT_BEFORE 1
+ #define SYNC_FILE_RANGE_WRITE 2
+@@ -447,6 +474,7 @@ typedef void (dio_iodone_t)(struct kiocb
+ #define ATTR_KILL_PRIV (1 << 14)
+ #define ATTR_OPEN (1 << 15) /* Truncating from open(O_TRUNC) */
+ #define ATTR_TIMES_SET (1 << 16)
++#define ATTR_TAG (1 << 17)
+
+ /*
+ * This is the Inode Attributes structure, used for notify_change(). It
+@@ -462,6 +490,7 @@ struct iattr {
+ umode_t ia_mode;
+ uid_t ia_uid;
+ gid_t ia_gid;
++ tag_t ia_tag;
+ loff_t ia_size;
+ struct timespec ia_atime;
+ struct timespec ia_mtime;
+@@ -475,6 +504,9 @@ struct iattr {
+ struct file *ia_file;
+ };
+
++#define ATTR_FLAG_BARRIER 512 /* Barrier for chroot() */
++#define ATTR_FLAG_IXUNLINK 1024 /* Immutable invert on unlink */
++
+ /*
+ * Includes for diskquotas.
+ */
+@@ -740,11 +772,13 @@ struct inode {
+ umode_t i_mode;
+ uid_t i_uid;
+ gid_t i_gid;
++ tag_t i_tag;
+ const struct inode_operations *i_op;
+ struct super_block *i_sb;
+
+ spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */
+- unsigned int i_flags;
++ unsigned short i_flags;
++ unsigned short i_vflags;
+ unsigned long i_state;
+ #ifdef CONFIG_SECURITY
+ void *i_security;
+@@ -766,6 +800,7 @@ struct inode {
+ atomic_t i_count;
+ unsigned int i_nlink;
+ dev_t i_rdev;
++ dev_t i_mdev;
+ unsigned int i_blkbits;
+ u64 i_version;
+ loff_t i_size;
+@@ -890,12 +925,12 @@ static inline void i_size_write(struct i
+
+ static inline unsigned iminor(const struct inode *inode)
+ {
+- return MINOR(inode->i_rdev);
++ return MINOR(inode->i_mdev);
+ }
+
+ static inline unsigned imajor(const struct inode *inode)
+ {
+- return MAJOR(inode->i_rdev);
++ return MAJOR(inode->i_mdev);
+ }
+
+ extern struct block_device *I_BDEV(struct inode *inode);
+@@ -957,6 +992,7 @@ struct file {
+ loff_t f_pos;
+ struct fown_struct f_owner;
+ const struct cred *f_cred;
++ xid_t f_xid;
+ struct file_ra_state f_ra;
+
+ u64 f_version;
+@@ -1101,6 +1137,7 @@ struct file_lock {
+ struct file *fl_file;
+ loff_t fl_start;
+ loff_t fl_end;
++ xid_t fl_xid;
+
+ struct fasync_struct * fl_fasync; /* for lease break notifications */
+ unsigned long fl_break_time; /* for nonblocking lease breaks */
+@@ -1600,6 +1637,7 @@ struct inode_operations {
+ ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
+ ssize_t (*listxattr) (struct dentry *, char *, size_t);
+ int (*removexattr) (struct dentry *, const char *);
++ int (*sync_flags) (struct inode *, int, int);
+ void (*truncate_range)(struct inode *, loff_t, loff_t);
+ int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
+ u64 len);
+@@ -1618,6 +1656,7 @@ extern ssize_t vfs_readv(struct file *,
+ unsigned long, loff_t *);
+ extern ssize_t vfs_writev(struct file *, const struct iovec __user *,
+ unsigned long, loff_t *);
++ssize_t vfs_sendfile(struct file *, struct file *, loff_t *, size_t, loff_t);
+
+ struct super_operations {
+ struct inode *(*alloc_inode)(struct super_block *sb);
+@@ -2437,6 +2476,7 @@ extern int dcache_dir_open(struct inode
+ extern int dcache_dir_close(struct inode *, struct file *);
+ extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
+ extern int dcache_readdir(struct file *, void *, filldir_t);
++extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *));
+ extern int simple_setattr(struct dentry *, struct iattr *);
+ extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+ extern int simple_statfs(struct dentry *, struct kstatfs *);
+diff -NurpP --minimal linux-3.0.9/include/linux/gfs2_ondisk.h linux-3.0.9-vs2.3.2.1/include/linux/gfs2_ondisk.h
+--- linux-3.0.9/include/linux/gfs2_ondisk.h 2010-07-07 18:31:55.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/gfs2_ondisk.h 2011-06-10 22:11:24.000000000 +0200
+@@ -211,6 +211,9 @@ enum {
+ gfs2fl_NoAtime = 7,
+ gfs2fl_Sync = 8,
+ gfs2fl_System = 9,
++ gfs2fl_IXUnlink = 16,
++ gfs2fl_Barrier = 17,
++ gfs2fl_Cow = 18,
+ gfs2fl_TruncInProg = 29,
+ gfs2fl_InheritDirectio = 30,
+ gfs2fl_InheritJdata = 31,
+@@ -227,6 +230,9 @@ enum {
+ #define GFS2_DIF_NOATIME 0x00000080
+ #define GFS2_DIF_SYNC 0x00000100
+ #define GFS2_DIF_SYSTEM 0x00000200 /* New in gfs2 */
++#define GFS2_DIF_IXUNLINK 0x00010000
++#define GFS2_DIF_BARRIER 0x00020000
++#define GFS2_DIF_COW 0x00040000
+ #define GFS2_DIF_TRUNC_IN_PROG 0x20000000 /* New in gfs2 */
+ #define GFS2_DIF_INHERIT_DIRECTIO 0x40000000
+ #define GFS2_DIF_INHERIT_JDATA 0x80000000
+diff -NurpP --minimal linux-3.0.9/include/linux/if_tun.h linux-3.0.9-vs2.3.2.1/include/linux/if_tun.h
+--- linux-3.0.9/include/linux/if_tun.h 2010-08-02 16:52:54.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/if_tun.h 2011-06-10 22:11:24.000000000 +0200
+@@ -53,6 +53,7 @@
+ #define TUNDETACHFILTER _IOW('T', 214, struct sock_fprog)
+ #define TUNGETVNETHDRSZ _IOR('T', 215, int)
+ #define TUNSETVNETHDRSZ _IOW('T', 216, int)
++#define TUNSETNID _IOW('T', 217, int)
+
+ /* TUNSETIFF ifr flags */
+ #define IFF_TUN 0x0001
+diff -NurpP --minimal linux-3.0.9/include/linux/init_task.h linux-3.0.9-vs2.3.2.1/include/linux/init_task.h
+--- linux-3.0.9/include/linux/init_task.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/init_task.h 2011-06-10 22:11:24.000000000 +0200
+@@ -193,6 +193,10 @@ extern struct cred init_cred;
+ INIT_FTRACE_GRAPH \
+ INIT_TRACE_RECURSION \
+ INIT_TASK_RCU_PREEMPT(tsk) \
++ .xid = 0, \
++ .vx_info = NULL, \
++ .nid = 0, \
++ .nx_info = NULL, \
+ }
+
+
+diff -NurpP --minimal linux-3.0.9/include/linux/ipc.h linux-3.0.9-vs2.3.2.1/include/linux/ipc.h
+--- linux-3.0.9/include/linux/ipc.h 2009-12-03 20:02:55.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/ipc.h 2011-06-10 22:11:24.000000000 +0200
+@@ -91,6 +91,7 @@ struct kern_ipc_perm
+ key_t key;
+ uid_t uid;
+ gid_t gid;
++ xid_t xid;
+ uid_t cuid;
+ gid_t cgid;
+ mode_t mode;
+diff -NurpP --minimal linux-3.0.9/include/linux/ipc_namespace.h linux-3.0.9-vs2.3.2.1/include/linux/ipc_namespace.h
+--- linux-3.0.9/include/linux/ipc_namespace.h 2011-05-22 16:17:55.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/ipc_namespace.h 2011-06-13 14:09:44.000000000 +0200
+@@ -94,7 +94,8 @@ static inline int mq_init_ns(struct ipc_
+
+ #if defined(CONFIG_IPC_NS)
+ extern struct ipc_namespace *copy_ipcs(unsigned long flags,
+- struct task_struct *tsk);
++ struct ipc_namespace *old_ns,
++ struct user_namespace *user_ns);
+ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
+ {
+ if (ns)
+@@ -105,12 +106,13 @@ static inline struct ipc_namespace *get_
+ extern void put_ipc_ns(struct ipc_namespace *ns);
+ #else
+ static inline struct ipc_namespace *copy_ipcs(unsigned long flags,
+- struct task_struct *tsk)
++ struct ipc_namespace *old_ns,
++ struct user_namespace *user_ns)
+ {
+ if (flags & CLONE_NEWIPC)
+ return ERR_PTR(-EINVAL);
+
+- return tsk->nsproxy->ipc_ns;
++ return old_ns;
+ }
+
+ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
+diff -NurpP --minimal linux-3.0.9/include/linux/loop.h linux-3.0.9-vs2.3.2.1/include/linux/loop.h
+--- linux-3.0.9/include/linux/loop.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/loop.h 2011-06-10 22:11:24.000000000 +0200
+@@ -45,6 +45,7 @@ struct loop_device {
+ struct loop_func_table *lo_encryption;
+ __u32 lo_init[2];
+ uid_t lo_key_owner; /* Who set the key */
++ xid_t lo_xid;
+ int (*ioctl)(struct loop_device *, int cmd,
+ unsigned long arg);
+
+diff -NurpP --minimal linux-3.0.9/include/linux/magic.h linux-3.0.9-vs2.3.2.1/include/linux/magic.h
+--- linux-3.0.9/include/linux/magic.h 2011-05-22 16:17:55.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/magic.h 2011-06-10 22:11:24.000000000 +0200
+@@ -3,7 +3,7 @@
+
+ #define ADFS_SUPER_MAGIC 0xadf5
+ #define AFFS_SUPER_MAGIC 0xadff
+-#define AFS_SUPER_MAGIC 0x5346414F
++#define AFS_SUPER_MAGIC 0x5346414F
+ #define AUTOFS_SUPER_MAGIC 0x0187
+ #define CODA_SUPER_MAGIC 0x73757245
+ #define CRAMFS_MAGIC 0x28cd3d45 /* some random number */
+@@ -41,6 +41,7 @@
+ #define NFS_SUPER_MAGIC 0x6969
+ #define OPENPROM_SUPER_MAGIC 0x9fa1
+ #define PROC_SUPER_MAGIC 0x9fa0
++#define DEVPTS_SUPER_MAGIC 0x1cd1
+ #define QNX4_SUPER_MAGIC 0x002f /* qnx4 fs detection */
+
+ #define REISERFS_SUPER_MAGIC 0x52654973 /* used by gcc */
+diff -NurpP --minimal linux-3.0.9/include/linux/major.h linux-3.0.9-vs2.3.2.1/include/linux/major.h
+--- linux-3.0.9/include/linux/major.h 2009-09-10 15:26:25.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/major.h 2011-06-10 22:11:24.000000000 +0200
+@@ -15,6 +15,7 @@
+ #define HD_MAJOR IDE0_MAJOR
+ #define PTY_SLAVE_MAJOR 3
+ #define TTY_MAJOR 4
++#define VROOT_MAJOR 4
+ #define TTYAUX_MAJOR 5
+ #define LP_MAJOR 6
+ #define VCS_MAJOR 7
+diff -NurpP --minimal linux-3.0.9/include/linux/memcontrol.h linux-3.0.9-vs2.3.2.1/include/linux/memcontrol.h
+--- linux-3.0.9/include/linux/memcontrol.h 2011-07-22 11:18:10.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/memcontrol.h 2011-06-22 12:39:15.000000000 +0200
+@@ -86,6 +86,13 @@ extern struct mem_cgroup *try_get_mem_cg
+ extern struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
+ extern struct mem_cgroup *try_get_mem_cgroup_from_mm(struct mm_struct *mm);
+
++extern u64 mem_cgroup_res_read_u64(struct mem_cgroup *mem, int member);
++extern u64 mem_cgroup_memsw_read_u64(struct mem_cgroup *mem, int member);
++
++extern s64 mem_cgroup_stat_read_cache(struct mem_cgroup *mem);
++extern s64 mem_cgroup_stat_read_anon(struct mem_cgroup *mem);
++extern s64 mem_cgroup_stat_read_mapped(struct mem_cgroup *mem);
++
+ static inline
+ int mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *cgroup)
+ {
+diff -NurpP --minimal linux-3.0.9/include/linux/mm_types.h linux-3.0.9-vs2.3.2.1/include/linux/mm_types.h
+--- linux-3.0.9/include/linux/mm_types.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/mm_types.h 2011-11-15 17:37:07.000000000 +0100
+@@ -282,6 +282,7 @@ struct mm_struct {
+
+ /* Architecture-specific MM context */
+ mm_context_t context;
++ struct vx_info *mm_vx_info;
+
+ /* Swap token stuff */
+ /*
+diff -NurpP --minimal linux-3.0.9/include/linux/mmzone.h linux-3.0.9-vs2.3.2.1/include/linux/mmzone.h
+--- linux-3.0.9/include/linux/mmzone.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/mmzone.h 2011-07-01 11:35:35.000000000 +0200
+@@ -654,6 +654,13 @@ typedef struct pglist_data {
+ __pgdat->node_start_pfn + __pgdat->node_spanned_pages;\
+ })
+
++#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
++
++#define node_end_pfn(nid) ({\
++ pg_data_t *__pgdat = NODE_DATA(nid);\
++ __pgdat->node_start_pfn + __pgdat->node_spanned_pages;\
++})
++
+ #include <linux/memory_hotplug.h>
+
+ extern struct mutex zonelists_mutex;
+diff -NurpP --minimal linux-3.0.9/include/linux/mount.h linux-3.0.9-vs2.3.2.1/include/linux/mount.h
+--- linux-3.0.9/include/linux/mount.h 2011-03-15 18:07:39.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/mount.h 2011-06-10 22:11:24.000000000 +0200
+@@ -52,6 +52,9 @@ struct mnt_pcp {
+ int mnt_writers;
+ };
+
++#define MNT_TAGID 0x10000
++#define MNT_NOTAG 0x20000
++
+ struct vfsmount {
+ struct list_head mnt_hash;
+ struct vfsmount *mnt_parent; /* fs we are mounted on */
+@@ -86,6 +89,7 @@ struct vfsmount {
+ int mnt_expiry_mark; /* true if marked for expiry */
+ int mnt_pinned;
+ int mnt_ghosts;
++ tag_t mnt_tag; /* tagging used for vfsmount */
+ };
+
+ struct file; /* forward dec */
+diff -NurpP --minimal linux-3.0.9/include/linux/net.h linux-3.0.9-vs2.3.2.1/include/linux/net.h
+--- linux-3.0.9/include/linux/net.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/net.h 2011-06-10 22:11:24.000000000 +0200
+@@ -72,6 +72,7 @@ struct net;
+ #define SOCK_NOSPACE 2
+ #define SOCK_PASSCRED 3
+ #define SOCK_PASSSEC 4
++#define SOCK_USER_SOCKET 5
+
+ #ifndef ARCH_HAS_SOCKET_TYPES
+ /**
+diff -NurpP --minimal linux-3.0.9/include/linux/netdevice.h linux-3.0.9-vs2.3.2.1/include/linux/netdevice.h
+--- linux-3.0.9/include/linux/netdevice.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/netdevice.h 2011-09-17 19:22:49.000000000 +0200
+@@ -1650,6 +1650,7 @@ extern void netdev_resync_ops(struct ne
+ extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
+ extern struct net_device *dev_get_by_index(struct net *net, int ifindex);
+ extern struct net_device *__dev_get_by_index(struct net *net, int ifindex);
++extern struct net_device *dev_get_by_index_real_rcu(struct net *net, int ifindex);
+ extern struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
+ extern int dev_restart(struct net_device *dev);
+ #ifdef CONFIG_NETPOLL_TRAP
+diff -NurpP --minimal linux-3.0.9/include/linux/nfs_mount.h linux-3.0.9-vs2.3.2.1/include/linux/nfs_mount.h
+--- linux-3.0.9/include/linux/nfs_mount.h 2011-01-05 21:50:31.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/nfs_mount.h 2011-06-10 22:11:24.000000000 +0200
+@@ -63,7 +63,8 @@ struct nfs_mount_data {
+ #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 */
+ #define NFS_MOUNT_NORDIRPLUS 0x4000 /* 5 */
+ #define NFS_MOUNT_UNSHARED 0x8000 /* 5 */
+-#define NFS_MOUNT_FLAGMASK 0xFFFF
++#define NFS_MOUNT_TAGGED 0x10000 /* context tagging */
++#define NFS_MOUNT_FLAGMASK 0x1FFFF
+
+ /* The following are for internal use only */
+ #define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000
+diff -NurpP --minimal linux-3.0.9/include/linux/nsproxy.h linux-3.0.9-vs2.3.2.1/include/linux/nsproxy.h
+--- linux-3.0.9/include/linux/nsproxy.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/nsproxy.h 2011-06-10 22:11:24.000000000 +0200
+@@ -3,6 +3,7 @@
+
+ #include <linux/spinlock.h>
+ #include <linux/sched.h>
++#include <linux/vserver/debug.h>
+
+ struct mnt_namespace;
+ struct uts_namespace;
+@@ -63,22 +64,33 @@ static inline struct nsproxy *task_nspro
+ }
+
+ int copy_namespaces(unsigned long flags, struct task_struct *tsk);
++struct nsproxy *copy_nsproxy(struct nsproxy *orig);
+ void exit_task_namespaces(struct task_struct *tsk);
+ void switch_task_namespaces(struct task_struct *tsk, struct nsproxy *new);
+ void free_nsproxy(struct nsproxy *ns);
+ int unshare_nsproxy_namespaces(unsigned long, struct nsproxy **,
+ struct fs_struct *);
+
+-static inline void put_nsproxy(struct nsproxy *ns)
++#define get_nsproxy(n) __get_nsproxy(n, __FILE__, __LINE__)
++
++static inline void __get_nsproxy(struct nsproxy *ns,
++ const char *_file, int _line)
+ {
+- if (atomic_dec_and_test(&ns->count)) {
+- free_nsproxy(ns);
+- }
++ vxlprintk(VXD_CBIT(space, 0), "get_nsproxy(%p[%u])",
++ ns, atomic_read(&ns->count), _file, _line);
++ atomic_inc(&ns->count);
+ }
+
+-static inline void get_nsproxy(struct nsproxy *ns)
++#define put_nsproxy(n) __put_nsproxy(n, __FILE__, __LINE__)
++
++static inline void __put_nsproxy(struct nsproxy *ns,
++ const char *_file, int _line)
+ {
+- atomic_inc(&ns->count);
++ vxlprintk(VXD_CBIT(space, 0), "put_nsproxy(%p[%u])",
++ ns, atomic_read(&ns->count), _file, _line);
++ if (atomic_dec_and_test(&ns->count)) {
++ free_nsproxy(ns);
++ }
+ }
+
+ #endif
+diff -NurpP --minimal linux-3.0.9/include/linux/pid.h linux-3.0.9-vs2.3.2.1/include/linux/pid.h
+--- linux-3.0.9/include/linux/pid.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/pid.h 2011-06-10 22:11:24.000000000 +0200
+@@ -8,7 +8,8 @@ enum pid_type
+ PIDTYPE_PID,
+ PIDTYPE_PGID,
+ PIDTYPE_SID,
+- PIDTYPE_MAX
++ PIDTYPE_MAX,
++ PIDTYPE_REALPID
+ };
+
+ /*
+@@ -171,6 +172,7 @@ static inline pid_t pid_nr(struct pid *p
+ }
+
+ pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns);
++pid_t pid_unmapped_nr_ns(struct pid *pid, struct pid_namespace *ns);
+ pid_t pid_vnr(struct pid *pid);
+
+ #define do_each_pid_task(pid, type, task) \
+diff -NurpP --minimal linux-3.0.9/include/linux/proc_fs.h linux-3.0.9-vs2.3.2.1/include/linux/proc_fs.h
+--- linux-3.0.9/include/linux/proc_fs.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/proc_fs.h 2011-06-10 22:11:24.000000000 +0200
+@@ -56,6 +56,7 @@ struct proc_dir_entry {
+ nlink_t nlink;
+ uid_t uid;
+ gid_t gid;
++ int vx_flags;
+ loff_t size;
+ const struct inode_operations *proc_iops;
+ /*
+@@ -252,12 +253,18 @@ extern const struct proc_ns_operations n
+ extern const struct proc_ns_operations utsns_operations;
+ extern const struct proc_ns_operations ipcns_operations;
+
++struct vx_info;
++struct nx_info;
++
+ union proc_op {
+ int (*proc_get_link)(struct inode *, struct path *);
+ int (*proc_read)(struct task_struct *task, char *page);
+ int (*proc_show)(struct seq_file *m,
+ struct pid_namespace *ns, struct pid *pid,
+ struct task_struct *task);
++ int (*proc_vs_read)(char *page);
++ int (*proc_vxi_read)(struct vx_info *vxi, char *page);
++ int (*proc_nxi_read)(struct nx_info *nxi, char *page);
+ };
+
+ struct ctl_table_header;
+@@ -265,6 +272,7 @@ struct ctl_table;
+
+ struct proc_inode {
+ struct pid *pid;
++ int vx_flags;
+ int fd;
+ union proc_op op;
+ struct proc_dir_entry *pde;
+diff -NurpP --minimal linux-3.0.9/include/linux/quotaops.h linux-3.0.9-vs2.3.2.1/include/linux/quotaops.h
+--- linux-3.0.9/include/linux/quotaops.h 2011-05-22 16:17:57.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/quotaops.h 2011-06-10 22:11:24.000000000 +0200
+@@ -8,6 +8,7 @@
+ #define _LINUX_QUOTAOPS_
+
+ #include <linux/fs.h>
++#include <linux/vs_dlimit.h>
+
+ #define DQUOT_SPACE_WARN 0x1
+ #define DQUOT_SPACE_RESERVE 0x2
+@@ -204,11 +205,12 @@ static inline void dquot_drop(struct ino
+
+ static inline int dquot_alloc_inode(const struct inode *inode)
+ {
+- return 0;
++ return dl_alloc_inode(inode);
+ }
+
+ static inline void dquot_free_inode(const struct inode *inode)
+ {
++ dl_free_inode(inode);
+ }
+
+ static inline int dquot_transfer(struct inode *inode, struct iattr *iattr)
+@@ -219,6 +221,10 @@ static inline int dquot_transfer(struct
+ static inline int __dquot_alloc_space(struct inode *inode, qsize_t number,
+ int flags)
+ {
++ int ret = 0;
++
++ if ((ret = dl_alloc_space(inode, number)))
++ return ret;
+ if (!(flags & DQUOT_SPACE_RESERVE))
+ inode_add_bytes(inode, number);
+ return 0;
+@@ -229,6 +235,7 @@ static inline void __dquot_free_space(st
+ {
+ if (!(flags & DQUOT_SPACE_RESERVE))
+ inode_sub_bytes(inode, number);
++ dl_free_space(inode, number);
+ }
+
+ static inline int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
+diff -NurpP --minimal linux-3.0.9/include/linux/reboot.h linux-3.0.9-vs2.3.2.1/include/linux/reboot.h
+--- linux-3.0.9/include/linux/reboot.h 2010-07-07 18:31:56.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/reboot.h 2011-06-10 22:11:24.000000000 +0200
+@@ -33,6 +33,7 @@
+ #define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4
+ #define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2
+ #define LINUX_REBOOT_CMD_KEXEC 0x45584543
++#define LINUX_REBOOT_CMD_OOM 0xDEADBEEF
+
+
+ #ifdef __KERNEL__
+diff -NurpP --minimal linux-3.0.9/include/linux/reiserfs_fs.h linux-3.0.9-vs2.3.2.1/include/linux/reiserfs_fs.h
+--- linux-3.0.9/include/linux/reiserfs_fs.h 2011-05-22 16:17:58.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/reiserfs_fs.h 2011-06-10 22:11:24.000000000 +0200
+@@ -976,6 +976,11 @@ struct stat_data_v1 {
+ #define REISERFS_COMPR_FL FS_COMPR_FL
+ #define REISERFS_NOTAIL_FL FS_NOTAIL_FL
+
++/* unfortunately reiserfs sdattr is only 16 bit */
++#define REISERFS_IXUNLINK_FL (FS_IXUNLINK_FL >> 16)
++#define REISERFS_BARRIER_FL (FS_BARRIER_FL >> 16)
++#define REISERFS_COW_FL (FS_COW_FL >> 16)
++
+ /* persistent flags that file inherits from the parent directory */
+ #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \
+ REISERFS_SYNC_FL | \
+@@ -985,6 +990,9 @@ struct stat_data_v1 {
+ REISERFS_COMPR_FL | \
+ REISERFS_NOTAIL_FL )
+
++#define REISERFS_FL_USER_VISIBLE 0x80FF
++#define REISERFS_FL_USER_MODIFIABLE 0x80FF
++
+ /* Stat Data on disk (reiserfs version of UFS disk inode minus the
+ address blocks) */
+ struct stat_data {
+@@ -2073,6 +2081,7 @@ static inline void reiserfs_update_sd(st
+ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode);
+ void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs);
+ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr);
++int reiserfs_sync_flags(struct inode *inode, int, int);
+
+ int __reiserfs_write_begin(struct page *page, unsigned from, unsigned len);
+
+diff -NurpP --minimal linux-3.0.9/include/linux/reiserfs_fs_sb.h linux-3.0.9-vs2.3.2.1/include/linux/reiserfs_fs_sb.h
+--- linux-3.0.9/include/linux/reiserfs_fs_sb.h 2010-02-25 11:52:07.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/reiserfs_fs_sb.h 2011-06-10 22:11:24.000000000 +0200
+@@ -476,6 +476,7 @@ enum reiserfs_mount_options {
+ REISERFS_EXPOSE_PRIVROOT,
+ REISERFS_BARRIER_NONE,
+ REISERFS_BARRIER_FLUSH,
++ REISERFS_TAGGED,
+
+ /* Actions on error */
+ REISERFS_ERROR_PANIC,
+diff -NurpP --minimal linux-3.0.9/include/linux/sched.h linux-3.0.9-vs2.3.2.1/include/linux/sched.h
+--- linux-3.0.9/include/linux/sched.h 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/sched.h 2011-10-18 13:51:13.000000000 +0200
+@@ -1406,6 +1406,14 @@ struct task_struct {
+ #endif
+ seccomp_t seccomp;
+
++/* vserver context data */
++ struct vx_info *vx_info;
++ struct nx_info *nx_info;
++
++ xid_t xid;
++ nid_t nid;
++ tag_t tag;
++
+ /* Thread group tracking */
+ u32 parent_exec_id;
+ u32 self_exec_id;
+@@ -1649,6 +1657,11 @@ struct pid_namespace;
+ pid_t __task_pid_nr_ns(struct task_struct *task, enum pid_type type,
+ struct pid_namespace *ns);
+
++#include <linux/vserver/base.h>
++#include <linux/vserver/context.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/pid.h>
++
+ static inline pid_t task_pid_nr(struct task_struct *tsk)
+ {
+ return tsk->pid;
+@@ -1662,7 +1675,8 @@ static inline pid_t task_pid_nr_ns(struc
+
+ static inline pid_t task_pid_vnr(struct task_struct *tsk)
+ {
+- return __task_pid_nr_ns(tsk, PIDTYPE_PID, NULL);
++ // return __task_pid_nr_ns(tsk, PIDTYPE_PID, NULL);
++ return vx_map_pid(__task_pid_nr_ns(tsk, PIDTYPE_PID, NULL));
+ }
+
+
+@@ -1675,7 +1689,7 @@ pid_t task_tgid_nr_ns(struct task_struct
+
+ static inline pid_t task_tgid_vnr(struct task_struct *tsk)
+ {
+- return pid_vnr(task_tgid(tsk));
++ return vx_map_tgid(pid_vnr(task_tgid(tsk)));
+ }
+
+
+diff -NurpP --minimal linux-3.0.9/include/linux/shmem_fs.h linux-3.0.9-vs2.3.2.1/include/linux/shmem_fs.h
+--- linux-3.0.9/include/linux/shmem_fs.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/shmem_fs.h 2011-07-01 11:35:35.000000000 +0200
+@@ -12,6 +12,9 @@
+
+ #define SHMEM_SYMLINK_INLINE_LEN (SHMEM_NR_DIRECT * sizeof(swp_entry_t))
+
++#define TMPFS_SUPER_MAGIC 0x01021994
++
++
+ struct shmem_inode_info {
+ spinlock_t lock;
+ unsigned long flags;
+diff -NurpP --minimal linux-3.0.9/include/linux/stat.h linux-3.0.9-vs2.3.2.1/include/linux/stat.h
+--- linux-3.0.9/include/linux/stat.h 2008-12-25 00:26:37.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/stat.h 2011-06-10 22:11:24.000000000 +0200
+@@ -66,6 +66,7 @@ struct kstat {
+ unsigned int nlink;
+ uid_t uid;
+ gid_t gid;
++ tag_t tag;
+ dev_t rdev;
+ loff_t size;
+ struct timespec atime;
+diff -NurpP --minimal linux-3.0.9/include/linux/sunrpc/auth.h linux-3.0.9-vs2.3.2.1/include/linux/sunrpc/auth.h
+--- linux-3.0.9/include/linux/sunrpc/auth.h 2011-03-15 18:07:39.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/sunrpc/auth.h 2011-06-10 22:11:24.000000000 +0200
+@@ -25,6 +25,7 @@
+ struct auth_cred {
+ uid_t uid;
+ gid_t gid;
++ tag_t tag;
+ struct group_info *group_info;
+ unsigned char machine_cred : 1;
+ };
+diff -NurpP --minimal linux-3.0.9/include/linux/sunrpc/clnt.h linux-3.0.9-vs2.3.2.1/include/linux/sunrpc/clnt.h
+--- linux-3.0.9/include/linux/sunrpc/clnt.h 2011-05-22 16:17:58.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/sunrpc/clnt.h 2011-06-10 22:11:24.000000000 +0200
+@@ -49,7 +49,8 @@ struct rpc_clnt {
+ unsigned int cl_softrtry : 1,/* soft timeouts */
+ cl_discrtry : 1,/* disconnect before retry */
+ cl_autobind : 1,/* use getport() */
+- cl_chatty : 1;/* be verbose */
++ cl_chatty : 1,/* be verbose */
++ cl_tag : 1;/* context tagging */
+
+ struct rpc_rtt * cl_rtt; /* RTO estimator data */
+ const struct rpc_timeout *cl_timeout; /* Timeout strategy */
+diff -NurpP --minimal linux-3.0.9/include/linux/syscalls.h linux-3.0.9-vs2.3.2.1/include/linux/syscalls.h
+--- linux-3.0.9/include/linux/syscalls.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/syscalls.h 2011-06-10 22:11:24.000000000 +0200
+@@ -483,6 +483,8 @@ asmlinkage long sys_symlink(const char _
+ asmlinkage long sys_unlink(const char __user *pathname);
+ asmlinkage long sys_rename(const char __user *oldname,
+ const char __user *newname);
++asmlinkage long sys_copyfile(const char __user *from, const char __user *to,
++ umode_t mode);
+ asmlinkage long sys_chmod(const char __user *filename, mode_t mode);
+ asmlinkage long sys_fchmod(unsigned int fd, mode_t mode);
+
+diff -NurpP --minimal linux-3.0.9/include/linux/sysctl.h linux-3.0.9-vs2.3.2.1/include/linux/sysctl.h
+--- linux-3.0.9/include/linux/sysctl.h 2011-03-15 18:07:40.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/sysctl.h 2011-06-10 22:11:24.000000000 +0200
+@@ -60,6 +60,7 @@ enum
+ CTL_ABI=9, /* Binary emulation */
+ CTL_CPU=10, /* CPU stuff (speed scaling, etc) */
+ CTL_ARLAN=254, /* arlan wireless driver */
++ CTL_VSERVER=4242, /* Linux-VServer debug */
+ CTL_S390DBF=5677, /* s390 debug */
+ CTL_SUNRPC=7249, /* sunrpc debug */
+ CTL_PM=9899, /* frv power management */
+@@ -94,6 +95,7 @@ enum
+
+ KERN_PANIC=15, /* int: panic timeout */
+ KERN_REALROOTDEV=16, /* real root device to mount after initrd */
++ KERN_VSHELPER=17, /* string: path to vshelper policy agent */
+
+ KERN_SPARC_REBOOT=21, /* reboot command on Sparc */
+ KERN_CTLALTDEL=22, /* int: allow ctl-alt-del to reboot */
+diff -NurpP --minimal linux-3.0.9/include/linux/sysfs.h linux-3.0.9-vs2.3.2.1/include/linux/sysfs.h
+--- linux-3.0.9/include/linux/sysfs.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/sysfs.h 2011-06-22 12:39:15.000000000 +0200
+@@ -19,6 +19,8 @@
+ #include <linux/kobject_ns.h>
+ #include <asm/atomic.h>
+
++#define SYSFS_SUPER_MAGIC 0x62656572
++
+ struct kobject;
+ struct module;
+ enum kobj_ns_type;
+diff -NurpP --minimal linux-3.0.9/include/linux/time.h linux-3.0.9-vs2.3.2.1/include/linux/time.h
+--- linux-3.0.9/include/linux/time.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/time.h 2011-06-10 22:11:24.000000000 +0200
+@@ -256,6 +256,9 @@ static __always_inline void timespec_add
+ a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
+ a->tv_nsec = ns;
+ }
++
++#include <linux/vs_time.h>
++
+ #endif /* __KERNEL__ */
+
+ #define NFDBITS __NFDBITS
+diff -NurpP --minimal linux-3.0.9/include/linux/types.h linux-3.0.9-vs2.3.2.1/include/linux/types.h
+--- linux-3.0.9/include/linux/types.h 2011-05-22 16:17:58.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/types.h 2011-06-10 22:11:24.000000000 +0200
+@@ -40,6 +40,9 @@ typedef __kernel_uid32_t uid_t;
+ typedef __kernel_gid32_t gid_t;
+ typedef __kernel_uid16_t uid16_t;
+ typedef __kernel_gid16_t gid16_t;
++typedef unsigned int xid_t;
++typedef unsigned int nid_t;
++typedef unsigned int tag_t;
+
+ typedef unsigned long uintptr_t;
+
+diff -NurpP --minimal linux-3.0.9/include/linux/utsname.h linux-3.0.9-vs2.3.2.1/include/linux/utsname.h
+--- linux-3.0.9/include/linux/utsname.h 2011-05-22 16:17:58.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/linux/utsname.h 2011-06-13 14:36:48.000000000 +0200
+@@ -54,7 +54,8 @@ static inline void get_uts_ns(struct uts
+ }
+
+ extern struct uts_namespace *copy_utsname(unsigned long flags,
+- struct task_struct *tsk);
++ struct uts_namespace *old_ns,
++ struct user_namespace *user_ns);
+ extern void free_uts_ns(struct kref *kref);
+
+ static inline void put_uts_ns(struct uts_namespace *ns)
+@@ -71,12 +72,13 @@ static inline void put_uts_ns(struct uts
+ }
+
+ static inline struct uts_namespace *copy_utsname(unsigned long flags,
+- struct task_struct *tsk)
++ struct uts_namespace *old_ns,
++ struct user_namespace *user_ns)
+ {
+ if (flags & CLONE_NEWUTS)
+ return ERR_PTR(-EINVAL);
+
+- return tsk->nsproxy->uts_ns;
++ return old_ns;
+ }
+ #endif
+
+diff -NurpP --minimal linux-3.0.9/include/linux/vroot.h linux-3.0.9-vs2.3.2.1/include/linux/vroot.h
+--- linux-3.0.9/include/linux/vroot.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vroot.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,51 @@
++
++/*
++ * include/linux/vroot.h
++ *
++ * written by Herbert Ptzl, 9/11/2002
++ * ported to 2.6 by Herbert Ptzl, 30/12/2004
++ *
++ * Copyright (C) 2002-2007 by Herbert Ptzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ */
++
++#ifndef _LINUX_VROOT_H
++#define _LINUX_VROOT_H
++
++
++#ifdef __KERNEL__
++
++/* Possible states of device */
++enum {
++ Vr_unbound,
++ Vr_bound,
++};
++
++struct vroot_device {
++ int vr_number;
++ int vr_refcnt;
++
++ struct semaphore vr_ctl_mutex;
++ struct block_device *vr_device;
++ int vr_state;
++};
++
++
++typedef struct block_device *(vroot_grb_func)(struct block_device *);
++
++extern int register_vroot_grb(vroot_grb_func *);
++extern int unregister_vroot_grb(vroot_grb_func *);
++
++#endif /* __KERNEL__ */
++
++#define MAX_VROOT_DEFAULT 8
++
++/*
++ * IOCTL commands --- we will commandeer 0x56 ('V')
++ */
++
++#define VROOT_SET_DEV 0x5600
++#define VROOT_CLR_DEV 0x5601
++
++#endif /* _LINUX_VROOT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_base.h linux-3.0.9-vs2.3.2.1/include/linux/vs_base.h
+--- linux-3.0.9/include/linux/vs_base.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_base.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,10 @@
++#ifndef _VS_BASE_H
++#define _VS_BASE_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_context.h linux-3.0.9-vs2.3.2.1/include/linux/vs_context.h
+--- linux-3.0.9/include/linux/vs_context.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_context.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,242 @@
++#ifndef _VS_CONTEXT_H
++#define _VS_CONTEXT_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/context.h"
++#include "vserver/history.h"
++#include "vserver/debug.h"
++
++#include <linux/sched.h>
++
++
++#define get_vx_info(i) __get_vx_info(i, __FILE__, __LINE__, __HERE__)
++
++static inline struct vx_info *__get_vx_info(struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (!vxi)
++ return NULL;
++
++ vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_get_vx_info(vxi, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ return vxi;
++}
++
++
++extern void free_vx_info(struct vx_info *);
++
++#define put_vx_info(i) __put_vx_info(i, __FILE__, __LINE__, __HERE__)
++
++static inline void __put_vx_info(struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (!vxi)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_put_vx_info(vxi, _here);
++
++ if (atomic_dec_and_test(&vxi->vx_usecnt))
++ free_vx_info(vxi);
++}
++
++
++#define init_vx_info(p, i) \
++ __init_vx_info(p, i, __FILE__, __LINE__, __HERE__)
++
++static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ if (vxi) {
++ vxlprintk(VXD_CBIT(xid, 3),
++ "init_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_init_vx_info(vxi, vxp, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ }
++ *vxp = vxi;
++}
++
++
++#define set_vx_info(p, i) \
++ __set_vx_info(p, i, __FILE__, __LINE__, __HERE__)
++
++static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxo;
++
++ if (!vxi)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_set_vx_info(vxi, vxp, _here);
++
++ atomic_inc(&vxi->vx_usecnt);
++ vxo = xchg(vxp, vxi);
++ BUG_ON(vxo);
++}
++
++
++#define clr_vx_info(p) __clr_vx_info(p, __FILE__, __LINE__, __HERE__)
++
++static inline void __clr_vx_info(struct vx_info **vxp,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxo;
++
++ vxo = xchg(vxp, NULL);
++ if (!vxo)
++ return;
++
++ vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])",
++ vxo, vxo ? vxo->vx_id : 0,
++ vxo ? atomic_read(&vxo->vx_usecnt) : 0,
++ _file, _line);
++ __vxh_clr_vx_info(vxo, vxp, _here);
++
++ if (atomic_dec_and_test(&vxo->vx_usecnt))
++ free_vx_info(vxo);
++}
++
++
++#define claim_vx_info(v, p) \
++ __claim_vx_info(v, p, __FILE__, __LINE__, __HERE__)
++
++static inline void __claim_vx_info(struct vx_info *vxi,
++ struct task_struct *task,
++ const char *_file, int _line, void *_here)
++{
++ vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ vxi ? atomic_read(&vxi->vx_tasks) : 0,
++ task, _file, _line);
++ __vxh_claim_vx_info(vxi, task, _here);
++
++ atomic_inc(&vxi->vx_tasks);
++}
++
++
++extern void unhash_vx_info(struct vx_info *);
++
++#define release_vx_info(v, p) \
++ __release_vx_info(v, p, __FILE__, __LINE__, __HERE__)
++
++static inline void __release_vx_info(struct vx_info *vxi,
++ struct task_struct *task,
++ const char *_file, int _line, void *_here)
++{
++ vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p",
++ vxi, vxi ? vxi->vx_id : 0,
++ vxi ? atomic_read(&vxi->vx_usecnt) : 0,
++ vxi ? atomic_read(&vxi->vx_tasks) : 0,
++ task, _file, _line);
++ __vxh_release_vx_info(vxi, task, _here);
++
++ might_sleep();
++
++ if (atomic_dec_and_test(&vxi->vx_tasks))
++ unhash_vx_info(vxi);
++}
++
++
++#define task_get_vx_info(p) \
++ __task_get_vx_info(p, __FILE__, __LINE__, __HERE__)
++
++static inline struct vx_info *__task_get_vx_info(struct task_struct *p,
++ const char *_file, int _line, void *_here)
++{
++ struct vx_info *vxi;
++
++ task_lock(p);
++ vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)",
++ p, _file, _line);
++ vxi = __get_vx_info(p->vx_info, _file, _line, _here);
++ task_unlock(p);
++ return vxi;
++}
++
++
++static inline void __wakeup_vx_info(struct vx_info *vxi)
++{
++ if (waitqueue_active(&vxi->vx_wait))
++ wake_up_interruptible(&vxi->vx_wait);
++}
++
++
++#define enter_vx_info(v, s) __enter_vx_info(v, s, __FILE__, __LINE__)
++
++static inline void __enter_vx_info(struct vx_info *vxi,
++ struct vx_info_save *vxis, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(xid, 5), "enter_vx_info(%p[#%d],%p) %p[#%d,%p]",
++ vxi, vxi ? vxi->vx_id : 0, vxis, current,
++ current->xid, current->vx_info, _file, _line);
++ vxis->vxi = xchg(&current->vx_info, vxi);
++ vxis->xid = current->xid;
++ current->xid = vxi ? vxi->vx_id : 0;
++}
++
++#define leave_vx_info(s) __leave_vx_info(s, __FILE__, __LINE__)
++
++static inline void __leave_vx_info(struct vx_info_save *vxis,
++ const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(xid, 5), "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]",
++ vxis, vxis->xid, vxis->vxi, current,
++ current->xid, current->vx_info, _file, _line);
++ (void)xchg(&current->vx_info, vxis->vxi);
++ current->xid = vxis->xid;
++}
++
++
++static inline void __enter_vx_admin(struct vx_info_save *vxis)
++{
++ vxis->vxi = xchg(&current->vx_info, NULL);
++ vxis->xid = xchg(&current->xid, (xid_t)0);
++}
++
++static inline void __leave_vx_admin(struct vx_info_save *vxis)
++{
++ (void)xchg(&current->xid, vxis->xid);
++ (void)xchg(&current->vx_info, vxis->vxi);
++}
++
++#define task_is_init(p) \
++ __task_is_init(p, __FILE__, __LINE__, __HERE__)
++
++static inline int __task_is_init(struct task_struct *p,
++ const char *_file, int _line, void *_here)
++{
++ int is_init = is_global_init(p);
++
++ task_lock(p);
++ if (p->vx_info)
++ is_init = p->vx_info->vx_initpid == p->pid;
++ task_unlock(p);
++ return is_init;
++}
++
++extern void exit_vx_info(struct task_struct *, int);
++extern void exit_vx_info_early(struct task_struct *, int);
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_cowbl.h linux-3.0.9-vs2.3.2.1/include/linux/vs_cowbl.h
+--- linux-3.0.9/include/linux/vs_cowbl.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_cowbl.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,48 @@
++#ifndef _VS_COWBL_H
++#define _VS_COWBL_H
++
++#include <linux/fs.h>
++#include <linux/dcache.h>
++#include <linux/namei.h>
++#include <linux/slab.h>
++
++extern struct dentry *cow_break_link(const char *pathname);
++
++static inline int cow_check_and_break(struct path *path)
++{
++ struct inode *inode = path->dentry->d_inode;
++ int error = 0;
++
++ /* do we need this check? */
++ if (IS_RDONLY(inode))
++ return -EROFS;
++
++ if (IS_COW(inode)) {
++ if (IS_COW_LINK(inode)) {
++ struct dentry *new_dentry, *old_dentry = path->dentry;
++ char *pp, *buf;
++
++ buf = kmalloc(PATH_MAX, GFP_KERNEL);
++ if (!buf) {
++ return -ENOMEM;
++ }
++ pp = d_path(path, buf, PATH_MAX);
++ new_dentry = cow_break_link(pp);
++ kfree(buf);
++ if (!IS_ERR(new_dentry)) {
++ path->dentry = new_dentry;
++ dput(old_dentry);
++ } else
++ error = PTR_ERR(new_dentry);
++ } else {
++ inode->i_flags &= ~(S_IXUNLINK | S_IMMUTABLE);
++ inode->i_ctime = CURRENT_TIME;
++ mark_inode_dirty(inode);
++ }
++ }
++ return error;
++}
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_cvirt.h linux-3.0.9-vs2.3.2.1/include/linux/vs_cvirt.h
+--- linux-3.0.9/include/linux/vs_cvirt.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_cvirt.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,50 @@
++#ifndef _VS_CVIRT_H
++#define _VS_CVIRT_H
++
++#include "vserver/cvirt.h"
++#include "vserver/context.h"
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++
++static inline void vx_activate_task(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info)) {
++ vx_update_load(vxi);
++ atomic_inc(&vxi->cvirt.nr_running);
++ }
++}
++
++static inline void vx_deactivate_task(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info)) {
++ vx_update_load(vxi);
++ atomic_dec(&vxi->cvirt.nr_running);
++ }
++}
++
++static inline void vx_uninterruptible_inc(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info))
++ atomic_inc(&vxi->cvirt.nr_uninterruptible);
++}
++
++static inline void vx_uninterruptible_dec(struct task_struct *p)
++{
++ struct vx_info *vxi;
++
++ if ((vxi = p->vx_info))
++ atomic_dec(&vxi->cvirt.nr_uninterruptible);
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_device.h linux-3.0.9-vs2.3.2.1/include/linux/vs_device.h
+--- linux-3.0.9/include/linux/vs_device.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_device.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,45 @@
++#ifndef _VS_DEVICE_H
++#define _VS_DEVICE_H
++
++#include "vserver/base.h"
++#include "vserver/device.h"
++#include "vserver/debug.h"
++
++
++#ifdef CONFIG_VSERVER_DEVICE
++
++int vs_map_device(struct vx_info *, dev_t, dev_t *, umode_t);
++
++#define vs_device_perm(v, d, m, p) \
++ ((vs_map_device(current_vx_info(), d, NULL, m) & (p)) == (p))
++
++#else
++
++static inline
++int vs_map_device(struct vx_info *vxi,
++ dev_t device, dev_t *target, umode_t mode)
++{
++ if (target)
++ *target = device;
++ return ~0;
++}
++
++#define vs_device_perm(v, d, m, p) ((p) == (p))
++
++#endif
++
++
++#define vs_map_chrdev(d, t, p) \
++ ((vs_map_device(current_vx_info(), d, t, S_IFCHR) & (p)) == (p))
++#define vs_map_blkdev(d, t, p) \
++ ((vs_map_device(current_vx_info(), d, t, S_IFBLK) & (p)) == (p))
++
++#define vs_chrdev_perm(d, p) \
++ vs_device_perm(current_vx_info(), d, S_IFCHR, p)
++#define vs_blkdev_perm(d, p) \
++ vs_device_perm(current_vx_info(), d, S_IFBLK, p)
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_dlimit.h linux-3.0.9-vs2.3.2.1/include/linux/vs_dlimit.h
+--- linux-3.0.9/include/linux/vs_dlimit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_dlimit.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,215 @@
++#ifndef _VS_DLIMIT_H
++#define _VS_DLIMIT_H
++
++#include <linux/fs.h>
++
++#include "vserver/dlimit.h"
++#include "vserver/base.h"
++#include "vserver/debug.h"
++
++
++#define get_dl_info(i) __get_dl_info(i, __FILE__, __LINE__)
++
++static inline struct dl_info *__get_dl_info(struct dl_info *dli,
++ const char *_file, int _line)
++{
++ if (!dli)
++ return NULL;
++ vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])",
++ dli, dli ? dli->dl_tag : 0,
++ dli ? atomic_read(&dli->dl_usecnt) : 0,
++ _file, _line);
++ atomic_inc(&dli->dl_usecnt);
++ return dli;
++}
++
++
++#define free_dl_info(i) \
++ call_rcu(&(i)->dl_rcu, rcu_free_dl_info)
++
++#define put_dl_info(i) __put_dl_info(i, __FILE__, __LINE__)
++
++static inline void __put_dl_info(struct dl_info *dli,
++ const char *_file, int _line)
++{
++ if (!dli)
++ return;
++ vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])",
++ dli, dli ? dli->dl_tag : 0,
++ dli ? atomic_read(&dli->dl_usecnt) : 0,
++ _file, _line);
++ if (atomic_dec_and_test(&dli->dl_usecnt))
++ free_dl_info(dli);
++}
++
++
++#define __dlimit_char(d) ((d) ? '*' : ' ')
++
++static inline int __dl_alloc_space(struct super_block *sb,
++ tag_t tag, dlsize_t nr, const char *file, int line)
++{
++ struct dl_info *dli = NULL;
++ int ret = 0;
++
++ if (nr == 0)
++ goto out;
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ ret = (dli->dl_space_used + nr > dli->dl_space_total);
++ if (!ret)
++ dli->dl_space_used += nr;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 1),
++ "ALLOC (%p,#%d)%c %lld bytes (%d)",
++ sb, tag, __dlimit_char(dli), (long long)nr,
++ ret, file, line);
++ return ret ? -ENOSPC : 0;
++}
++
++static inline void __dl_free_space(struct super_block *sb,
++ tag_t tag, dlsize_t nr, const char *_file, int _line)
++{
++ struct dl_info *dli = NULL;
++
++ if (nr == 0)
++ goto out;
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_space_used > nr)
++ dli->dl_space_used -= nr;
++ else
++ dli->dl_space_used = 0;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 1),
++ "FREE (%p,#%d)%c %lld bytes",
++ sb, tag, __dlimit_char(dli), (long long)nr,
++ _file, _line);
++}
++
++static inline int __dl_alloc_inode(struct super_block *sb,
++ tag_t tag, const char *_file, int _line)
++{
++ struct dl_info *dli;
++ int ret = 0;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ dli->dl_inodes_used++;
++ ret = (dli->dl_inodes_used > dli->dl_inodes_total);
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 0),
++ "ALLOC (%p,#%d)%c inode (%d)",
++ sb, tag, __dlimit_char(dli), ret, _file, _line);
++ return ret ? -ENOSPC : 0;
++}
++
++static inline void __dl_free_inode(struct super_block *sb,
++ tag_t tag, const char *_file, int _line)
++{
++ struct dl_info *dli;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ goto out;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_inodes_used > 1)
++ dli->dl_inodes_used--;
++ else
++ dli->dl_inodes_used = 0;
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++out:
++ vxlprintk(VXD_CBIT(dlim, 0),
++ "FREE (%p,#%d)%c inode",
++ sb, tag, __dlimit_char(dli), _file, _line);
++}
++
++static inline void __dl_adjust_block(struct super_block *sb, tag_t tag,
++ unsigned long long *free_blocks, unsigned long long *root_blocks,
++ const char *_file, int _line)
++{
++ struct dl_info *dli;
++ uint64_t broot, bfree;
++
++ dli = locate_dl_info(sb, tag);
++ if (!dli)
++ return;
++
++ spin_lock(&dli->dl_lock);
++ broot = (dli->dl_space_total -
++ (dli->dl_space_total >> 10) * dli->dl_nrlmult)
++ >> sb->s_blocksize_bits;
++ bfree = (dli->dl_space_total - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++ spin_unlock(&dli->dl_lock);
++
++ vxlprintk(VXD_CBIT(dlim, 2),
++ "ADJUST: %lld,%lld on %lld,%lld [mult=%d]",
++ (long long)bfree, (long long)broot,
++ *free_blocks, *root_blocks, dli->dl_nrlmult,
++ _file, _line);
++ if (free_blocks) {
++ if (*free_blocks > bfree)
++ *free_blocks = bfree;
++ }
++ if (root_blocks) {
++ if (*root_blocks > broot)
++ *root_blocks = broot;
++ }
++ put_dl_info(dli);
++}
++
++#define dl_prealloc_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_alloc_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_reserve_space(in, bytes) \
++ __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_claim_space(in, bytes) (0)
++
++#define dl_release_space(in, bytes) \
++ __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++#define dl_free_space(in, bytes) \
++ __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
++ __FILE__, __LINE__ )
++
++
++
++#define dl_alloc_inode(in) \
++ __dl_alloc_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
++
++#define dl_free_inode(in) \
++ __dl_free_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
++
++
++#define dl_adjust_block(sb, tag, fb, rb) \
++ __dl_adjust_block(sb, tag, fb, rb, __FILE__, __LINE__ )
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_inet.h linux-3.0.9-vs2.3.2.1/include/linux/vs_inet.h
+--- linux-3.0.9/include/linux/vs_inet.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_inet.h 2011-08-18 17:01:00.000000000 +0200
+@@ -0,0 +1,353 @@
++#ifndef _VS_INET_H
++#define _VS_INET_H
++
++#include "vserver/base.h"
++#include "vserver/network.h"
++#include "vserver/debug.h"
++
++#define IPI_LOOPBACK htonl(INADDR_LOOPBACK)
++
++#define NXAV4(a) NIPQUAD((a)->ip[0]), NIPQUAD((a)->ip[1]), \
++ NIPQUAD((a)->mask), (a)->type
++#define NXAV4_FMT "[" NIPQUAD_FMT "-" NIPQUAD_FMT "/" NIPQUAD_FMT ":%04x]"
++
++#define NIPQUAD(addr) \
++ ((unsigned char *)&addr)[0], \
++ ((unsigned char *)&addr)[1], \
++ ((unsigned char *)&addr)[2], \
++ ((unsigned char *)&addr)[3]
++
++#define NIPQUAD_FMT "%u.%u.%u.%u"
++
++
++static inline
++int v4_addr_match(struct nx_addr_v4 *nxa, __be32 addr, uint16_t tmask)
++{
++ __be32 ip = nxa->ip[0].s_addr;
++ __be32 mask = nxa->mask.s_addr;
++ __be32 bcast = ip | ~mask;
++ int ret = 0;
++
++ switch (nxa->type & tmask) {
++ case NXA_TYPE_MASK:
++ ret = (ip == (addr & mask));
++ break;
++ case NXA_TYPE_ADDR:
++ ret = 3;
++ if (addr == ip)
++ break;
++ /* fall through to broadcast */
++ case NXA_MOD_BCAST:
++ ret = ((tmask & NXA_MOD_BCAST) && (addr == bcast));
++ break;
++ case NXA_TYPE_RANGE:
++ ret = ((nxa->ip[0].s_addr <= addr) &&
++ (nxa->ip[1].s_addr > addr));
++ break;
++ case NXA_TYPE_ANY:
++ ret = 2;
++ break;
++ }
++
++ vxdprintk(VXD_CBIT(net, 0),
++ "v4_addr_match(%p" NXAV4_FMT "," NIPQUAD_FMT ",%04x) = %d",
++ nxa, NXAV4(nxa), NIPQUAD(addr), tmask, ret);
++ return ret;
++}
++
++static inline
++int v4_addr_in_nx_info(struct nx_info *nxi, __be32 addr, uint16_t tmask)
++{
++ struct nx_addr_v4 *nxa;
++ int ret = 1;
++
++ if (!nxi)
++ goto out;
++
++ ret = 2;
++ /* allow 127.0.0.1 when remapping lback */
++ if ((tmask & NXA_LOOPBACK) &&
++ (addr == IPI_LOOPBACK) &&
++ nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ goto out;
++ ret = 3;
++ /* check for lback address */
++ if ((tmask & NXA_MOD_LBACK) &&
++ (nxi->v4_lback.s_addr == addr))
++ goto out;
++ ret = 4;
++ /* check for broadcast address */
++ if ((tmask & NXA_MOD_BCAST) &&
++ (nxi->v4_bcast.s_addr == addr))
++ goto out;
++ ret = 5;
++ /* check for v4 addresses */
++ for (nxa = &nxi->v4; nxa; nxa = nxa->next)
++ if (v4_addr_match(nxa, addr, tmask))
++ goto out;
++ ret = 0;
++out:
++ vxdprintk(VXD_CBIT(net, 0),
++ "v4_addr_in_nx_info(%p[#%u]," NIPQUAD_FMT ",%04x) = %d",
++ nxi, nxi ? nxi->nx_id : 0, NIPQUAD(addr), tmask, ret);
++ return ret;
++}
++
++static inline
++int v4_nx_addr_match(struct nx_addr_v4 *nxa, struct nx_addr_v4 *addr, uint16_t mask)
++{
++ /* FIXME: needs full range checks */
++ return v4_addr_match(nxa, addr->ip[0].s_addr, mask);
++}
++
++static inline
++int v4_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v4 *nxa, uint16_t mask)
++{
++ struct nx_addr_v4 *ptr;
++
++ for (ptr = &nxi->v4; ptr; ptr = ptr->next)
++ if (v4_nx_addr_match(ptr, nxa, mask))
++ return 1;
++ return 0;
++}
++
++#include <net/inet_sock.h>
++
++/*
++ * Check if a given address matches for a socket
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ */
++static inline
++int v4_sock_addr_match (
++ struct nx_info *nxi,
++ struct inet_sock *inet,
++ __be32 addr)
++{
++ __be32 saddr = inet->inet_rcv_saddr;
++ __be32 bcast = nxi ? nxi->v4_bcast.s_addr : INADDR_BROADCAST;
++
++ if (addr && (saddr == addr || bcast == addr))
++ return 1;
++ if (!saddr)
++ return v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND);
++ return 0;
++}
++
++
++/* inet related checks and helpers */
++
++
++struct in_ifaddr;
++struct net_device;
++struct sock;
++
++#ifdef CONFIG_INET
++
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <net/inet_sock.h>
++#include <net/inet_timewait_sock.h>
++
++
++int dev_in_nx_info(struct net_device *, struct nx_info *);
++int v4_dev_in_nx_info(struct net_device *, struct nx_info *);
++int nx_v4_addr_conflict(struct nx_info *, struct nx_info *);
++
++
++/*
++ * check if address is covered by socket
++ *
++ * sk: the socket to check against
++ * addr: the address in question (must be != 0)
++ */
++
++static inline
++int __v4_addr_match_socket(const struct sock *sk, struct nx_addr_v4 *nxa)
++{
++ struct nx_info *nxi = sk->sk_nx_info;
++ __be32 saddr = sk_rcv_saddr(sk);
++
++ vxdprintk(VXD_CBIT(net, 5),
++ "__v4_addr_in_socket(%p," NXAV4_FMT ") %p:" NIPQUAD_FMT " %p;%lx",
++ sk, NXAV4(nxa), nxi, NIPQUAD(saddr), sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ if (saddr) { /* direct address match */
++ return v4_addr_match(nxa, saddr, -1);
++ } else if (nxi) { /* match against nx_info */
++ return v4_nx_addr_in_nx_info(nxi, nxa, -1);
++ } else { /* unrestricted any socket */
++ return 1;
++ }
++}
++
++
++
++static inline
++int nx_dev_visible(struct nx_info *nxi, struct net_device *dev)
++{
++ vxdprintk(VXD_CBIT(net, 1),
++ "nx_dev_visible(%p[#%u],%p " VS_Q("%s") ") %d",
++ nxi, nxi ? nxi->nx_id : 0, dev, dev->name,
++ nxi ? dev_in_nx_info(dev, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (dev_in_nx_info(dev, nxi))
++ return 1;
++ return 0;
++}
++
++
++static inline
++int v4_ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (!ifa)
++ return 0;
++ return v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW);
++}
++
++static inline
++int nx_v4_ifa_visible(struct nx_info *nxi, struct in_ifaddr *ifa)
++{
++ vxdprintk(VXD_CBIT(net, 1), "nx_v4_ifa_visible(%p[#%u],%p) %d",
++ nxi, nxi ? nxi->nx_id : 0, ifa,
++ nxi ? v4_ifa_in_nx_info(ifa, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (v4_ifa_in_nx_info(ifa, nxi))
++ return 1;
++ return 0;
++}
++
++
++struct nx_v4_sock_addr {
++ __be32 saddr; /* Address used for validation */
++ __be32 baddr; /* Address used for socket bind */
++};
++
++static inline
++int v4_map_sock_addr(struct inet_sock *inet, struct sockaddr_in *addr,
++ struct nx_v4_sock_addr *nsa)
++{
++ struct sock *sk = &inet->sk;
++ struct nx_info *nxi = sk->sk_nx_info;
++ __be32 saddr = addr->sin_addr.s_addr;
++ __be32 baddr = saddr;
++
++ vxdprintk(VXD_CBIT(net, 3),
++ "inet_bind(%p)* %p,%p;%lx " NIPQUAD_FMT,
++ sk, sk->sk_nx_info, sk->sk_socket,
++ (sk->sk_socket ? sk->sk_socket->flags : 0),
++ NIPQUAD(saddr));
++
++ if (nxi) {
++ if (saddr == INADDR_ANY) {
++ if (nx_info_flags(nxi, NXF_SINGLE_IP, 0))
++ baddr = nxi->v4.ip[0].s_addr;
++ } else if (saddr == IPI_LOOPBACK) {
++ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ baddr = nxi->v4_lback.s_addr;
++ } else if (!ipv4_is_multicast(saddr) ||
++ !nx_info_ncaps(nxi, NXC_MULTICAST)) {
++ /* normal address bind */
++ if (!v4_addr_in_nx_info(nxi, saddr, NXA_MASK_BIND))
++ return -EADDRNOTAVAIL;
++ }
++ }
++
++ vxdprintk(VXD_CBIT(net, 3),
++ "inet_bind(%p) " NIPQUAD_FMT ", " NIPQUAD_FMT,
++ sk, NIPQUAD(saddr), NIPQUAD(baddr));
++
++ nsa->saddr = saddr;
++ nsa->baddr = baddr;
++ return 0;
++}
++
++static inline
++void v4_set_sock_addr(struct inet_sock *inet, struct nx_v4_sock_addr *nsa)
++{
++ inet->inet_saddr = nsa->baddr;
++ inet->inet_rcv_saddr = nsa->baddr;
++}
++
++
++/*
++ * helper to simplify inet_lookup_listener
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ * saddr: socket address
++ */
++static inline int v4_inet_addr_match (
++ struct nx_info *nxi,
++ __be32 addr,
++ __be32 saddr)
++{
++ if (addr && (saddr == addr))
++ return 1;
++ if (!saddr)
++ return nxi ? v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND) : 1;
++ return 0;
++}
++
++static inline __be32 nx_map_sock_lback(struct nx_info *nxi, __be32 addr)
++{
++ if (nx_info_flags(nxi, NXF_HIDE_LBACK, 0) &&
++ (addr == nxi->v4_lback.s_addr))
++ return IPI_LOOPBACK;
++ return addr;
++}
++
++static inline
++int nx_info_has_v4(struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (NX_IPV4(nxi))
++ return 1;
++ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
++ return 1;
++ return 0;
++}
++
++#else /* CONFIG_INET */
++
++static inline
++int nx_dev_visible(struct nx_info *n, struct net_device *d)
++{
++ return 1;
++}
++
++static inline
++int nx_v4_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
++{
++ return 1;
++}
++
++static inline
++int v4_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
++{
++ return 1;
++}
++
++static inline
++int nx_info_has_v4(struct nx_info *nxi)
++{
++ return 0;
++}
++
++#endif /* CONFIG_INET */
++
++#define current_nx_info_has_v4() \
++ nx_info_has_v4(current_nx_info())
++
++#else
++// #warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_inet6.h linux-3.0.9-vs2.3.2.1/include/linux/vs_inet6.h
+--- linux-3.0.9/include/linux/vs_inet6.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_inet6.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,246 @@
++#ifndef _VS_INET6_H
++#define _VS_INET6_H
++
++#include "vserver/base.h"
++#include "vserver/network.h"
++#include "vserver/debug.h"
++
++#include <net/ipv6.h>
++
++#define NXAV6(a) &(a)->ip, &(a)->mask, (a)->prefix, (a)->type
++#define NXAV6_FMT "[%pI6/%pI6/%d:%04x]"
++
++
++#ifdef CONFIG_IPV6
++
++static inline
++int v6_addr_match(struct nx_addr_v6 *nxa,
++ const struct in6_addr *addr, uint16_t mask)
++{
++ int ret = 0;
++
++ switch (nxa->type & mask) {
++ case NXA_TYPE_MASK:
++ ret = ipv6_masked_addr_cmp(&nxa->ip, &nxa->mask, addr);
++ break;
++ case NXA_TYPE_ADDR:
++ ret = ipv6_addr_equal(&nxa->ip, addr);
++ break;
++ case NXA_TYPE_ANY:
++ ret = 1;
++ break;
++ }
++ vxdprintk(VXD_CBIT(net, 0),
++ "v6_addr_match(%p" NXAV6_FMT ",%pI6,%04x) = %d",
++ nxa, NXAV6(nxa), addr, mask, ret);
++ return ret;
++}
++
++static inline
++int v6_addr_in_nx_info(struct nx_info *nxi,
++ const struct in6_addr *addr, uint16_t mask)
++{
++ struct nx_addr_v6 *nxa;
++ int ret = 1;
++
++ if (!nxi)
++ goto out;
++ for (nxa = &nxi->v6; nxa; nxa = nxa->next)
++ if (v6_addr_match(nxa, addr, mask))
++ goto out;
++ ret = 0;
++out:
++ vxdprintk(VXD_CBIT(net, 0),
++ "v6_addr_in_nx_info(%p[#%u],%pI6,%04x) = %d",
++ nxi, nxi ? nxi->nx_id : 0, addr, mask, ret);
++ return ret;
++}
++
++static inline
++int v6_nx_addr_match(struct nx_addr_v6 *nxa, struct nx_addr_v6 *addr, uint16_t mask)
++{
++ /* FIXME: needs full range checks */
++ return v6_addr_match(nxa, &addr->ip, mask);
++}
++
++static inline
++int v6_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v6 *nxa, uint16_t mask)
++{
++ struct nx_addr_v6 *ptr;
++
++ for (ptr = &nxi->v6; ptr; ptr = ptr->next)
++ if (v6_nx_addr_match(ptr, nxa, mask))
++ return 1;
++ return 0;
++}
++
++
++/*
++ * Check if a given address matches for a socket
++ *
++ * nxi: the socket's nx_info if any
++ * addr: to be verified address
++ */
++static inline
++int v6_sock_addr_match (
++ struct nx_info *nxi,
++ struct inet_sock *inet,
++ struct in6_addr *addr)
++{
++ struct sock *sk = &inet->sk;
++ struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ if (!ipv6_addr_any(addr) &&
++ ipv6_addr_equal(saddr, addr))
++ return 1;
++ if (ipv6_addr_any(saddr))
++ return v6_addr_in_nx_info(nxi, addr, -1);
++ return 0;
++}
++
++/*
++ * check if address is covered by socket
++ *
++ * sk: the socket to check against
++ * addr: the address in question (must be != 0)
++ */
++
++static inline
++int __v6_addr_match_socket(const struct sock *sk, struct nx_addr_v6 *nxa)
++{
++ struct nx_info *nxi = sk->sk_nx_info;
++ struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ vxdprintk(VXD_CBIT(net, 5),
++ "__v6_addr_in_socket(%p," NXAV6_FMT ") %p:%pI6 %p;%lx",
++ sk, NXAV6(nxa), nxi, saddr, sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ if (!ipv6_addr_any(saddr)) { /* direct address match */
++ return v6_addr_match(nxa, saddr, -1);
++ } else if (nxi) { /* match against nx_info */
++ return v6_nx_addr_in_nx_info(nxi, nxa, -1);
++ } else { /* unrestricted any socket */
++ return 1;
++ }
++}
++
++
++/* inet related checks and helpers */
++
++
++struct in_ifaddr;
++struct net_device;
++struct sock;
++
++
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++#include <net/inet_timewait_sock.h>
++
++
++int dev_in_nx_info(struct net_device *, struct nx_info *);
++int v6_dev_in_nx_info(struct net_device *, struct nx_info *);
++int nx_v6_addr_conflict(struct nx_info *, struct nx_info *);
++
++
++
++static inline
++int v6_ifa_in_nx_info(struct inet6_ifaddr *ifa, struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (!ifa)
++ return 0;
++ return v6_addr_in_nx_info(nxi, &ifa->addr, -1);
++}
++
++static inline
++int nx_v6_ifa_visible(struct nx_info *nxi, struct inet6_ifaddr *ifa)
++{
++ vxdprintk(VXD_CBIT(net, 1), "nx_v6_ifa_visible(%p[#%u],%p) %d",
++ nxi, nxi ? nxi->nx_id : 0, ifa,
++ nxi ? v6_ifa_in_nx_info(ifa, nxi) : 0);
++
++ if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
++ return 1;
++ if (v6_ifa_in_nx_info(ifa, nxi))
++ return 1;
++ return 0;
++}
++
++
++struct nx_v6_sock_addr {
++ struct in6_addr saddr; /* Address used for validation */
++ struct in6_addr baddr; /* Address used for socket bind */
++};
++
++static inline
++int v6_map_sock_addr(struct inet_sock *inet, struct sockaddr_in6 *addr,
++ struct nx_v6_sock_addr *nsa)
++{
++ // struct sock *sk = &inet->sk;
++ // struct nx_info *nxi = sk->sk_nx_info;
++ struct in6_addr saddr = addr->sin6_addr;
++ struct in6_addr baddr = saddr;
++
++ nsa->saddr = saddr;
++ nsa->baddr = baddr;
++ return 0;
++}
++
++static inline
++void v6_set_sock_addr(struct inet_sock *inet, struct nx_v6_sock_addr *nsa)
++{
++ // struct sock *sk = &inet->sk;
++ // struct in6_addr *saddr = inet6_rcv_saddr(sk);
++
++ // *saddr = nsa->baddr;
++ // inet->inet_saddr = nsa->baddr;
++}
++
++static inline
++int nx_info_has_v6(struct nx_info *nxi)
++{
++ if (!nxi)
++ return 1;
++ if (NX_IPV6(nxi))
++ return 1;
++ return 0;
++}
++
++#else /* CONFIG_IPV6 */
++
++static inline
++int nx_v6_dev_visible(struct nx_info *n, struct net_device *d)
++{
++ return 1;
++}
++
++
++static inline
++int nx_v6_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
++{
++ return 1;
++}
++
++static inline
++int v6_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
++{
++ return 1;
++}
++
++static inline
++int nx_info_has_v6(struct nx_info *nxi)
++{
++ return 0;
++}
++
++#endif /* CONFIG_IPV6 */
++
++#define current_nx_info_has_v6() \
++ nx_info_has_v6(current_nx_info())
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_limit.h linux-3.0.9-vs2.3.2.1/include/linux/vs_limit.h
+--- linux-3.0.9/include/linux/vs_limit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_limit.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,140 @@
++#ifndef _VS_LIMIT_H
++#define _VS_LIMIT_H
++
++#include "vserver/limit.h"
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/context.h"
++#include "vserver/limit_int.h"
++
++
++#define vx_acc_cres(v, d, p, r) \
++ __vx_acc_cres(v, r, d, p, __FILE__, __LINE__)
++
++#define vx_acc_cres_cond(x, d, p, r) \
++ __vx_acc_cres(((x) == vx_current_xid()) ? current_vx_info() : 0, \
++ r, d, p, __FILE__, __LINE__)
++
++
++#define vx_add_cres(v, a, p, r) \
++ __vx_add_cres(v, r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres(v, a, p, r) vx_add_cres(v, -(a), p, r)
++
++#define vx_add_cres_cond(x, a, p, r) \
++ __vx_add_cres(((x) == vx_current_xid()) ? current_vx_info() : 0, \
++ r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres_cond(x, a, p, r) vx_add_cres_cond(x, -(a), p, r)
++
++
++/* process and file limits */
++
++#define vx_nproc_inc(p) \
++ vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC)
++
++#define vx_nproc_dec(p) \
++ vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC)
++
++#define vx_files_inc(f) \
++ vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE)
++
++#define vx_files_dec(f) \
++ vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE)
++
++#define vx_locks_inc(l) \
++ vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS)
++
++#define vx_locks_dec(l) \
++ vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS)
++
++#define vx_openfd_inc(f) \
++ vx_acc_cres(current_vx_info(), 1, (void *)(long)(f), VLIMIT_OPENFD)
++
++#define vx_openfd_dec(f) \
++ vx_acc_cres(current_vx_info(),-1, (void *)(long)(f), VLIMIT_OPENFD)
++
++
++#define vx_cres_avail(v, n, r) \
++ __vx_cres_avail(v, r, n, __FILE__, __LINE__)
++
++
++#define vx_nproc_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_NPROC)
++
++#define vx_files_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_NOFILE)
++
++#define vx_locks_avail(n) \
++ vx_cres_avail(current_vx_info(), n, RLIMIT_LOCKS)
++
++#define vx_openfd_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_OPENFD)
++
++
++/* dentry limits */
++
++#define vx_dentry_inc(d) do { \
++ if ((d)->d_count == 1) \
++ vx_acc_cres(current_vx_info(), 1, d, VLIMIT_DENTRY); \
++ } while (0)
++
++#define vx_dentry_dec(d) do { \
++ if ((d)->d_count == 0) \
++ vx_acc_cres(current_vx_info(),-1, d, VLIMIT_DENTRY); \
++ } while (0)
++
++#define vx_dentry_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_DENTRY)
++
++
++/* socket limits */
++
++#define vx_sock_inc(s) \
++ vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK)
++
++#define vx_sock_dec(s) \
++ vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK)
++
++#define vx_sock_avail(n) \
++ vx_cres_avail(current_vx_info(), n, VLIMIT_NSOCK)
++
++
++/* ipc resource limits */
++
++#define vx_ipcmsg_add(v, u, a) \
++ vx_add_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_sub(v, u, a) \
++ vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_avail(v, a) \
++ vx_cres_avail(v, a, RLIMIT_MSGQUEUE)
++
++
++#define vx_ipcshm_add(v, k, a) \
++ vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_sub(v, k, a) \
++ vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_avail(v, a) \
++ vx_cres_avail(v, a, VLIMIT_SHMEM)
++
++
++#define vx_semary_inc(a) \
++ vx_acc_cres(current_vx_info(), 1, a, VLIMIT_SEMARY)
++
++#define vx_semary_dec(a) \
++ vx_acc_cres(current_vx_info(), -1, a, VLIMIT_SEMARY)
++
++
++#define vx_nsems_add(a,n) \
++ vx_add_cres(current_vx_info(), n, a, VLIMIT_NSEMS)
++
++#define vx_nsems_sub(a,n) \
++ vx_sub_cres(current_vx_info(), n, a, VLIMIT_NSEMS)
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_memory.h linux-3.0.9-vs2.3.2.1/include/linux/vs_memory.h
+--- linux-3.0.9/include/linux/vs_memory.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_memory.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,58 @@
++#ifndef _VS_MEMORY_H
++#define _VS_MEMORY_H
++
++#include "vserver/limit.h"
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/context.h"
++#include "vserver/limit_int.h"
++
++enum {
++ VXPT_UNKNOWN = 0,
++ VXPT_ANON,
++ VXPT_NONE,
++ VXPT_FILE,
++ VXPT_SWAP,
++ VXPT_WRITE
++};
++
++#if 0
++#define vx_page_fault(mm, vma, type, ret)
++#else
++
++static inline
++void __vx_page_fault(struct mm_struct *mm,
++ struct vm_area_struct *vma, int type, int ret)
++{
++ struct vx_info *vxi = mm->mm_vx_info;
++ int what;
++/*
++ static char *page_type[6] =
++ { "UNKNOWN", "ANON", "NONE", "FILE", "SWAP", "WRITE" };
++ static char *page_what[4] =
++ { "FAULT_OOM", "FAULT_SIGBUS", "FAULT_MINOR", "FAULT_MAJOR" };
++*/
++
++ if (!vxi)
++ return;
++
++ what = (ret & 0x3);
++
++/* printk("[%d] page[%d][%d] %2x %s %s\n", vxi->vx_id,
++ type, what, ret, page_type[type], page_what[what]);
++*/
++ if (ret & VM_FAULT_WRITE)
++ what |= 0x4;
++ atomic_inc(&vxi->cacct.page[type][what]);
++}
++
++#define vx_page_fault(mm, vma, type, ret) __vx_page_fault(mm, vma, type, ret)
++#endif
++
++
++extern unsigned long vx_badness(struct task_struct *task, struct mm_struct *mm);
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_network.h linux-3.0.9-vs2.3.2.1/include/linux/vs_network.h
+--- linux-3.0.9/include/linux/vs_network.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_network.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,169 @@
++#ifndef _NX_VS_NETWORK_H
++#define _NX_VS_NETWORK_H
++
++#include "vserver/context.h"
++#include "vserver/network.h"
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/debug.h"
++
++#include <linux/sched.h>
++
++
++#define get_nx_info(i) __get_nx_info(i, __FILE__, __LINE__)
++
++static inline struct nx_info *__get_nx_info(struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ if (!nxi)
++ return NULL;
++
++ vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ return nxi;
++}
++
++
++extern void free_nx_info(struct nx_info *);
++
++#define put_nx_info(i) __put_nx_info(i, __FILE__, __LINE__)
++
++static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line)
++{
++ if (!nxi)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ if (atomic_dec_and_test(&nxi->nx_usecnt))
++ free_nx_info(nxi);
++}
++
++
++#define init_nx_info(p, i) __init_nx_info(p, i, __FILE__, __LINE__)
++
++static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ if (nxi) {
++ vxlprintk(VXD_CBIT(nid, 3),
++ "init_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ }
++ *nxp = nxi;
++}
++
++
++#define set_nx_info(p, i) __set_nx_info(p, i, __FILE__, __LINE__)
++
++static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++ const char *_file, int _line)
++{
++ struct nx_info *nxo;
++
++ if (!nxi)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ _file, _line);
++
++ atomic_inc(&nxi->nx_usecnt);
++ nxo = xchg(nxp, nxi);
++ BUG_ON(nxo);
++}
++
++#define clr_nx_info(p) __clr_nx_info(p, __FILE__, __LINE__)
++
++static inline void __clr_nx_info(struct nx_info **nxp,
++ const char *_file, int _line)
++{
++ struct nx_info *nxo;
++
++ nxo = xchg(nxp, NULL);
++ if (!nxo)
++ return;
++
++ vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])",
++ nxo, nxo ? nxo->nx_id : 0,
++ nxo ? atomic_read(&nxo->nx_usecnt) : 0,
++ _file, _line);
++
++ if (atomic_dec_and_test(&nxo->nx_usecnt))
++ free_nx_info(nxo);
++}
++
++
++#define claim_nx_info(v, p) __claim_nx_info(v, p, __FILE__, __LINE__)
++
++static inline void __claim_nx_info(struct nx_info *nxi,
++ struct task_struct *task, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi?atomic_read(&nxi->nx_usecnt):0,
++ nxi?atomic_read(&nxi->nx_tasks):0,
++ task, _file, _line);
++
++ atomic_inc(&nxi->nx_tasks);
++}
++
++
++extern void unhash_nx_info(struct nx_info *);
++
++#define release_nx_info(v, p) __release_nx_info(v, p, __FILE__, __LINE__)
++
++static inline void __release_nx_info(struct nx_info *nxi,
++ struct task_struct *task, const char *_file, int _line)
++{
++ vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p",
++ nxi, nxi ? nxi->nx_id : 0,
++ nxi ? atomic_read(&nxi->nx_usecnt) : 0,
++ nxi ? atomic_read(&nxi->nx_tasks) : 0,
++ task, _file, _line);
++
++ might_sleep();
++
++ if (atomic_dec_and_test(&nxi->nx_tasks))
++ unhash_nx_info(nxi);
++}
++
++
++#define task_get_nx_info(i) __task_get_nx_info(i, __FILE__, __LINE__)
++
++static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p,
++ const char *_file, int _line)
++{
++ struct nx_info *nxi;
++
++ task_lock(p);
++ vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)",
++ p, _file, _line);
++ nxi = __get_nx_info(p->nx_info, _file, _line);
++ task_unlock(p);
++ return nxi;
++}
++
++
++static inline void exit_nx_info(struct task_struct *p)
++{
++ if (p->nx_info)
++ release_nx_info(p->nx_info, p);
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_pid.h linux-3.0.9-vs2.3.2.1/include/linux/vs_pid.h
+--- linux-3.0.9/include/linux/vs_pid.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_pid.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,50 @@
++#ifndef _VS_PID_H
++#define _VS_PID_H
++
++#include "vserver/base.h"
++#include "vserver/check.h"
++#include "vserver/context.h"
++#include "vserver/debug.h"
++#include "vserver/pid.h"
++#include <linux/pid_namespace.h>
++
++
++#define VXF_FAKE_INIT (VXF_INFO_INIT | VXF_STATE_INIT)
++
++static inline
++int vx_proc_task_visible(struct task_struct *task)
++{
++ if ((task->pid == 1) &&
++ !vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT))
++ /* show a blend through init */
++ goto visible;
++ if (vx_check(vx_task_xid(task), VS_WATCH | VS_IDENT))
++ goto visible;
++ return 0;
++visible:
++ return 1;
++}
++
++#define find_task_by_real_pid(pid) find_task_by_pid_ns(pid, &init_pid_ns)
++
++
++static inline
++struct task_struct *vx_get_proc_task(struct inode *inode, struct pid *pid)
++{
++ struct task_struct *task = get_pid_task(pid, PIDTYPE_PID);
++
++ if (task && !vx_proc_task_visible(task)) {
++ vxdprintk(VXD_CBIT(misc, 6),
++ "dropping task (get) %p[#%u,%u] for %p[#%u,%u]",
++ task, task->xid, task->pid,
++ current, current->xid, current->pid);
++ put_task_struct(task);
++ task = NULL;
++ }
++ return task;
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_sched.h linux-3.0.9-vs2.3.2.1/include/linux/vs_sched.h
+--- linux-3.0.9/include/linux/vs_sched.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_sched.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,40 @@
++#ifndef _VS_SCHED_H
++#define _VS_SCHED_H
++
++#include "vserver/base.h"
++#include "vserver/context.h"
++#include "vserver/sched.h"
++
++
++#define MAX_PRIO_BIAS 20
++#define MIN_PRIO_BIAS -20
++
++static inline
++int vx_adjust_prio(struct task_struct *p, int prio, int max_user)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi)
++ prio += vx_cpu(vxi, sched_pc).prio_bias;
++ return prio;
++}
++
++static inline void vx_account_user(struct vx_info *vxi,
++ cputime_t cputime, int nice)
++{
++ if (!vxi)
++ return;
++ vx_cpu(vxi, sched_pc).user_ticks += cputime;
++}
++
++static inline void vx_account_system(struct vx_info *vxi,
++ cputime_t cputime, int idle)
++{
++ if (!vxi)
++ return;
++ vx_cpu(vxi, sched_pc).sys_ticks += cputime;
++}
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_socket.h linux-3.0.9-vs2.3.2.1/include/linux/vs_socket.h
+--- linux-3.0.9/include/linux/vs_socket.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_socket.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,67 @@
++#ifndef _VS_SOCKET_H
++#define _VS_SOCKET_H
++
++#include "vserver/debug.h"
++#include "vserver/base.h"
++#include "vserver/cacct.h"
++#include "vserver/context.h"
++#include "vserver/tag.h"
++
++
++/* socket accounting */
++
++#include <linux/socket.h>
++
++static inline int vx_sock_type(int family)
++{
++ switch (family) {
++ case PF_UNSPEC:
++ return VXA_SOCK_UNSPEC;
++ case PF_UNIX:
++ return VXA_SOCK_UNIX;
++ case PF_INET:
++ return VXA_SOCK_INET;
++ case PF_INET6:
++ return VXA_SOCK_INET6;
++ case PF_PACKET:
++ return VXA_SOCK_PACKET;
++ default:
++ return VXA_SOCK_OTHER;
++ }
++}
++
++#define vx_acc_sock(v, f, p, s) \
++ __vx_acc_sock(v, f, p, s, __FILE__, __LINE__)
++
++static inline void __vx_acc_sock(struct vx_info *vxi,
++ int family, int pos, int size, char *file, int line)
++{
++ if (vxi) {
++ int type = vx_sock_type(family);
++
++ atomic_long_inc(&vxi->cacct.sock[type][pos].count);
++ atomic_long_add(size, &vxi->cacct.sock[type][pos].total);
++ }
++}
++
++#define vx_sock_recv(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, s)
++#define vx_sock_send(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, s)
++#define vx_sock_fail(sk, s) \
++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, s)
++
++
++#define sock_vx_init(s) do { \
++ (s)->sk_xid = 0; \
++ (s)->sk_vx_info = NULL; \
++ } while (0)
++
++#define sock_nx_init(s) do { \
++ (s)->sk_nid = 0; \
++ (s)->sk_nx_info = NULL; \
++ } while (0)
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_tag.h linux-3.0.9-vs2.3.2.1/include/linux/vs_tag.h
+--- linux-3.0.9/include/linux/vs_tag.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_tag.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,47 @@
++#ifndef _VS_TAG_H
++#define _VS_TAG_H
++
++#include <linux/vserver/tag.h>
++
++/* check conditions */
++
++#define DX_ADMIN 0x0001
++#define DX_WATCH 0x0002
++#define DX_HOSTID 0x0008
++
++#define DX_IDENT 0x0010
++
++#define DX_ARG_MASK 0x0010
++
++
++#define dx_task_tag(t) ((t)->tag)
++
++#define dx_current_tag() dx_task_tag(current)
++
++#define dx_check(c, m) __dx_check(dx_current_tag(), c, m)
++
++#define dx_weak_check(c, m) ((m) ? dx_check(c, m) : 1)
++
++
++/*
++ * check current context for ADMIN/WATCH and
++ * optionally against supplied argument
++ */
++static inline int __dx_check(tag_t cid, tag_t id, unsigned int mode)
++{
++ if (mode & DX_ARG_MASK) {
++ if ((mode & DX_IDENT) && (id == cid))
++ return 1;
++ }
++ return (((mode & DX_ADMIN) && (cid == 0)) ||
++ ((mode & DX_WATCH) && (cid == 1)) ||
++ ((mode & DX_HOSTID) && (id == 0)));
++}
++
++struct inode;
++int dx_permission(const struct inode *inode, int mask);
++
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vs_time.h linux-3.0.9-vs2.3.2.1/include/linux/vs_time.h
+--- linux-3.0.9/include/linux/vs_time.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vs_time.h 2011-06-13 14:57:45.000000000 +0200
+@@ -0,0 +1,19 @@
++#ifndef _VS_TIME_H
++#define _VS_TIME_H
++
++
++/* time faking stuff */
++
++#ifdef CONFIG_VSERVER_VTIME
++
++extern void vx_adjust_timespec(struct timespec *ts);
++extern int vx_settimeofday(const struct timespec *ts);
++
++#else
++#define vx_adjust_timespec(t) do { } while (0)
++#define vx_settimeofday(t) do_settimeofday(t)
++#endif
++
++#else
++#warning duplicate inclusion
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/Kbuild linux-3.0.9-vs2.3.2.1/include/linux/vserver/Kbuild
+--- linux-3.0.9/include/linux/vserver/Kbuild 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/Kbuild 2011-08-08 18:02:46.000000000 +0200
+@@ -0,0 +1,8 @@
++
++header-y += context_cmd.h network_cmd.h space_cmd.h \
++ cacct_cmd.h cvirt_cmd.h limit_cmd.h dlimit_cmd.h \
++ inode_cmd.h tag_cmd.h sched_cmd.h signal_cmd.h \
++ debug_cmd.h device_cmd.h
++
++header-y += switch.h network.h monitor.h inode.h device.h
++
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/base.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/base.h
+--- linux-3.0.9/include/linux/vserver/base.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/base.h 2011-08-01 18:26:07.000000000 +0200
+@@ -0,0 +1,178 @@
++#ifndef _VX_BASE_H
++#define _VX_BASE_H
++
++
++/* context state changes */
++
++enum {
++ VSC_STARTUP = 1,
++ VSC_SHUTDOWN,
++
++ VSC_NETUP,
++ VSC_NETDOWN,
++};
++
++
++
++#define vx_task_xid(t) ((t)->xid)
++
++#define vx_current_xid() vx_task_xid(current)
++
++#define current_vx_info() (current->vx_info)
++
++
++#define nx_task_nid(t) ((t)->nid)
++
++#define nx_current_nid() nx_task_nid(current)
++
++#define current_nx_info() (current->nx_info)
++
++
++/* generic flag merging */
++
++#define vs_check_flags(v, m, f) (((v) & (m)) ^ (f))
++
++#define vs_mask_flags(v, f, m) (((v) & ~(m)) | ((f) & (m)))
++
++#define vs_mask_mask(v, f, m) (((v) & ~(m)) | ((v) & (f) & (m)))
++
++#define vs_check_bit(v, n) ((v) & (1LL << (n)))
++
++
++/* context flags */
++
++#define __vx_flags(v) ((v) ? (v)->vx_flags : 0)
++
++#define vx_current_flags() __vx_flags(current_vx_info())
++
++#define vx_info_flags(v, m, f) \
++ vs_check_flags(__vx_flags(v), m, f)
++
++#define task_vx_flags(t, m, f) \
++ ((t) && vx_info_flags((t)->vx_info, m, f))
++
++#define vx_flags(m, f) vx_info_flags(current_vx_info(), m, f)
++
++
++/* context caps */
++
++#define __vx_ccaps(v) ((v) ? (v)->vx_ccaps : 0)
++
++#define vx_current_ccaps() __vx_ccaps(current_vx_info())
++
++#define vx_info_ccaps(v, c) (__vx_ccaps(v) & (c))
++
++#define vx_ccaps(c) vx_info_ccaps(current_vx_info(), (c))
++
++
++
++/* network flags */
++
++#define __nx_flags(n) ((n) ? (n)->nx_flags : 0)
++
++#define nx_current_flags() __nx_flags(current_nx_info())
++
++#define nx_info_flags(n, m, f) \
++ vs_check_flags(__nx_flags(n), m, f)
++
++#define task_nx_flags(t, m, f) \
++ ((t) && nx_info_flags((t)->nx_info, m, f))
++
++#define nx_flags(m, f) nx_info_flags(current_nx_info(), m, f)
++
++
++/* network caps */
++
++#define __nx_ncaps(n) ((n) ? (n)->nx_ncaps : 0)
++
++#define nx_current_ncaps() __nx_ncaps(current_nx_info())
++
++#define nx_info_ncaps(n, c) (__nx_ncaps(n) & (c))
++
++#define nx_ncaps(c) nx_info_ncaps(current_nx_info(), c)
++
++
++/* context mask capabilities */
++
++#define __vx_mcaps(v) ((v) ? (v)->vx_ccaps >> 32UL : ~0 )
++
++#define vx_info_mcaps(v, c) (__vx_mcaps(v) & (c))
++
++#define vx_mcaps(c) vx_info_mcaps(current_vx_info(), c)
++
++
++/* context bcap mask */
++
++#define __vx_bcaps(v) ((v)->vx_bcaps)
++
++#define vx_current_bcaps() __vx_bcaps(current_vx_info())
++
++
++/* mask given bcaps */
++
++#define vx_info_mbcaps(v, c) ((v) ? cap_intersect(__vx_bcaps(v), c) : c)
++
++#define vx_mbcaps(c) vx_info_mbcaps(current_vx_info(), c)
++
++
++/* masked cap_bset */
++
++#define vx_info_cap_bset(v) vx_info_mbcaps(v, current->cap_bset)
++
++#define vx_current_cap_bset() vx_info_cap_bset(current_vx_info())
++
++#if 0
++#define vx_info_mbcap(v, b) \
++ (!vx_info_flags(v, VXF_STATE_SETUP, 0) ? \
++ vx_info_bcaps(v, b) : (b))
++
++#define task_vx_mbcap(t, b) \
++ vx_info_mbcap((t)->vx_info, (t)->b)
++
++#define vx_mbcap(b) task_vx_mbcap(current, b)
++#endif
++
++#define vx_cap_raised(v, c, f) cap_raised(vx_info_mbcaps(v, c), f)
++
++#define vx_capable(b, c) (capable(b) || \
++ (cap_raised(current_cap(), b) && vx_ccaps(c)))
++
++#define vx_ns_capable(n, b, c) (ns_capable(n, b) || \
++ (cap_raised(current_cap(), b) && vx_ccaps(c)))
++
++#define nx_capable(b, c) (capable(b) || \
++ (cap_raised(current_cap(), b) && nx_ncaps(c)))
++
++#define vx_task_initpid(t, n) \
++ ((t)->vx_info && \
++ ((t)->vx_info->vx_initpid == (n)))
++
++#define vx_current_initpid(n) vx_task_initpid(current, n)
++
++
++/* context unshare mask */
++
++#define __vx_umask(v) ((v)->vx_umask)
++
++#define vx_current_umask() __vx_umask(current_vx_info())
++
++#define vx_can_unshare(b, f) (capable(b) || \
++ (cap_raised(current_cap(), b) && \
++ !((f) & ~vx_current_umask())))
++
++
++#define __vx_wmask(v) ((v)->vx_wmask)
++
++#define vx_current_wmask() __vx_wmask(current_vx_info())
++
++
++#define __vx_state(v) ((v) ? ((v)->vx_state) : 0)
++
++#define vx_info_state(v, m) (__vx_state(v) & (m))
++
++
++#define __nx_state(n) ((n) ? ((n)->nx_state) : 0)
++
++#define nx_info_state(n, m) (__nx_state(n) & (m))
++
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cacct.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct.h
+--- linux-3.0.9/include/linux/vserver/cacct.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,15 @@
++#ifndef _VX_CACCT_H
++#define _VX_CACCT_H
++
++
++enum sock_acc_field {
++ VXA_SOCK_UNSPEC = 0,
++ VXA_SOCK_UNIX,
++ VXA_SOCK_INET,
++ VXA_SOCK_INET6,
++ VXA_SOCK_PACKET,
++ VXA_SOCK_OTHER,
++ VXA_SOCK_SIZE /* array size */
++};
++
++#endif /* _VX_CACCT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cacct_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_cmd.h
+--- linux-3.0.9/include/linux/vserver/cacct_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,23 @@
++#ifndef _VX_CACCT_CMD_H
++#define _VX_CACCT_CMD_H
++
++
++/* virtual host info name commands */
++
++#define VCMD_sock_stat VC_CMD(VSTAT, 5, 0)
++
++struct vcmd_sock_stat_v0 {
++ uint32_t field;
++ uint32_t count[3];
++ uint64_t total[3];
++};
++
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_sock_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CACCT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cacct_def.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_def.h
+--- linux-3.0.9/include/linux/vserver/cacct_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_def.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,43 @@
++#ifndef _VX_CACCT_DEF_H
++#define _VX_CACCT_DEF_H
++
++#include <asm/atomic.h>
++#include <linux/vserver/cacct.h>
++
++
++struct _vx_sock_acc {
++ atomic_long_t count;
++ atomic_long_t total;
++};
++
++/* context sub struct */
++
++struct _vx_cacct {
++ struct _vx_sock_acc sock[VXA_SOCK_SIZE][3];
++ atomic_t slab[8];
++ atomic_t page[6][8];
++};
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_cacct(struct _vx_cacct *cacct)
++{
++ int i, j;
++
++ printk("\t_vx_cacct:");
++ for (i = 0; i < 6; i++) {
++ struct _vx_sock_acc *ptr = cacct->sock[i];
++
++ printk("\t [%d] =", i);
++ for (j = 0; j < 3; j++) {
++ printk(" [%d] = %8lu, %8lu", j,
++ atomic_long_read(&ptr[j].count),
++ atomic_long_read(&ptr[j].total));
++ }
++ printk("\n");
++ }
++}
++
++#endif
++
++#endif /* _VX_CACCT_DEF_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cacct_int.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_int.h
+--- linux-3.0.9/include/linux/vserver/cacct_int.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cacct_int.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,21 @@
++#ifndef _VX_CACCT_INT_H
++#define _VX_CACCT_INT_H
++
++
++#ifdef __KERNEL__
++
++static inline
++unsigned long vx_sock_count(struct _vx_cacct *cacct, int type, int pos)
++{
++ return atomic_long_read(&cacct->sock[type][pos].count);
++}
++
++
++static inline
++unsigned long vx_sock_total(struct _vx_cacct *cacct, int type, int pos)
++{
++ return atomic_long_read(&cacct->sock[type][pos].total);
++}
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CACCT_INT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/check.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/check.h
+--- linux-3.0.9/include/linux/vserver/check.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/check.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,89 @@
++#ifndef _VS_CHECK_H
++#define _VS_CHECK_H
++
++
++#define MAX_S_CONTEXT 65535 /* Arbitrary limit */
++
++#ifdef CONFIG_VSERVER_DYNAMIC_IDS
++#define MIN_D_CONTEXT 49152 /* dynamic contexts start here */
++#else
++#define MIN_D_CONTEXT 65536
++#endif
++
++/* check conditions */
++
++#define VS_ADMIN 0x0001
++#define VS_WATCH 0x0002
++#define VS_HIDE 0x0004
++#define VS_HOSTID 0x0008
++
++#define VS_IDENT 0x0010
++#define VS_EQUIV 0x0020
++#define VS_PARENT 0x0040
++#define VS_CHILD 0x0080
++
++#define VS_ARG_MASK 0x00F0
++
++#define VS_DYNAMIC 0x0100
++#define VS_STATIC 0x0200
++
++#define VS_ATR_MASK 0x0F00
++
++#ifdef CONFIG_VSERVER_PRIVACY
++#define VS_ADMIN_P (0)
++#define VS_WATCH_P (0)
++#else
++#define VS_ADMIN_P VS_ADMIN
++#define VS_WATCH_P VS_WATCH
++#endif
++
++#define VS_HARDIRQ 0x1000
++#define VS_SOFTIRQ 0x2000
++#define VS_IRQ 0x4000
++
++#define VS_IRQ_MASK 0xF000
++
++#include <linux/hardirq.h>
++
++/*
++ * check current context for ADMIN/WATCH and
++ * optionally against supplied argument
++ */
++static inline int __vs_check(int cid, int id, unsigned int mode)
++{
++ if (mode & VS_ARG_MASK) {
++ if ((mode & VS_IDENT) && (id == cid))
++ return 1;
++ }
++ if (mode & VS_ATR_MASK) {
++ if ((mode & VS_DYNAMIC) &&
++ (id >= MIN_D_CONTEXT) &&
++ (id <= MAX_S_CONTEXT))
++ return 1;
++ if ((mode & VS_STATIC) &&
++ (id > 1) && (id < MIN_D_CONTEXT))
++ return 1;
++ }
++ if (mode & VS_IRQ_MASK) {
++ if ((mode & VS_IRQ) && unlikely(in_interrupt()))
++ return 1;
++ if ((mode & VS_HARDIRQ) && unlikely(in_irq()))
++ return 1;
++ if ((mode & VS_SOFTIRQ) && unlikely(in_softirq()))
++ return 1;
++ }
++ return (((mode & VS_ADMIN) && (cid == 0)) ||
++ ((mode & VS_WATCH) && (cid == 1)) ||
++ ((mode & VS_HOSTID) && (id == 0)));
++}
++
++#define vx_check(c, m) __vs_check(vx_current_xid(), c, (m) | VS_IRQ)
++
++#define vx_weak_check(c, m) ((m) ? vx_check(c, m) : 1)
++
++
++#define nx_check(c, m) __vs_check(nx_current_nid(), c, m)
++
++#define nx_weak_check(c, m) ((m) ? nx_check(c, m) : 1)
++
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/context.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/context.h
+--- linux-3.0.9/include/linux/vserver/context.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/context.h 2011-10-27 13:59:29.000000000 +0200
+@@ -0,0 +1,188 @@
++#ifndef _VX_CONTEXT_H
++#define _VX_CONTEXT_H
++
++#include <linux/types.h>
++#include <linux/capability.h>
++
++
++/* context flags */
++
++#define VXF_INFO_SCHED 0x00000002
++#define VXF_INFO_NPROC 0x00000004
++#define VXF_INFO_PRIVATE 0x00000008
++
++#define VXF_INFO_INIT 0x00000010
++#define VXF_INFO_HIDE 0x00000020
++#define VXF_INFO_ULIMIT 0x00000040
++#define VXF_INFO_NSPACE 0x00000080
++
++#define VXF_SCHED_HARD 0x00000100
++#define VXF_SCHED_PRIO 0x00000200
++#define VXF_SCHED_PAUSE 0x00000400
++
++#define VXF_VIRT_MEM 0x00010000
++#define VXF_VIRT_UPTIME 0x00020000
++#define VXF_VIRT_CPU 0x00040000
++#define VXF_VIRT_LOAD 0x00080000
++#define VXF_VIRT_TIME 0x00100000
++
++#define VXF_HIDE_MOUNT 0x01000000
++/* was VXF_HIDE_NETIF 0x02000000 */
++#define VXF_HIDE_VINFO 0x04000000
++
++#define VXF_STATE_SETUP (1ULL << 32)
++#define VXF_STATE_INIT (1ULL << 33)
++#define VXF_STATE_ADMIN (1ULL << 34)
++
++#define VXF_SC_HELPER (1ULL << 36)
++#define VXF_REBOOT_KILL (1ULL << 37)
++#define VXF_PERSISTENT (1ULL << 38)
++
++#define VXF_FORK_RSS (1ULL << 48)
++#define VXF_PROLIFIC (1ULL << 49)
++
++#define VXF_IGNEG_NICE (1ULL << 52)
++
++#define VXF_ONE_TIME (0x0007ULL << 32)
++
++#define VXF_INIT_SET (VXF_STATE_SETUP | VXF_STATE_INIT | VXF_STATE_ADMIN)
++
++
++/* context migration */
++
++#define VXM_SET_INIT 0x00000001
++#define VXM_SET_REAPER 0x00000002
++
++/* context caps */
++
++#define VXC_SET_UTSNAME 0x00000001
++#define VXC_SET_RLIMIT 0x00000002
++#define VXC_FS_SECURITY 0x00000004
++#define VXC_FS_TRUSTED 0x00000008
++#define VXC_TIOCSTI 0x00000010
++
++/* was VXC_RAW_ICMP 0x00000100 */
++#define VXC_SYSLOG 0x00001000
++#define VXC_OOM_ADJUST 0x00002000
++#define VXC_AUDIT_CONTROL 0x00004000
++
++#define VXC_SECURE_MOUNT 0x00010000
++#define VXC_SECURE_REMOUNT 0x00020000
++#define VXC_BINARY_MOUNT 0x00040000
++
++#define VXC_QUOTA_CTL 0x00100000
++#define VXC_ADMIN_MAPPER 0x00200000
++#define VXC_ADMIN_CLOOP 0x00400000
++
++#define VXC_KTHREAD 0x01000000
++#define VXC_NAMESPACE 0x02000000
++
++
++#ifdef __KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++
++#include "limit_def.h"
++#include "sched_def.h"
++#include "cvirt_def.h"
++#include "cacct_def.h"
++#include "device_def.h"
++
++#define VX_SPACES 2
++
++struct _vx_info_pc {
++ struct _vx_sched_pc sched_pc;
++ struct _vx_cvirt_pc cvirt_pc;
++};
++
++struct _vx_space {
++ unsigned long vx_nsmask; /* assignment mask */
++ struct nsproxy *vx_nsproxy; /* private namespaces */
++ struct fs_struct *vx_fs; /* private namespace fs */
++ const struct cred *vx_cred; /* task credentials */
++};
++
++struct vx_info {
++ struct hlist_node vx_hlist; /* linked list of contexts */
++ xid_t vx_id; /* context id */
++ atomic_t vx_usecnt; /* usage count */
++ atomic_t vx_tasks; /* tasks count */
++ struct vx_info *vx_parent; /* parent context */
++ int vx_state; /* context state */
++
++ struct _vx_space space[VX_SPACES]; /* namespace store */
++
++ uint64_t vx_flags; /* context flags */
++ uint64_t vx_ccaps; /* context caps (vserver) */
++ uint64_t vx_umask; /* unshare mask (guest) */
++ uint64_t vx_wmask; /* warn mask (guest) */
++ kernel_cap_t vx_bcaps; /* bounding caps (system) */
++
++ struct task_struct *vx_reaper; /* guest reaper process */
++ pid_t vx_initpid; /* PID of guest init */
++ int64_t vx_badness_bias; /* OOM points bias */
++
++ struct _vx_limit limit; /* vserver limits */
++ struct _vx_sched sched; /* vserver scheduler */
++ struct _vx_cvirt cvirt; /* virtual/bias stuff */
++ struct _vx_cacct cacct; /* context accounting */
++
++ struct _vx_device dmap; /* default device map targets */
++
++#ifndef CONFIG_SMP
++ struct _vx_info_pc info_pc; /* per cpu data */
++#else
++ struct _vx_info_pc *ptr_pc; /* per cpu array */
++#endif
++
++ wait_queue_head_t vx_wait; /* context exit waitqueue */
++ int reboot_cmd; /* last sys_reboot() cmd */
++ int exit_code; /* last process exit code */
++
++ char vx_name[65]; /* vserver name */
++};
++
++#ifndef CONFIG_SMP
++#define vx_ptr_pc(vxi) (&(vxi)->info_pc)
++#define vx_per_cpu(vxi, v, id) vx_ptr_pc(vxi)->v
++#else
++#define vx_ptr_pc(vxi) ((vxi)->ptr_pc)
++#define vx_per_cpu(vxi, v, id) per_cpu_ptr(vx_ptr_pc(vxi), id)->v
++#endif
++
++#define vx_cpu(vxi, v) vx_per_cpu(vxi, v, smp_processor_id())
++
++
++struct vx_info_save {
++ struct vx_info *vxi;
++ xid_t xid;
++};
++
++
++/* status flags */
++
++#define VXS_HASHED 0x0001
++#define VXS_PAUSED 0x0010
++#define VXS_SHUTDOWN 0x0100
++#define VXS_HELPER 0x1000
++#define VXS_RELEASED 0x8000
++
++
++extern void claim_vx_info(struct vx_info *, struct task_struct *);
++extern void release_vx_info(struct vx_info *, struct task_struct *);
++
++extern struct vx_info *lookup_vx_info(int);
++extern struct vx_info *lookup_or_create_vx_info(int);
++
++extern int get_xid_list(int, unsigned int *, int);
++extern int xid_is_hashed(xid_t);
++
++extern int vx_migrate_task(struct task_struct *, struct vx_info *, int);
++
++extern long vs_state_change(struct vx_info *, unsigned int);
++
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/context_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/context_cmd.h
+--- linux-3.0.9/include/linux/vserver/context_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/context_cmd.h 2011-08-01 18:25:07.000000000 +0200
+@@ -0,0 +1,162 @@
++#ifndef _VX_CONTEXT_CMD_H
++#define _VX_CONTEXT_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_xid VC_CMD(VINFO, 1, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_xid(uint32_t);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_vx_info VC_CMD(VINFO, 5, 0)
++
++struct vcmd_vx_info_v0 {
++ uint32_t xid;
++ uint32_t initpid;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_vx_info(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_ctx_stat VC_CMD(VSTAT, 0, 0)
++
++struct vcmd_ctx_stat_v0 {
++ uint32_t usecnt;
++ uint32_t tasks;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_ctx_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++/* context commands */
++
++#define VCMD_ctx_create_v0 VC_CMD(VPROC, 1, 0)
++#define VCMD_ctx_create VC_CMD(VPROC, 1, 1)
++
++struct vcmd_ctx_create {
++ uint64_t flagword;
++};
++
++#define VCMD_ctx_migrate_v0 VC_CMD(PROCMIG, 1, 0)
++#define VCMD_ctx_migrate VC_CMD(PROCMIG, 1, 1)
++
++struct vcmd_ctx_migrate {
++ uint64_t flagword;
++};
++
++#ifdef __KERNEL__
++extern int vc_ctx_create(uint32_t, void __user *);
++extern int vc_ctx_migrate(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_cflags VC_CMD(FLAGS, 1, 0)
++#define VCMD_set_cflags VC_CMD(FLAGS, 2, 0)
++
++struct vcmd_ctx_flags_v0 {
++ uint64_t flagword;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_cflags(struct vx_info *, void __user *);
++extern int vc_set_cflags(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* context caps commands */
++
++#define VCMD_get_ccaps VC_CMD(FLAGS, 3, 1)
++#define VCMD_set_ccaps VC_CMD(FLAGS, 4, 1)
++
++struct vcmd_ctx_caps_v1 {
++ uint64_t ccaps;
++ uint64_t cmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_ccaps(struct vx_info *, void __user *);
++extern int vc_set_ccaps(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* bcaps commands */
++
++#define VCMD_get_bcaps VC_CMD(FLAGS, 9, 0)
++#define VCMD_set_bcaps VC_CMD(FLAGS, 10, 0)
++
++struct vcmd_bcaps {
++ uint64_t bcaps;
++ uint64_t bmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_bcaps(struct vx_info *, void __user *);
++extern int vc_set_bcaps(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* umask commands */
++
++#define VCMD_get_umask VC_CMD(FLAGS, 13, 0)
++#define VCMD_set_umask VC_CMD(FLAGS, 14, 0)
++
++struct vcmd_umask {
++ uint64_t umask;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_umask(struct vx_info *, void __user *);
++extern int vc_set_umask(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* wmask commands */
++
++#define VCMD_get_wmask VC_CMD(FLAGS, 15, 0)
++#define VCMD_set_wmask VC_CMD(FLAGS, 16, 0)
++
++struct vcmd_wmask {
++ uint64_t wmask;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_wmask(struct vx_info *, void __user *);
++extern int vc_set_wmask(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* OOM badness */
++
++#define VCMD_get_badness VC_CMD(MEMCTRL, 5, 0)
++#define VCMD_set_badness VC_CMD(MEMCTRL, 6, 0)
++
++struct vcmd_badness_v0 {
++ int64_t bias;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_badness(struct vx_info *, void __user *);
++extern int vc_set_badness(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cvirt.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt.h
+--- linux-3.0.9/include/linux/vserver/cvirt.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,20 @@
++#ifndef _VX_CVIRT_H
++#define _VX_CVIRT_H
++
++
++#ifdef __KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++int vx_do_syslog(int, char __user *, int);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CVIRT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cvirt_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt_cmd.h
+--- linux-3.0.9/include/linux/vserver/cvirt_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,53 @@
++#ifndef _VX_CVIRT_CMD_H
++#define _VX_CVIRT_CMD_H
++
++
++/* virtual host info name commands */
++
++#define VCMD_set_vhi_name VC_CMD(VHOST, 1, 0)
++#define VCMD_get_vhi_name VC_CMD(VHOST, 2, 0)
++
++struct vcmd_vhi_name_v0 {
++ uint32_t field;
++ char name[65];
++};
++
++
++enum vhi_name_field {
++ VHIN_CONTEXT = 0,
++ VHIN_SYSNAME,
++ VHIN_NODENAME,
++ VHIN_RELEASE,
++ VHIN_VERSION,
++ VHIN_MACHINE,
++ VHIN_DOMAINNAME,
++};
++
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_vhi_name(struct vx_info *, void __user *);
++extern int vc_get_vhi_name(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_virt_stat VC_CMD(VSTAT, 3, 0)
++
++struct vcmd_virt_stat_v0 {
++ uint64_t offset;
++ uint64_t uptime;
++ uint32_t nr_threads;
++ uint32_t nr_running;
++ uint32_t nr_uninterruptible;
++ uint32_t nr_onhold;
++ uint32_t nr_forks;
++ uint32_t load[3];
++};
++
++#ifdef __KERNEL__
++extern int vc_virt_stat(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CVIRT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/cvirt_def.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt_def.h
+--- linux-3.0.9/include/linux/vserver/cvirt_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/cvirt_def.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,80 @@
++#ifndef _VX_CVIRT_DEF_H
++#define _VX_CVIRT_DEF_H
++
++#include <linux/jiffies.h>
++#include <linux/spinlock.h>
++#include <linux/wait.h>
++#include <linux/time.h>
++#include <asm/atomic.h>
++
++
++struct _vx_usage_stat {
++ uint64_t user;
++ uint64_t nice;
++ uint64_t system;
++ uint64_t softirq;
++ uint64_t irq;
++ uint64_t idle;
++ uint64_t iowait;
++};
++
++struct _vx_syslog {
++ wait_queue_head_t log_wait;
++ spinlock_t logbuf_lock; /* lock for the log buffer */
++
++ unsigned long log_start; /* next char to be read by syslog() */
++ unsigned long con_start; /* next char to be sent to consoles */
++ unsigned long log_end; /* most-recently-written-char + 1 */
++ unsigned long logged_chars; /* #chars since last read+clear operation */
++
++ char log_buf[1024];
++};
++
++
++/* context sub struct */
++
++struct _vx_cvirt {
++ atomic_t nr_threads; /* number of current threads */
++ atomic_t nr_running; /* number of running threads */
++ atomic_t nr_uninterruptible; /* number of uninterruptible threads */
++
++ atomic_t nr_onhold; /* processes on hold */
++ uint32_t onhold_last; /* jiffies when put on hold */
++
++ struct timespec bias_ts; /* time offset to the host */
++ struct timespec bias_idle;
++ struct timespec bias_uptime; /* context creation point */
++ uint64_t bias_clock; /* offset in clock_t */
++
++ spinlock_t load_lock; /* lock for the load averages */
++ atomic_t load_updates; /* nr of load updates done so far */
++ uint32_t load_last; /* last time load was calculated */
++ uint32_t load[3]; /* load averages 1,5,15 */
++
++ atomic_t total_forks; /* number of forks so far */
++
++ struct _vx_syslog syslog;
++};
++
++struct _vx_cvirt_pc {
++ struct _vx_usage_stat cpustat;
++};
++
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_cvirt(struct _vx_cvirt *cvirt)
++{
++ printk("\t_vx_cvirt:\n");
++ printk("\t threads: %4d, %4d, %4d, %4d\n",
++ atomic_read(&cvirt->nr_threads),
++ atomic_read(&cvirt->nr_running),
++ atomic_read(&cvirt->nr_uninterruptible),
++ atomic_read(&cvirt->nr_onhold));
++ /* add rest here */
++ printk("\t total_forks = %d\n", atomic_read(&cvirt->total_forks));
++}
++
++#endif
++
++#endif /* _VX_CVIRT_DEF_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/debug.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/debug.h
+--- linux-3.0.9/include/linux/vserver/debug.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/debug.h 2011-11-17 21:25:04.000000000 +0100
+@@ -0,0 +1,145 @@
++#ifndef _VX_DEBUG_H
++#define _VX_DEBUG_H
++
++
++#define VXD_CBIT(n, m) (vs_debug_ ## n & (1 << (m)))
++#define VXD_CMIN(n, m) (vs_debug_ ## n > (m))
++#define VXD_MASK(n, m) (vs_debug_ ## n & (m))
++
++#define VXD_DEV(d) (d), (d)->bd_inode->i_ino, \
++ imajor((d)->bd_inode), iminor((d)->bd_inode)
++#define VXF_DEV "%p[%lu,%d:%d]"
++
++#if defined(CONFIG_QUOTES_UTF8)
++#define VS_Q_LQM "\xc2\xbb"
++#define VS_Q_RQM "\xc2\xab"
++#elif defined(CONFIG_QUOTES_ASCII)
++#define VS_Q_LQM "\x27"
++#define VS_Q_RQM "\x27"
++#else
++#define VS_Q_LQM "\xbb"
++#define VS_Q_RQM "\xab"
++#endif
++
++#define VS_Q(f) VS_Q_LQM f VS_Q_RQM
++
++
++#define vxd_path(p) \
++ ({ static char _buffer[PATH_MAX]; \
++ d_path(p, _buffer, sizeof(_buffer)); })
++
++#define vxd_cond_path(n) \
++ ((n) ? vxd_path(&(n)->path) : "<null>" )
++
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++extern unsigned int vs_debug_switch;
++extern unsigned int vs_debug_xid;
++extern unsigned int vs_debug_nid;
++extern unsigned int vs_debug_tag;
++extern unsigned int vs_debug_net;
++extern unsigned int vs_debug_limit;
++extern unsigned int vs_debug_cres;
++extern unsigned int vs_debug_dlim;
++extern unsigned int vs_debug_quota;
++extern unsigned int vs_debug_cvirt;
++extern unsigned int vs_debug_space;
++extern unsigned int vs_debug_perm;
++extern unsigned int vs_debug_misc;
++
++
++#define VX_LOGLEVEL "vxD: "
++#define VX_PROC_FMT "%p: "
++#define VX_PROCESS current
++
++#define vxdprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL VX_PROC_FMT f "\n", \
++ VX_PROCESS , ##x); \
++ } while (0)
++
++#define vxlprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL f " @%s:%d\n", x); \
++ } while (0)
++
++#define vxfprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \
++ } while (0)
++
++
++struct vx_info;
++
++void dump_vx_info(struct vx_info *, int);
++void dump_vx_info_inactive(int);
++
++#else /* CONFIG_VSERVER_DEBUG */
++
++#define vs_debug_switch 0
++#define vs_debug_xid 0
++#define vs_debug_nid 0
++#define vs_debug_tag 0
++#define vs_debug_net 0
++#define vs_debug_limit 0
++#define vs_debug_cres 0
++#define vs_debug_dlim 0
++#define vs_debug_quota 0
++#define vs_debug_cvirt 0
++#define vs_debug_space 0
++#define vs_debug_perm 0
++#define vs_debug_misc 0
++
++#define vxdprintk(x...) do { } while (0)
++#define vxlprintk(x...) do { } while (0)
++#define vxfprintk(x...) do { } while (0)
++
++#endif /* CONFIG_VSERVER_DEBUG */
++
++
++#ifdef CONFIG_VSERVER_WARN
++
++#define VX_WARNLEVEL KERN_WARNING "vxW: "
++#define VX_WARN_TASK "[" VS_Q("%s") ",%u:#%u|%u|%u] "
++#define VX_WARN_XID "[xid #%u] "
++#define VX_WARN_NID "[nid #%u] "
++#define VX_WARN_TAG "[tag #%u] "
++
++#define vxwprintk(c, f, x...) \
++ do { \
++ if (c) \
++ printk(VX_WARNLEVEL f "\n", ##x); \
++ } while (0)
++
++#else /* CONFIG_VSERVER_WARN */
++
++#define vxwprintk(x...) do { } while (0)
++
++#endif /* CONFIG_VSERVER_WARN */
++
++#define vxwprintk_task(c, f, x...) \
++ vxwprintk(c, VX_WARN_TASK f, \
++ current->comm, current->pid, \
++ current->xid, current->nid, current->tag, ##x)
++#define vxwprintk_xid(c, f, x...) \
++ vxwprintk(c, VX_WARN_XID f, current->xid, x)
++#define vxwprintk_nid(c, f, x...) \
++ vxwprintk(c, VX_WARN_NID f, current->nid, x)
++#define vxwprintk_tag(c, f, x...) \
++ vxwprintk(c, VX_WARN_TAG f, current->tag, x)
++
++#ifdef CONFIG_VSERVER_DEBUG
++#define vxd_assert_lock(l) assert_spin_locked(l)
++#define vxd_assert(c, f, x...) vxlprintk(!(c), \
++ "assertion [" f "] failed.", ##x, __FILE__, __LINE__)
++#else
++#define vxd_assert_lock(l) do { } while (0)
++#define vxd_assert(c, f, x...) do { } while (0)
++#endif
++
++
++#endif /* _VX_DEBUG_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/debug_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/debug_cmd.h
+--- linux-3.0.9/include/linux/vserver/debug_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/debug_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,58 @@
++#ifndef _VX_DEBUG_CMD_H
++#define _VX_DEBUG_CMD_H
++
++
++/* debug commands */
++
++#define VCMD_dump_history VC_CMD(DEBUG, 1, 0)
++
++#define VCMD_read_history VC_CMD(DEBUG, 5, 0)
++#define VCMD_read_monitor VC_CMD(DEBUG, 6, 0)
++
++struct vcmd_read_history_v0 {
++ uint32_t index;
++ uint32_t count;
++ char __user *data;
++};
++
++struct vcmd_read_monitor_v0 {
++ uint32_t index;
++ uint32_t count;
++ char __user *data;
++};
++
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_read_history_v0_x32 {
++ uint32_t index;
++ uint32_t count;
++ compat_uptr_t data_ptr;
++};
++
++struct vcmd_read_monitor_v0_x32 {
++ uint32_t index;
++ uint32_t count;
++ compat_uptr_t data_ptr;
++};
++
++#endif /* CONFIG_COMPAT */
++
++extern int vc_dump_history(uint32_t);
++
++extern int vc_read_history(uint32_t, void __user *);
++extern int vc_read_monitor(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_read_history_x32(uint32_t, void __user *);
++extern int vc_read_monitor_x32(uint32_t, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DEBUG_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/device.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/device.h
+--- linux-3.0.9/include/linux/vserver/device.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/device.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,15 @@
++#ifndef _VX_DEVICE_H
++#define _VX_DEVICE_H
++
++
++#define DATTR_CREATE 0x00000001
++#define DATTR_OPEN 0x00000002
++
++#define DATTR_REMAP 0x00000010
++
++#define DATTR_MASK 0x00000013
++
++
++#else /* _VX_DEVICE_H */
++#warning duplicate inclusion
++#endif /* _VX_DEVICE_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/device_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/device_cmd.h
+--- linux-3.0.9/include/linux/vserver/device_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/device_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,44 @@
++#ifndef _VX_DEVICE_CMD_H
++#define _VX_DEVICE_CMD_H
++
++
++/* device vserver commands */
++
++#define VCMD_set_mapping VC_CMD(DEVICE, 1, 0)
++#define VCMD_unset_mapping VC_CMD(DEVICE, 2, 0)
++
++struct vcmd_set_mapping_v0 {
++ const char __user *device;
++ const char __user *target;
++ uint32_t flags;
++};
++
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_set_mapping_v0_x32 {
++ compat_uptr_t device_ptr;
++ compat_uptr_t target_ptr;
++ uint32_t flags;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_set_mapping(struct vx_info *, void __user *);
++extern int vc_unset_mapping(struct vx_info *, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_set_mapping_x32(struct vx_info *, void __user *);
++extern int vc_unset_mapping_x32(struct vx_info *, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DEVICE_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/device_def.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/device_def.h
+--- linux-3.0.9/include/linux/vserver/device_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/device_def.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,17 @@
++#ifndef _VX_DEVICE_DEF_H
++#define _VX_DEVICE_DEF_H
++
++#include <linux/types.h>
++
++struct vx_dmap_target {
++ dev_t target;
++ uint32_t flags;
++};
++
++struct _vx_device {
++#ifdef CONFIG_VSERVER_DEVICE
++ struct vx_dmap_target targets[2];
++#endif
++};
++
++#endif /* _VX_DEVICE_DEF_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/dlimit.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/dlimit.h
+--- linux-3.0.9/include/linux/vserver/dlimit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/dlimit.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,54 @@
++#ifndef _VX_DLIMIT_H
++#define _VX_DLIMIT_H
++
++#include "switch.h"
++
++
++#ifdef __KERNEL__
++
++/* keep in sync with CDLIM_INFINITY */
++
++#define DLIM_INFINITY (~0ULL)
++
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++
++struct super_block;
++
++struct dl_info {
++ struct hlist_node dl_hlist; /* linked list of contexts */
++ struct rcu_head dl_rcu; /* the rcu head */
++ tag_t dl_tag; /* context tag */
++ atomic_t dl_usecnt; /* usage count */
++ atomic_t dl_refcnt; /* reference count */
++
++ struct super_block *dl_sb; /* associated superblock */
++
++ spinlock_t dl_lock; /* protect the values */
++
++ unsigned long long dl_space_used; /* used space in bytes */
++ unsigned long long dl_space_total; /* maximum space in bytes */
++ unsigned long dl_inodes_used; /* used inodes */
++ unsigned long dl_inodes_total; /* maximum inodes */
++
++ unsigned int dl_nrlmult; /* non root limit mult */
++};
++
++struct rcu_head;
++
++extern void rcu_free_dl_info(struct rcu_head *);
++extern void unhash_dl_info(struct dl_info *);
++
++extern struct dl_info *locate_dl_info(struct super_block *, tag_t);
++
++
++struct kstatfs;
++
++extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
++
++typedef uint64_t dlsize_t;
++
++#endif /* __KERNEL__ */
++#else /* _VX_DLIMIT_H */
++#warning duplicate inclusion
++#endif /* _VX_DLIMIT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/dlimit_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/dlimit_cmd.h
+--- linux-3.0.9/include/linux/vserver/dlimit_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/dlimit_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,109 @@
++#ifndef _VX_DLIMIT_CMD_H
++#define _VX_DLIMIT_CMD_H
++
++
++/* dlimit vserver commands */
++
++#define VCMD_add_dlimit VC_CMD(DLIMIT, 1, 0)
++#define VCMD_rem_dlimit VC_CMD(DLIMIT, 2, 0)
++
++#define VCMD_set_dlimit VC_CMD(DLIMIT, 5, 0)
++#define VCMD_get_dlimit VC_CMD(DLIMIT, 6, 0)
++
++struct vcmd_ctx_dlimit_base_v0 {
++ const char __user *name;
++ uint32_t flags;
++};
++
++struct vcmd_ctx_dlimit_v0 {
++ const char __user *name;
++ uint32_t space_used; /* used space in kbytes */
++ uint32_t space_total; /* maximum space in kbytes */
++ uint32_t inodes_used; /* used inodes */
++ uint32_t inodes_total; /* maximum inodes */
++ uint32_t reserved; /* reserved for root in % */
++ uint32_t flags;
++};
++
++#define CDLIM_UNSET ((uint32_t)0UL)
++#define CDLIM_INFINITY ((uint32_t)~0UL)
++#define CDLIM_KEEP ((uint32_t)~1UL)
++
++#define DLIME_UNIT 0
++#define DLIME_KILO 1
++#define DLIME_MEGA 2
++#define DLIME_GIGA 3
++
++#define DLIMF_SHIFT 0x10
++
++#define DLIMS_USED 0
++#define DLIMS_TOTAL 2
++
++static inline
++uint64_t dlimit_space_32to64(uint32_t val, uint32_t flags, int shift)
++{
++ int exp = (flags & DLIMF_SHIFT) ?
++ (flags >> shift) & DLIME_GIGA : DLIME_KILO;
++ return ((uint64_t)val) << (10 * exp);
++}
++
++static inline
++uint32_t dlimit_space_64to32(uint64_t val, uint32_t *flags, int shift)
++{
++ int exp = 0;
++
++ if (*flags & DLIMF_SHIFT) {
++ while (val > (1LL << 32) && (exp < 3)) {
++ val >>= 10;
++ exp++;
++ }
++ *flags &= ~(DLIME_GIGA << shift);
++ *flags |= exp << shift;
++ } else
++ val >>= 10;
++ return val;
++}
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_ctx_dlimit_base_v0_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t flags;
++};
++
++struct vcmd_ctx_dlimit_v0_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t space_used; /* used space in kbytes */
++ uint32_t space_total; /* maximum space in kbytes */
++ uint32_t inodes_used; /* used inodes */
++ uint32_t inodes_total; /* maximum inodes */
++ uint32_t reserved; /* reserved for root in % */
++ uint32_t flags;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_add_dlimit(uint32_t, void __user *);
++extern int vc_rem_dlimit(uint32_t, void __user *);
++
++extern int vc_set_dlimit(uint32_t, void __user *);
++extern int vc_get_dlimit(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_add_dlimit_x32(uint32_t, void __user *);
++extern int vc_rem_dlimit_x32(uint32_t, void __user *);
++
++extern int vc_set_dlimit_x32(uint32_t, void __user *);
++extern int vc_get_dlimit_x32(uint32_t, void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_DLIMIT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/global.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/global.h
+--- linux-3.0.9/include/linux/vserver/global.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/global.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,19 @@
++#ifndef _VX_GLOBAL_H
++#define _VX_GLOBAL_H
++
++
++extern atomic_t vx_global_ctotal;
++extern atomic_t vx_global_cactive;
++
++extern atomic_t nx_global_ctotal;
++extern atomic_t nx_global_cactive;
++
++extern atomic_t vs_global_nsproxy;
++extern atomic_t vs_global_fs;
++extern atomic_t vs_global_mnt_ns;
++extern atomic_t vs_global_uts_ns;
++extern atomic_t vs_global_user_ns;
++extern atomic_t vs_global_pid_ns;
++
++
++#endif /* _VX_GLOBAL_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/history.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/history.h
+--- linux-3.0.9/include/linux/vserver/history.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/history.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,197 @@
++#ifndef _VX_HISTORY_H
++#define _VX_HISTORY_H
++
++
++enum {
++ VXH_UNUSED = 0,
++ VXH_THROW_OOPS = 1,
++
++ VXH_GET_VX_INFO,
++ VXH_PUT_VX_INFO,
++ VXH_INIT_VX_INFO,
++ VXH_SET_VX_INFO,
++ VXH_CLR_VX_INFO,
++ VXH_CLAIM_VX_INFO,
++ VXH_RELEASE_VX_INFO,
++ VXH_ALLOC_VX_INFO,
++ VXH_DEALLOC_VX_INFO,
++ VXH_HASH_VX_INFO,
++ VXH_UNHASH_VX_INFO,
++ VXH_LOC_VX_INFO,
++ VXH_LOOKUP_VX_INFO,
++ VXH_CREATE_VX_INFO,
++};
++
++struct _vxhe_vxi {
++ struct vx_info *ptr;
++ unsigned xid;
++ unsigned usecnt;
++ unsigned tasks;
++};
++
++struct _vxhe_set_clr {
++ void *data;
++};
++
++struct _vxhe_loc_lookup {
++ unsigned arg;
++};
++
++struct _vx_hist_entry {
++ void *loc;
++ unsigned short seq;
++ unsigned short type;
++ struct _vxhe_vxi vxi;
++ union {
++ struct _vxhe_set_clr sc;
++ struct _vxhe_loc_lookup ll;
++ };
++};
++
++#ifdef CONFIG_VSERVER_HISTORY
++
++extern unsigned volatile int vxh_active;
++
++struct _vx_hist_entry *vxh_advance(void *loc);
++
++
++static inline
++void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi)
++{
++ entry->vxi.ptr = vxi;
++ if (vxi) {
++ entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt);
++ entry->vxi.tasks = atomic_read(&vxi->vx_tasks);
++ entry->vxi.xid = vxi->vx_id;
++ }
++}
++
++
++#define __HERE__ current_text_addr()
++
++#define __VXH_BODY(__type, __data, __here) \
++ struct _vx_hist_entry *entry; \
++ \
++ preempt_disable(); \
++ entry = vxh_advance(__here); \
++ __data; \
++ entry->type = __type; \
++ preempt_enable();
++
++
++ /* pass vxi only */
++
++#define __VXH_SMPL \
++ __vxh_copy_vxi(entry, vxi)
++
++static inline
++void __vxh_smpl(struct vx_info *vxi, int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_SMPL, __here)
++}
++
++ /* pass vxi and data (void *) */
++
++#define __VXH_DATA \
++ __vxh_copy_vxi(entry, vxi); \
++ entry->sc.data = data
++
++static inline
++void __vxh_data(struct vx_info *vxi, void *data,
++ int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_DATA, __here)
++}
++
++ /* pass vxi and arg (long) */
++
++#define __VXH_LONG \
++ __vxh_copy_vxi(entry, vxi); \
++ entry->ll.arg = arg
++
++static inline
++void __vxh_long(struct vx_info *vxi, long arg,
++ int __type, void *__here)
++{
++ __VXH_BODY(__type, __VXH_LONG, __here)
++}
++
++
++static inline
++void __vxh_throw_oops(void *__here)
++{
++ __VXH_BODY(VXH_THROW_OOPS, {}, __here);
++ /* prevent further acquisition */
++ vxh_active = 0;
++}
++
++
++#define vxh_throw_oops() __vxh_throw_oops(__HERE__);
++
++#define __vxh_get_vx_info(v, h) __vxh_smpl(v, VXH_GET_VX_INFO, h);
++#define __vxh_put_vx_info(v, h) __vxh_smpl(v, VXH_PUT_VX_INFO, h);
++
++#define __vxh_init_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_INIT_VX_INFO, h);
++#define __vxh_set_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_SET_VX_INFO, h);
++#define __vxh_clr_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_CLR_VX_INFO, h);
++
++#define __vxh_claim_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_CLAIM_VX_INFO, h);
++#define __vxh_release_vx_info(v, d, h) \
++ __vxh_data(v, d, VXH_RELEASE_VX_INFO, h);
++
++#define vxh_alloc_vx_info(v) \
++ __vxh_smpl(v, VXH_ALLOC_VX_INFO, __HERE__);
++#define vxh_dealloc_vx_info(v) \
++ __vxh_smpl(v, VXH_DEALLOC_VX_INFO, __HERE__);
++
++#define vxh_hash_vx_info(v) \
++ __vxh_smpl(v, VXH_HASH_VX_INFO, __HERE__);
++#define vxh_unhash_vx_info(v) \
++ __vxh_smpl(v, VXH_UNHASH_VX_INFO, __HERE__);
++
++#define vxh_loc_vx_info(v, l) \
++ __vxh_long(v, l, VXH_LOC_VX_INFO, __HERE__);
++#define vxh_lookup_vx_info(v, l) \
++ __vxh_long(v, l, VXH_LOOKUP_VX_INFO, __HERE__);
++#define vxh_create_vx_info(v, l) \
++ __vxh_long(v, l, VXH_CREATE_VX_INFO, __HERE__);
++
++extern void vxh_dump_history(void);
++
++
++#else /* CONFIG_VSERVER_HISTORY */
++
++#define __HERE__ 0
++
++#define vxh_throw_oops() do { } while (0)
++
++#define __vxh_get_vx_info(v, h) do { } while (0)
++#define __vxh_put_vx_info(v, h) do { } while (0)
++
++#define __vxh_init_vx_info(v, d, h) do { } while (0)
++#define __vxh_set_vx_info(v, d, h) do { } while (0)
++#define __vxh_clr_vx_info(v, d, h) do { } while (0)
++
++#define __vxh_claim_vx_info(v, d, h) do { } while (0)
++#define __vxh_release_vx_info(v, d, h) do { } while (0)
++
++#define vxh_alloc_vx_info(v) do { } while (0)
++#define vxh_dealloc_vx_info(v) do { } while (0)
++
++#define vxh_hash_vx_info(v) do { } while (0)
++#define vxh_unhash_vx_info(v) do { } while (0)
++
++#define vxh_loc_vx_info(v, l) do { } while (0)
++#define vxh_lookup_vx_info(v, l) do { } while (0)
++#define vxh_create_vx_info(v, l) do { } while (0)
++
++#define vxh_dump_history() do { } while (0)
++
++
++#endif /* CONFIG_VSERVER_HISTORY */
++
++#endif /* _VX_HISTORY_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/inode.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/inode.h
+--- linux-3.0.9/include/linux/vserver/inode.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/inode.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,39 @@
++#ifndef _VX_INODE_H
++#define _VX_INODE_H
++
++
++#define IATTR_TAG 0x01000000
++
++#define IATTR_ADMIN 0x00000001
++#define IATTR_WATCH 0x00000002
++#define IATTR_HIDE 0x00000004
++#define IATTR_FLAGS 0x00000007
++
++#define IATTR_BARRIER 0x00010000
++#define IATTR_IXUNLINK 0x00020000
++#define IATTR_IMMUTABLE 0x00040000
++#define IATTR_COW 0x00080000
++
++#ifdef __KERNEL__
++
++
++#ifdef CONFIG_VSERVER_PROC_SECURE
++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN | IATTR_HIDE )
++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN )
++#else
++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN )
++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN )
++#endif
++
++#define vx_hide_check(c, m) (((m) & IATTR_HIDE) ? vx_check(c, m) : 1)
++
++#endif /* __KERNEL__ */
++
++/* inode ioctls */
++
++#define FIOC_GETXFLG _IOR('x', 5, long)
++#define FIOC_SETXFLG _IOW('x', 6, long)
++
++#else /* _VX_INODE_H */
++#warning duplicate inclusion
++#endif /* _VX_INODE_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/inode_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/inode_cmd.h
+--- linux-3.0.9/include/linux/vserver/inode_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/inode_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,59 @@
++#ifndef _VX_INODE_CMD_H
++#define _VX_INODE_CMD_H
++
++
++/* inode vserver commands */
++
++#define VCMD_get_iattr VC_CMD(INODE, 1, 1)
++#define VCMD_set_iattr VC_CMD(INODE, 2, 1)
++
++#define VCMD_fget_iattr VC_CMD(INODE, 3, 0)
++#define VCMD_fset_iattr VC_CMD(INODE, 4, 0)
++
++struct vcmd_ctx_iattr_v1 {
++ const char __user *name;
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++struct vcmd_ctx_fiattr_v0 {
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++
++#ifdef __KERNEL__
++
++
++#ifdef CONFIG_COMPAT
++
++#include <asm/compat.h>
++
++struct vcmd_ctx_iattr_v1_x32 {
++ compat_uptr_t name_ptr;
++ uint32_t tag;
++ uint32_t flags;
++ uint32_t mask;
++};
++
++#endif /* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_get_iattr(void __user *);
++extern int vc_set_iattr(void __user *);
++
++extern int vc_fget_iattr(uint32_t, void __user *);
++extern int vc_fset_iattr(uint32_t, void __user *);
++
++#ifdef CONFIG_COMPAT
++
++extern int vc_get_iattr_x32(void __user *);
++extern int vc_set_iattr_x32(void __user *);
++
++#endif /* CONFIG_COMPAT */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_INODE_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/limit.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit.h
+--- linux-3.0.9/include/linux/vserver/limit.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,71 @@
++#ifndef _VX_LIMIT_H
++#define _VX_LIMIT_H
++
++#define VLIMIT_NSOCK 16
++#define VLIMIT_OPENFD 17
++#define VLIMIT_ANON 18
++#define VLIMIT_SHMEM 19
++#define VLIMIT_SEMARY 20
++#define VLIMIT_NSEMS 21
++#define VLIMIT_DENTRY 22
++#define VLIMIT_MAPPED 23
++
++
++#ifdef __KERNEL__
++
++#define VLIM_NOCHECK ((1L << VLIMIT_DENTRY) | (1L << RLIMIT_RSS))
++
++/* keep in sync with CRLIM_INFINITY */
++
++#define VLIM_INFINITY (~0ULL)
++
++#include <asm/atomic.h>
++#include <asm/resource.h>
++
++#ifndef RLIM_INFINITY
++#warning RLIM_INFINITY is undefined
++#endif
++
++#define __rlim_val(l, r, v) ((l)->res[r].v)
++
++#define __rlim_soft(l, r) __rlim_val(l, r, soft)
++#define __rlim_hard(l, r) __rlim_val(l, r, hard)
++
++#define __rlim_rcur(l, r) __rlim_val(l, r, rcur)
++#define __rlim_rmin(l, r) __rlim_val(l, r, rmin)
++#define __rlim_rmax(l, r) __rlim_val(l, r, rmax)
++
++#define __rlim_lhit(l, r) __rlim_val(l, r, lhit)
++#define __rlim_hit(l, r) atomic_inc(&__rlim_lhit(l, r))
++
++typedef atomic_long_t rlim_atomic_t;
++typedef unsigned long rlim_t;
++
++#define __rlim_get(l, r) atomic_long_read(&__rlim_rcur(l, r))
++#define __rlim_set(l, r, v) atomic_long_set(&__rlim_rcur(l, r), v)
++#define __rlim_inc(l, r) atomic_long_inc(&__rlim_rcur(l, r))
++#define __rlim_dec(l, r) atomic_long_dec(&__rlim_rcur(l, r))
++#define __rlim_add(l, r, v) atomic_long_add(v, &__rlim_rcur(l, r))
++#define __rlim_sub(l, r, v) atomic_long_sub(v, &__rlim_rcur(l, r))
++
++
++#if (RLIM_INFINITY == VLIM_INFINITY)
++#define VX_VLIM(r) ((long long)(long)(r))
++#define VX_RLIM(v) ((rlim_t)(v))
++#else
++#define VX_VLIM(r) (((r) == RLIM_INFINITY) \
++ ? VLIM_INFINITY : (long long)(r))
++#define VX_RLIM(v) (((v) == VLIM_INFINITY) \
++ ? RLIM_INFINITY : (rlim_t)(v))
++#endif
++
++struct sysinfo;
++
++void vx_vsi_meminfo(struct sysinfo *);
++void vx_vsi_swapinfo(struct sysinfo *);
++long vx_vsi_cached(struct sysinfo *);
++
++#define NUM_LIMITS 24
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/limit_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_cmd.h
+--- linux-3.0.9/include/linux/vserver/limit_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,71 @@
++#ifndef _VX_LIMIT_CMD_H
++#define _VX_LIMIT_CMD_H
++
++
++/* rlimit vserver commands */
++
++#define VCMD_get_rlimit VC_CMD(RLIMIT, 1, 0)
++#define VCMD_set_rlimit VC_CMD(RLIMIT, 2, 0)
++#define VCMD_get_rlimit_mask VC_CMD(RLIMIT, 3, 0)
++#define VCMD_reset_hits VC_CMD(RLIMIT, 7, 0)
++#define VCMD_reset_minmax VC_CMD(RLIMIT, 9, 0)
++
++struct vcmd_ctx_rlimit_v0 {
++ uint32_t id;
++ uint64_t minimum;
++ uint64_t softlimit;
++ uint64_t maximum;
++};
++
++struct vcmd_ctx_rlimit_mask_v0 {
++ uint32_t minimum;
++ uint32_t softlimit;
++ uint32_t maximum;
++};
++
++#define VCMD_rlimit_stat VC_CMD(VSTAT, 1, 0)
++
++struct vcmd_rlimit_stat_v0 {
++ uint32_t id;
++ uint32_t hits;
++ uint64_t value;
++ uint64_t minimum;
++ uint64_t maximum;
++};
++
++#define CRLIM_UNSET (0ULL)
++#define CRLIM_INFINITY (~0ULL)
++#define CRLIM_KEEP (~1ULL)
++
++#ifdef __KERNEL__
++
++#ifdef CONFIG_IA32_EMULATION
++
++struct vcmd_ctx_rlimit_v0_x32 {
++ uint32_t id;
++ uint64_t minimum;
++ uint64_t softlimit;
++ uint64_t maximum;
++} __attribute__ ((packed));
++
++#endif /* CONFIG_IA32_EMULATION */
++
++#include <linux/compiler.h>
++
++extern int vc_get_rlimit_mask(uint32_t, void __user *);
++extern int vc_get_rlimit(struct vx_info *, void __user *);
++extern int vc_set_rlimit(struct vx_info *, void __user *);
++extern int vc_reset_hits(struct vx_info *, void __user *);
++extern int vc_reset_minmax(struct vx_info *, void __user *);
++
++extern int vc_rlimit_stat(struct vx_info *, void __user *);
++
++#ifdef CONFIG_IA32_EMULATION
++
++extern int vc_get_rlimit_x32(struct vx_info *, void __user *);
++extern int vc_set_rlimit_x32(struct vx_info *, void __user *);
++
++#endif /* CONFIG_IA32_EMULATION */
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/limit_def.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_def.h
+--- linux-3.0.9/include/linux/vserver/limit_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_def.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,47 @@
++#ifndef _VX_LIMIT_DEF_H
++#define _VX_LIMIT_DEF_H
++
++#include <asm/atomic.h>
++#include <asm/resource.h>
++
++#include "limit.h"
++
++
++struct _vx_res_limit {
++ rlim_t soft; /* Context soft limit */
++ rlim_t hard; /* Context hard limit */
++
++ rlim_atomic_t rcur; /* Current value */
++ rlim_t rmin; /* Context minimum */
++ rlim_t rmax; /* Context maximum */
++
++ atomic_t lhit; /* Limit hits */
++};
++
++/* context sub struct */
++
++struct _vx_limit {
++ struct _vx_res_limit res[NUM_LIMITS];
++};
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_limit(struct _vx_limit *limit)
++{
++ int i;
++
++ printk("\t_vx_limit:");
++ for (i = 0; i < NUM_LIMITS; i++) {
++ printk("\t [%2d] = %8lu %8lu/%8lu, %8ld/%8ld, %8d\n",
++ i, (unsigned long)__rlim_get(limit, i),
++ (unsigned long)__rlim_rmin(limit, i),
++ (unsigned long)__rlim_rmax(limit, i),
++ (long)__rlim_soft(limit, i),
++ (long)__rlim_hard(limit, i),
++ atomic_read(&__rlim_lhit(limit, i)));
++ }
++}
++
++#endif
++
++#endif /* _VX_LIMIT_DEF_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/limit_int.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_int.h
+--- linux-3.0.9/include/linux/vserver/limit_int.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/limit_int.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,198 @@
++#ifndef _VX_LIMIT_INT_H
++#define _VX_LIMIT_INT_H
++
++#include "context.h"
++
++#ifdef __KERNEL__
++
++#define VXD_RCRES_COND(r) VXD_CBIT(cres, r)
++#define VXD_RLIMIT_COND(r) VXD_CBIT(limit, r)
++
++extern const char *vlimit_name[NUM_LIMITS];
++
++static inline void __vx_acc_cres(struct vx_info *vxi,
++ int res, int dir, void *_data, char *_file, int _line)
++{
++ if (VXD_RCRES_COND(res))
++ vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5ld%s (%p)",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ (dir > 0) ? "++" : "--", _data, _file, _line);
++ if (!vxi)
++ return;
++
++ if (dir > 0)
++ __rlim_inc(&vxi->limit, res);
++ else
++ __rlim_dec(&vxi->limit, res);
++}
++
++static inline void __vx_add_cres(struct vx_info *vxi,
++ int res, int amount, void *_data, char *_file, int _line)
++{
++ if (VXD_RCRES_COND(res))
++ vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5ld += %5d (%p)",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ amount, _data, _file, _line);
++ if (amount == 0)
++ return;
++ if (!vxi)
++ return;
++ __rlim_add(&vxi->limit, res, amount);
++}
++
++static inline
++int __vx_cres_adjust_max(struct _vx_limit *limit, int res, rlim_t value)
++{
++ int cond = (value > __rlim_rmax(limit, res));
++
++ if (cond)
++ __rlim_rmax(limit, res) = value;
++ return cond;
++}
++
++static inline
++int __vx_cres_adjust_min(struct _vx_limit *limit, int res, rlim_t value)
++{
++ int cond = (value < __rlim_rmin(limit, res));
++
++ if (cond)
++ __rlim_rmin(limit, res) = value;
++ return cond;
++}
++
++static inline
++void __vx_cres_fixup(struct _vx_limit *limit, int res, rlim_t value)
++{
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++}
++
++
++/* return values:
++ +1 ... no limit hit
++ -1 ... over soft limit
++ 0 ... over hard limit */
++
++static inline int __vx_cres_avail(struct vx_info *vxi,
++ int res, int num, char *_file, int _line)
++{
++ struct _vx_limit *limit;
++ rlim_t value;
++
++ if (VXD_RLIMIT_COND(res))
++ vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld/%5ld > %5ld + %5d",
++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++ (vxi ? (long)__rlim_soft(&vxi->limit, res) : -1),
++ (vxi ? (long)__rlim_hard(&vxi->limit, res) : -1),
++ (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
++ num, _file, _line);
++ if (!vxi)
++ return 1;
++
++ limit = &vxi->limit;
++ value = __rlim_get(limit, res);
++
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++
++ if (num == 0)
++ return 1;
++
++ if (__rlim_soft(limit, res) == RLIM_INFINITY)
++ return -1;
++ if (value + num <= __rlim_soft(limit, res))
++ return -1;
++
++ if (__rlim_hard(limit, res) == RLIM_INFINITY)
++ return 1;
++ if (value + num <= __rlim_hard(limit, res))
++ return 1;
++
++ __rlim_hit(limit, res);
++ return 0;
++}
++
++
++static const int VLA_RSS[] = { RLIMIT_RSS, VLIMIT_ANON, VLIMIT_MAPPED, 0 };
++
++static inline
++rlim_t __vx_cres_array_sum(struct _vx_limit *limit, const int *array)
++{
++ rlim_t value, sum = 0;
++ int res;
++
++ while ((res = *array++)) {
++ value = __rlim_get(limit, res);
++ __vx_cres_fixup(limit, res, value);
++ sum += value;
++ }
++ return sum;
++}
++
++static inline
++rlim_t __vx_cres_array_fixup(struct _vx_limit *limit, const int *array)
++{
++ rlim_t value = __vx_cres_array_sum(limit, array + 1);
++ int res = *array;
++
++ if (value == __rlim_get(limit, res))
++ return value;
++
++ __rlim_set(limit, res, value);
++ /* now adjust min/max */
++ if (!__vx_cres_adjust_max(limit, res, value))
++ __vx_cres_adjust_min(limit, res, value);
++
++ return value;
++}
++
++static inline int __vx_cres_array_avail(struct vx_info *vxi,
++ const int *array, int num, char *_file, int _line)
++{
++ struct _vx_limit *limit;
++ rlim_t value = 0;
++ int res;
++
++ if (num == 0)
++ return 1;
++ if (!vxi)
++ return 1;
++
++ limit = &vxi->limit;
++ res = *array;
++ value = __vx_cres_array_sum(limit, array + 1);
++
++ __rlim_set(limit, res, value);
++ __vx_cres_fixup(limit, res, value);
++
++ return __vx_cres_avail(vxi, res, num, _file, _line);
++}
++
++
++static inline void vx_limit_fixup(struct _vx_limit *limit, int id)
++{
++ rlim_t value;
++ int res;
++
++ /* complex resources first */
++ if ((id < 0) || (id == RLIMIT_RSS))
++ __vx_cres_array_fixup(limit, VLA_RSS);
++
++ for (res = 0; res < NUM_LIMITS; res++) {
++ if ((id > 0) && (res != id))
++ continue;
++
++ value = __rlim_get(limit, res);
++ __vx_cres_fixup(limit, res, value);
++
++ /* not supposed to happen, maybe warn? */
++ if (__rlim_rmax(limit, res) > __rlim_hard(limit, res))
++ __rlim_rmax(limit, res) = __rlim_hard(limit, res);
++ }
++}
++
++
++#endif /* __KERNEL__ */
++#endif /* _VX_LIMIT_INT_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/monitor.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/monitor.h
+--- linux-3.0.9/include/linux/vserver/monitor.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/monitor.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,96 @@
++#ifndef _VX_MONITOR_H
++#define _VX_MONITOR_H
++
++#include <linux/types.h>
++
++enum {
++ VXM_UNUSED = 0,
++
++ VXM_SYNC = 0x10,
++
++ VXM_UPDATE = 0x20,
++ VXM_UPDATE_1,
++ VXM_UPDATE_2,
++
++ VXM_RQINFO_1 = 0x24,
++ VXM_RQINFO_2,
++
++ VXM_ACTIVATE = 0x40,
++ VXM_DEACTIVATE,
++ VXM_IDLE,
++
++ VXM_HOLD = 0x44,
++ VXM_UNHOLD,
++
++ VXM_MIGRATE = 0x48,
++ VXM_RESCHED,
++
++ /* all other bits are flags */
++ VXM_SCHED = 0x80,
++};
++
++struct _vxm_update_1 {
++ uint32_t tokens_max;
++ uint32_t fill_rate;
++ uint32_t interval;
++};
++
++struct _vxm_update_2 {
++ uint32_t tokens_min;
++ uint32_t fill_rate;
++ uint32_t interval;
++};
++
++struct _vxm_rqinfo_1 {
++ uint16_t running;
++ uint16_t onhold;
++ uint16_t iowait;
++ uint16_t uintr;
++ uint32_t idle_tokens;
++};
++
++struct _vxm_rqinfo_2 {
++ uint32_t norm_time;
++ uint32_t idle_time;
++ uint32_t idle_skip;
++};
++
++struct _vxm_sched {
++ uint32_t tokens;
++ uint32_t norm_time;
++ uint32_t idle_time;
++};
++
++struct _vxm_task {
++ uint16_t pid;
++ uint16_t state;
++};
++
++struct _vxm_event {
++ uint32_t jif;
++ union {
++ uint32_t seq;
++ uint32_t sec;
++ };
++ union {
++ uint32_t tokens;
++ uint32_t nsec;
++ struct _vxm_task tsk;
++ };
++};
++
++struct _vx_mon_entry {
++ uint16_t type;
++ uint16_t xid;
++ union {
++ struct _vxm_event ev;
++ struct _vxm_sched sd;
++ struct _vxm_update_1 u1;
++ struct _vxm_update_2 u2;
++ struct _vxm_rqinfo_1 q1;
++ struct _vxm_rqinfo_2 q2;
++ };
++};
++
++
++#endif /* _VX_MONITOR_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/network.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/network.h
+--- linux-3.0.9/include/linux/vserver/network.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/network.h 2011-08-18 16:30:48.000000000 +0200
+@@ -0,0 +1,148 @@
++#ifndef _VX_NETWORK_H
++#define _VX_NETWORK_H
++
++#include <linux/types.h>
++
++
++#define MAX_N_CONTEXT 65535 /* Arbitrary limit */
++
++
++/* network flags */
++
++#define NXF_INFO_PRIVATE 0x00000008
++
++#define NXF_SINGLE_IP 0x00000100
++#define NXF_LBACK_REMAP 0x00000200
++#define NXF_LBACK_ALLOW 0x00000400
++
++#define NXF_HIDE_NETIF 0x02000000
++#define NXF_HIDE_LBACK 0x04000000
++
++#define NXF_STATE_SETUP (1ULL << 32)
++#define NXF_STATE_ADMIN (1ULL << 34)
++
++#define NXF_SC_HELPER (1ULL << 36)
++#define NXF_PERSISTENT (1ULL << 38)
++
++#define NXF_ONE_TIME (0x0005ULL << 32)
++
++
++#define NXF_INIT_SET (__nxf_init_set())
++
++static inline uint64_t __nxf_init_set(void) {
++ return NXF_STATE_ADMIN
++#ifdef CONFIG_VSERVER_AUTO_LBACK
++ | NXF_LBACK_REMAP
++ | NXF_HIDE_LBACK
++#endif
++#ifdef CONFIG_VSERVER_AUTO_SINGLE
++ | NXF_SINGLE_IP
++#endif
++ | NXF_HIDE_NETIF;
++}
++
++
++/* network caps */
++
++#define NXC_TUN_CREATE 0x00000001
++
++#define NXC_RAW_ICMP 0x00000100
++
++#define NXC_MULTICAST 0x00001000
++
++
++/* address types */
++
++#define NXA_TYPE_IPV4 0x0001
++#define NXA_TYPE_IPV6 0x0002
++
++#define NXA_TYPE_NONE 0x0000
++#define NXA_TYPE_ANY 0x00FF
++
++#define NXA_TYPE_ADDR 0x0010
++#define NXA_TYPE_MASK 0x0020
++#define NXA_TYPE_RANGE 0x0040
++
++#define NXA_MASK_ALL (NXA_TYPE_ADDR | NXA_TYPE_MASK | NXA_TYPE_RANGE)
++
++#define NXA_MOD_BCAST 0x0100
++#define NXA_MOD_LBACK 0x0200
++
++#define NXA_LOOPBACK 0x1000
++
++#define NXA_MASK_BIND (NXA_MASK_ALL | NXA_MOD_BCAST | NXA_MOD_LBACK)
++#define NXA_MASK_SHOW (NXA_MASK_ALL | NXA_LOOPBACK)
++
++#ifdef __KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++#include <linux/in.h>
++#include <linux/in6.h>
++#include <asm/atomic.h>
++
++struct nx_addr_v4 {
++ struct nx_addr_v4 *next;
++ struct in_addr ip[2];
++ struct in_addr mask;
++ uint16_t type;
++ uint16_t flags;
++};
++
++struct nx_addr_v6 {
++ struct nx_addr_v6 *next;
++ struct in6_addr ip;
++ struct in6_addr mask;
++ uint32_t prefix;
++ uint16_t type;
++ uint16_t flags;
++};
++
++struct nx_info {
++ struct hlist_node nx_hlist; /* linked list of nxinfos */
++ nid_t nx_id; /* vnet id */
++ atomic_t nx_usecnt; /* usage count */
++ atomic_t nx_tasks; /* tasks count */
++ int nx_state; /* context state */
++
++ uint64_t nx_flags; /* network flag word */
++ uint64_t nx_ncaps; /* network capabilities */
++
++ struct in_addr v4_lback; /* Loopback address */
++ struct in_addr v4_bcast; /* Broadcast address */
++ struct nx_addr_v4 v4; /* First/Single ipv4 address */
++#ifdef CONFIG_IPV6
++ struct nx_addr_v6 v6; /* First/Single ipv6 address */
++#endif
++ char nx_name[65]; /* network context name */
++};
++
++
++/* status flags */
++
++#define NXS_HASHED 0x0001
++#define NXS_SHUTDOWN 0x0100
++#define NXS_RELEASED 0x8000
++
++extern struct nx_info *lookup_nx_info(int);
++
++extern int get_nid_list(int, unsigned int *, int);
++extern int nid_is_hashed(nid_t);
++
++extern int nx_migrate_task(struct task_struct *, struct nx_info *);
++
++extern long vs_net_change(struct nx_info *, unsigned int);
++
++struct sock;
++
++
++#define NX_IPV4(n) ((n)->v4.type != NXA_TYPE_NONE)
++#ifdef CONFIG_IPV6
++#define NX_IPV6(n) ((n)->v6.type != NXA_TYPE_NONE)
++#else
++#define NX_IPV6(n) (0)
++#endif
++
++#endif /* __KERNEL__ */
++#endif /* _VX_NETWORK_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/network_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/network_cmd.h
+--- linux-3.0.9/include/linux/vserver/network_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/network_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,164 @@
++#ifndef _VX_NETWORK_CMD_H
++#define _VX_NETWORK_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_nid VC_CMD(VINFO, 2, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_nid(uint32_t);
++
++#endif /* __KERNEL__ */
++
++#define VCMD_nx_info VC_CMD(VINFO, 6, 0)
++
++struct vcmd_nx_info_v0 {
++ uint32_t nid;
++ /* more to come */
++};
++
++#ifdef __KERNEL__
++extern int vc_nx_info(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++#include <linux/in.h>
++#include <linux/in6.h>
++
++#define VCMD_net_create_v0 VC_CMD(VNET, 1, 0)
++#define VCMD_net_create VC_CMD(VNET, 1, 1)
++
++struct vcmd_net_create {
++ uint64_t flagword;
++};
++
++#define VCMD_net_migrate VC_CMD(NETMIG, 1, 0)
++
++#define VCMD_net_add VC_CMD(NETALT, 1, 0)
++#define VCMD_net_remove VC_CMD(NETALT, 2, 0)
++
++struct vcmd_net_addr_v0 {
++ uint16_t type;
++ uint16_t count;
++ struct in_addr ip[4];
++ struct in_addr mask[4];
++};
++
++#define VCMD_net_add_ipv4_v1 VC_CMD(NETALT, 1, 1)
++#define VCMD_net_rem_ipv4_v1 VC_CMD(NETALT, 2, 1)
++
++struct vcmd_net_addr_ipv4_v1 {
++ uint16_t type;
++ uint16_t flags;
++ struct in_addr ip;
++ struct in_addr mask;
++};
++
++#define VCMD_net_add_ipv4 VC_CMD(NETALT, 1, 2)
++#define VCMD_net_rem_ipv4 VC_CMD(NETALT, 2, 2)
++
++struct vcmd_net_addr_ipv4_v2 {
++ uint16_t type;
++ uint16_t flags;
++ struct in_addr ip;
++ struct in_addr ip2;
++ struct in_addr mask;
++};
++
++#define VCMD_net_add_ipv6 VC_CMD(NETALT, 3, 1)
++#define VCMD_net_remove_ipv6 VC_CMD(NETALT, 4, 1)
++
++struct vcmd_net_addr_ipv6_v1 {
++ uint16_t type;
++ uint16_t flags;
++ uint32_t prefix;
++ struct in6_addr ip;
++ struct in6_addr mask;
++};
++
++#define VCMD_add_match_ipv4 VC_CMD(NETALT, 5, 0)
++#define VCMD_get_match_ipv4 VC_CMD(NETALT, 6, 0)
++
++struct vcmd_match_ipv4_v0 {
++ uint16_t type;
++ uint16_t flags;
++ uint16_t parent;
++ uint16_t prefix;
++ struct in_addr ip;
++ struct in_addr ip2;
++ struct in_addr mask;
++};
++
++#define VCMD_add_match_ipv6 VC_CMD(NETALT, 7, 0)
++#define VCMD_get_match_ipv6 VC_CMD(NETALT, 8, 0)
++
++struct vcmd_match_ipv6_v0 {
++ uint16_t type;
++ uint16_t flags;
++ uint16_t parent;
++ uint16_t prefix;
++ struct in6_addr ip;
++ struct in6_addr ip2;
++ struct in6_addr mask;
++};
++
++
++#ifdef __KERNEL__
++extern int vc_net_create(uint32_t, void __user *);
++extern int vc_net_migrate(struct nx_info *, void __user *);
++
++extern int vc_net_add(struct nx_info *, void __user *);
++extern int vc_net_remove(struct nx_info *, void __user *);
++
++extern int vc_net_add_ipv4_v1(struct nx_info *, void __user *);
++extern int vc_net_add_ipv4(struct nx_info *, void __user *);
++
++extern int vc_net_rem_ipv4_v1(struct nx_info *, void __user *);
++extern int vc_net_rem_ipv4(struct nx_info *, void __user *);
++
++extern int vc_net_add_ipv6(struct nx_info *, void __user *);
++extern int vc_net_remove_ipv6(struct nx_info *, void __user *);
++
++extern int vc_add_match_ipv4(struct nx_info *, void __user *);
++extern int vc_get_match_ipv4(struct nx_info *, void __user *);
++
++extern int vc_add_match_ipv6(struct nx_info *, void __user *);
++extern int vc_get_match_ipv6(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_nflags VC_CMD(FLAGS, 5, 0)
++#define VCMD_set_nflags VC_CMD(FLAGS, 6, 0)
++
++struct vcmd_net_flags_v0 {
++ uint64_t flagword;
++ uint64_t mask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_nflags(struct nx_info *, void __user *);
++extern int vc_set_nflags(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++
++/* network caps commands */
++
++#define VCMD_get_ncaps VC_CMD(FLAGS, 7, 0)
++#define VCMD_set_ncaps VC_CMD(FLAGS, 8, 0)
++
++struct vcmd_net_caps_v0 {
++ uint64_t ncaps;
++ uint64_t cmask;
++};
++
++#ifdef __KERNEL__
++extern int vc_get_ncaps(struct nx_info *, void __user *);
++extern int vc_set_ncaps(struct nx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_CONTEXT_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/percpu.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/percpu.h
+--- linux-3.0.9/include/linux/vserver/percpu.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/percpu.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,14 @@
++#ifndef _VX_PERCPU_H
++#define _VX_PERCPU_H
++
++#include "cvirt_def.h"
++#include "sched_def.h"
++
++struct _vx_percpu {
++ struct _vx_cvirt_pc cvirt;
++ struct _vx_sched_pc sched;
++};
++
++#define PERCPU_PERCTX (sizeof(struct _vx_percpu))
++
++#endif /* _VX_PERCPU_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/pid.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/pid.h
+--- linux-3.0.9/include/linux/vserver/pid.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/pid.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,51 @@
++#ifndef _VSERVER_PID_H
++#define _VSERVER_PID_H
++
++/* pid faking stuff */
++
++#define vx_info_map_pid(v, p) \
++ __vx_info_map_pid((v), (p), __func__, __FILE__, __LINE__)
++#define vx_info_map_tgid(v,p) vx_info_map_pid(v,p)
++#define vx_map_pid(p) vx_info_map_pid(current_vx_info(), p)
++#define vx_map_tgid(p) vx_map_pid(p)
++
++static inline int __vx_info_map_pid(struct vx_info *vxi, int pid,
++ const char *func, const char *file, int line)
++{
++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++ vxfprintk(VXD_CBIT(cvirt, 2),
++ "vx_map_tgid: %p/%llx: %d -> %d",
++ vxi, (long long)vxi->vx_flags, pid,
++ (pid && pid == vxi->vx_initpid) ? 1 : pid,
++ func, file, line);
++ if (pid == 0)
++ return 0;
++ if (pid == vxi->vx_initpid)
++ return 1;
++ }
++ return pid;
++}
++
++#define vx_info_rmap_pid(v, p) \
++ __vx_info_rmap_pid((v), (p), __func__, __FILE__, __LINE__)
++#define vx_rmap_pid(p) vx_info_rmap_pid(current_vx_info(), p)
++#define vx_rmap_tgid(p) vx_rmap_pid(p)
++
++static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid,
++ const char *func, const char *file, int line)
++{
++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++ vxfprintk(VXD_CBIT(cvirt, 2),
++ "vx_rmap_tgid: %p/%llx: %d -> %d",
++ vxi, (long long)vxi->vx_flags, pid,
++ (pid == 1) ? vxi->vx_initpid : pid,
++ func, file, line);
++ if ((pid == 1) && vxi->vx_initpid)
++ return vxi->vx_initpid;
++ if (pid == vxi->vx_initpid)
++ return ~0U;
++ }
++ return pid;
++}
++
++#endif
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/sched.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched.h
+--- linux-3.0.9/include/linux/vserver/sched.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,23 @@
++#ifndef _VX_SCHED_H
++#define _VX_SCHED_H
++
++
++#ifdef __KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++void vx_update_sched_param(struct _vx_sched *sched,
++ struct _vx_sched_pc *sched_pc);
++
++#endif /* __KERNEL__ */
++#else /* _VX_SCHED_H */
++#warning duplicate inclusion
++#endif /* _VX_SCHED_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/sched_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched_cmd.h
+--- linux-3.0.9/include/linux/vserver/sched_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,21 @@
++#ifndef _VX_SCHED_CMD_H
++#define _VX_SCHED_CMD_H
++
++
++struct vcmd_prio_bias {
++ int32_t cpu_id;
++ int32_t prio_bias;
++};
++
++#define VCMD_set_prio_bias VC_CMD(SCHED, 4, 0)
++#define VCMD_get_prio_bias VC_CMD(SCHED, 5, 0)
++
++#ifdef __KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_prio_bias(struct vx_info *, void __user *);
++extern int vc_get_prio_bias(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SCHED_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/sched_def.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched_def.h
+--- linux-3.0.9/include/linux/vserver/sched_def.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/sched_def.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,38 @@
++#ifndef _VX_SCHED_DEF_H
++#define _VX_SCHED_DEF_H
++
++#include <linux/spinlock.h>
++#include <linux/jiffies.h>
++#include <linux/cpumask.h>
++#include <asm/atomic.h>
++#include <asm/param.h>
++
++
++/* context sub struct */
++
++struct _vx_sched {
++ int prio_bias; /* bias offset for priority */
++
++ cpumask_t update; /* CPUs which should update */
++};
++
++struct _vx_sched_pc {
++ int prio_bias; /* bias offset for priority */
++
++ uint64_t user_ticks; /* token tick events */
++ uint64_t sys_ticks; /* token tick events */
++ uint64_t hold_ticks; /* token ticks paused */
++};
++
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++static inline void __dump_vx_sched(struct _vx_sched *sched)
++{
++ printk("\t_vx_sched:\n");
++ printk("\t priority = %4d\n", sched->prio_bias);
++}
++
++#endif
++
++#endif /* _VX_SCHED_DEF_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/signal.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/signal.h
+--- linux-3.0.9/include/linux/vserver/signal.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/signal.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,14 @@
++#ifndef _VX_SIGNAL_H
++#define _VX_SIGNAL_H
++
++
++#ifdef __KERNEL__
++
++struct vx_info;
++
++int vx_info_kill(struct vx_info *, int, int);
++
++#endif /* __KERNEL__ */
++#else /* _VX_SIGNAL_H */
++#warning duplicate inclusion
++#endif /* _VX_SIGNAL_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/signal_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/signal_cmd.h
+--- linux-3.0.9/include/linux/vserver/signal_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/signal_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,43 @@
++#ifndef _VX_SIGNAL_CMD_H
++#define _VX_SIGNAL_CMD_H
++
++
++/* signalling vserver commands */
++
++#define VCMD_ctx_kill VC_CMD(PROCTRL, 1, 0)
++#define VCMD_wait_exit VC_CMD(EVENT, 99, 0)
++
++struct vcmd_ctx_kill_v0 {
++ int32_t pid;
++ int32_t sig;
++};
++
++struct vcmd_wait_exit_v0 {
++ int32_t reboot_cmd;
++ int32_t exit_code;
++};
++
++#ifdef __KERNEL__
++
++extern int vc_ctx_kill(struct vx_info *, void __user *);
++extern int vc_wait_exit(struct vx_info *, void __user *);
++
++#endif /* __KERNEL__ */
++
++/* process alteration commands */
++
++#define VCMD_get_pflags VC_CMD(PROCALT, 5, 0)
++#define VCMD_set_pflags VC_CMD(PROCALT, 6, 0)
++
++struct vcmd_pflags_v0 {
++ uint32_t flagword;
++ uint32_t mask;
++};
++
++#ifdef __KERNEL__
++
++extern int vc_get_pflags(uint32_t pid, void __user *);
++extern int vc_set_pflags(uint32_t pid, void __user *);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SIGNAL_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/space.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/space.h
+--- linux-3.0.9/include/linux/vserver/space.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/space.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,12 @@
++#ifndef _VX_SPACE_H
++#define _VX_SPACE_H
++
++#include <linux/types.h>
++
++struct vx_info;
++
++int vx_set_space(struct vx_info *vxi, unsigned long mask, unsigned index);
++
++#else /* _VX_SPACE_H */
++#warning duplicate inclusion
++#endif /* _VX_SPACE_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/space_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/space_cmd.h
+--- linux-3.0.9/include/linux/vserver/space_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/space_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,38 @@
++#ifndef _VX_SPACE_CMD_H
++#define _VX_SPACE_CMD_H
++
++
++#define VCMD_enter_space_v0 VC_CMD(PROCALT, 1, 0)
++#define VCMD_enter_space_v1 VC_CMD(PROCALT, 1, 1)
++#define VCMD_enter_space VC_CMD(PROCALT, 1, 2)
++
++#define VCMD_set_space_v0 VC_CMD(PROCALT, 3, 0)
++#define VCMD_set_space_v1 VC_CMD(PROCALT, 3, 1)
++#define VCMD_set_space VC_CMD(PROCALT, 3, 2)
++
++#define VCMD_get_space_mask_v0 VC_CMD(PROCALT, 4, 0)
++
++#define VCMD_get_space_mask VC_CMD(VSPACE, 0, 1)
++#define VCMD_get_space_default VC_CMD(VSPACE, 1, 0)
++
++
++struct vcmd_space_mask_v1 {
++ uint64_t mask;
++};
++
++struct vcmd_space_mask_v2 {
++ uint64_t mask;
++ uint32_t index;
++};
++
++
++#ifdef __KERNEL__
++
++extern int vc_enter_space_v1(struct vx_info *, void __user *);
++extern int vc_set_space_v1(struct vx_info *, void __user *);
++extern int vc_enter_space(struct vx_info *, void __user *);
++extern int vc_set_space(struct vx_info *, void __user *);
++extern int vc_get_space_mask(void __user *, int);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_SPACE_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/switch.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/switch.h
+--- linux-3.0.9/include/linux/vserver/switch.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/switch.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,98 @@
++#ifndef _VX_SWITCH_H
++#define _VX_SWITCH_H
++
++#include <linux/types.h>
++
++
++#define VC_CATEGORY(c) (((c) >> 24) & 0x3F)
++#define VC_COMMAND(c) (((c) >> 16) & 0xFF)
++#define VC_VERSION(c) ((c) & 0xFFF)
++
++#define VC_CMD(c, i, v) ((((VC_CAT_ ## c) & 0x3F) << 24) \
++ | (((i) & 0xFF) << 16) | ((v) & 0xFFF))
++
++/*
++
++ Syscall Matrix V2.8
++
++ |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL|
++ |STATS |DESTROY|ALTER |CHANGE |LIMIT |TEST | | | |
++ |INFO |SETUP | |MOVE | | | | | |
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ SYSTEM |VERSION|VSETUP |VHOST | | | | |DEVICE | |
++ HOST | 00| 01| 02| 03| 04| 05| | 06| 07|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ CPU | |VPROC |PROCALT|PROCMIG|PROCTRL| | |SCHED. | |
++ PROCESS| 08| 09| 10| 11| 12| 13| | 14| 15|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ MEMORY | | | | |MEMCTRL| | |SWAP | |
++ | 16| 17| 18| 19| 20| 21| | 22| 23|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ NETWORK| |VNET |NETALT |NETMIG |NETCTL | | |SERIAL | |
++ | 24| 25| 26| 27| 28| 29| | 30| 31|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ DISK | | | |TAGMIG |DLIMIT | | |INODE | |
++ VFS | 32| 33| 34| 35| 36| 37| | 38| 39|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ OTHER |VSTAT | | | | | | |VINFO | |
++ | 40| 41| 42| 43| 44| 45| | 46| 47|
++ =======+=======+=======+=======+=======+=======+=======+ +=======+=======+
++ SPECIAL|EVENT | | | |FLAGS | | |VSPACE | |
++ | 48| 49| 50| 51| 52| 53| | 54| 55|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++ SPECIAL|DEBUG | | | |RLIMIT |SYSCALL| | |COMPAT |
++ | 56| 57| 58| 59| 60|TEST 61| | 62| 63|
++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++
++*/
++
++#define VC_CAT_VERSION 0
++
++#define VC_CAT_VSETUP 1
++#define VC_CAT_VHOST 2
++
++#define VC_CAT_DEVICE 6
++
++#define VC_CAT_VPROC 9
++#define VC_CAT_PROCALT 10
++#define VC_CAT_PROCMIG 11
++#define VC_CAT_PROCTRL 12
++
++#define VC_CAT_SCHED 14
++#define VC_CAT_MEMCTRL 20
++
++#define VC_CAT_VNET 25
++#define VC_CAT_NETALT 26
++#define VC_CAT_NETMIG 27
++#define VC_CAT_NETCTRL 28
++
++#define VC_CAT_TAGMIG 35
++#define VC_CAT_DLIMIT 36
++#define VC_CAT_INODE 38
++
++#define VC_CAT_VSTAT 40
++#define VC_CAT_VINFO 46
++#define VC_CAT_EVENT 48
++
++#define VC_CAT_FLAGS 52
++#define VC_CAT_VSPACE 54
++#define VC_CAT_DEBUG 56
++#define VC_CAT_RLIMIT 60
++
++#define VC_CAT_SYSTEST 61
++#define VC_CAT_COMPAT 63
++
++/* query version */
++
++#define VCMD_get_version VC_CMD(VERSION, 0, 0)
++#define VCMD_get_vci VC_CMD(VERSION, 1, 0)
++
++
++#ifdef __KERNEL__
++
++#include <linux/errno.h>
++
++#endif /* __KERNEL__ */
++
++#endif /* _VX_SWITCH_H */
++
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/tag.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/tag.h
+--- linux-3.0.9/include/linux/vserver/tag.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/tag.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,143 @@
++#ifndef _DX_TAG_H
++#define _DX_TAG_H
++
++#include <linux/types.h>
++
++
++#define DX_TAG(in) (IS_TAGGED(in))
++
++
++#ifdef CONFIG_TAG_NFSD
++#define DX_TAG_NFSD 1
++#else
++#define DX_TAG_NFSD 0
++#endif
++
++
++#ifdef CONFIG_TAGGING_NONE
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) (0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_GID16
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0x0000FFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (((gid) >> 16) & 0xFFFF) : 0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) \
++ ((cond) ? (((gid) & 0xFFFF) | ((tag) << 16)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_ID24
++
++#define MAX_UID 0x00FFFFFF
++#define MAX_GID 0x00FFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0)
++
++#define TAGINO_UID(cond, uid, tag) \
++ ((cond) ? (((uid) & 0xFFFFFF) | (((tag) & 0xFF00) << 16)) : (uid))
++#define TAGINO_GID(cond, gid, tag) \
++ ((cond) ? (((gid) & 0xFFFFFF) | (((tag) & 0x00FF) << 24)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_UID16
++
++#define MAX_UID 0x0000FFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (((uid) >> 16) & 0xFFFF) : 0)
++
++#define TAGINO_UID(cond, uid, tag) \
++ ((cond) ? (((uid) & 0xFFFF) | ((tag) << 16)) : (uid))
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifdef CONFIG_TAGGING_INTERN
++
++#define MAX_UID 0xFFFFFFFF
++#define MAX_GID 0xFFFFFFFF
++
++#define INOTAG_TAG(cond, uid, gid, tag) \
++ ((cond) ? (tag) : 0)
++
++#define TAGINO_UID(cond, uid, tag) (uid)
++#define TAGINO_GID(cond, gid, tag) (gid)
++
++#endif
++
++
++#ifndef CONFIG_TAGGING_NONE
++#define dx_current_fstag(sb) \
++ ((sb)->s_flags & MS_TAGGED ? dx_current_tag() : 0)
++#else
++#define dx_current_fstag(sb) (0)
++#endif
++
++#ifndef CONFIG_TAGGING_INTERN
++#define TAGINO_TAG(cond, tag) (0)
++#else
++#define TAGINO_TAG(cond, tag) ((cond) ? (tag) : 0)
++#endif
++
++#define INOTAG_UID(cond, uid, gid) \
++ ((cond) ? ((uid) & MAX_UID) : (uid))
++#define INOTAG_GID(cond, uid, gid) \
++ ((cond) ? ((gid) & MAX_GID) : (gid))
++
++
++static inline uid_t dx_map_uid(uid_t uid)
++{
++ if ((uid > MAX_UID) && (uid != -1))
++ uid = -2;
++ return (uid & MAX_UID);
++}
++
++static inline gid_t dx_map_gid(gid_t gid)
++{
++ if ((gid > MAX_GID) && (gid != -1))
++ gid = -2;
++ return (gid & MAX_GID);
++}
++
++struct peer_tag {
++ int32_t xid;
++ int32_t nid;
++};
++
++#define dx_notagcheck(sb) ((sb) && ((sb)->s_flags & MS_NOTAGCHECK))
++
++int dx_parse_tag(char *string, tag_t *tag, int remove, int *mnt_flags,
++ unsigned long *flags);
++
++#ifdef CONFIG_PROPAGATE
++
++void __dx_propagate_tag(struct nameidata *nd, struct inode *inode);
++
++#define dx_propagate_tag(n, i) __dx_propagate_tag(n, i)
++
++#else
++#define dx_propagate_tag(n, i) do { } while (0)
++#endif
++
++#endif /* _DX_TAG_H */
+diff -NurpP --minimal linux-3.0.9/include/linux/vserver/tag_cmd.h linux-3.0.9-vs2.3.2.1/include/linux/vserver/tag_cmd.h
+--- linux-3.0.9/include/linux/vserver/tag_cmd.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/linux/vserver/tag_cmd.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,22 @@
++#ifndef _VX_TAG_CMD_H
++#define _VX_TAG_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_tag VC_CMD(VINFO, 3, 0)
++
++#ifdef __KERNEL__
++extern int vc_task_tag(uint32_t);
++
++#endif /* __KERNEL__ */
++
++/* context commands */
++
++#define VCMD_tag_migrate VC_CMD(TAGMIG, 1, 0)
++
++#ifdef __KERNEL__
++extern int vc_tag_migrate(uint32_t);
++
++#endif /* __KERNEL__ */
++#endif /* _VX_TAG_CMD_H */
+diff -NurpP --minimal linux-3.0.9/include/net/addrconf.h linux-3.0.9-vs2.3.2.1/include/net/addrconf.h
+--- linux-3.0.9/include/net/addrconf.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/net/addrconf.h 2011-06-10 22:11:24.000000000 +0200
+@@ -80,7 +80,8 @@ extern int ipv6_dev_get_saddr(struct n
+ struct net_device *dev,
+ const struct in6_addr *daddr,
+ unsigned int srcprefs,
+- struct in6_addr *saddr);
++ struct in6_addr *saddr,
++ struct nx_info *nxi);
+ extern int ipv6_get_lladdr(struct net_device *dev,
+ struct in6_addr *addr,
+ unsigned char banned_flags);
+diff -NurpP --minimal linux-3.0.9/include/net/af_unix.h linux-3.0.9-vs2.3.2.1/include/net/af_unix.h
+--- linux-3.0.9/include/net/af_unix.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/net/af_unix.h 2011-06-10 22:11:24.000000000 +0200
+@@ -4,6 +4,7 @@
+ #include <linux/socket.h>
+ #include <linux/un.h>
+ #include <linux/mutex.h>
++#include <linux/vs_base.h>
+ #include <net/sock.h>
+
+ extern void unix_inflight(struct file *fp);
+diff -NurpP --minimal linux-3.0.9/include/net/inet_timewait_sock.h linux-3.0.9-vs2.3.2.1/include/net/inet_timewait_sock.h
+--- linux-3.0.9/include/net/inet_timewait_sock.h 2011-03-15 18:07:40.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/include/net/inet_timewait_sock.h 2011-06-10 22:11:24.000000000 +0200
+@@ -113,6 +113,10 @@ struct inet_timewait_sock {
+ #define tw_net __tw_common.skc_net
+ #define tw_daddr __tw_common.skc_daddr
+ #define tw_rcv_saddr __tw_common.skc_rcv_saddr
++#define tw_xid __tw_common.skc_xid
++#define tw_vx_info __tw_common.skc_vx_info
++#define tw_nid __tw_common.skc_nid
++#define tw_nx_info __tw_common.skc_nx_info
+ int tw_timeout;
+ volatile unsigned char tw_substate;
+ unsigned char tw_rcv_wscale;
+diff -NurpP --minimal linux-3.0.9/include/net/ip6_route.h linux-3.0.9-vs2.3.2.1/include/net/ip6_route.h
+--- linux-3.0.9/include/net/ip6_route.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/net/ip6_route.h 2011-06-16 14:16:51.000000000 +0200
+@@ -86,7 +86,8 @@ extern int ip6_route_get_saddr(struct
+ struct rt6_info *rt,
+ const struct in6_addr *daddr,
+ unsigned int prefs,
+- struct in6_addr *saddr);
++ struct in6_addr *saddr,
++ struct nx_info *nxi);
+
+ extern struct rt6_info *rt6_lookup(struct net *net,
+ const struct in6_addr *daddr,
+diff -NurpP --minimal linux-3.0.9/include/net/route.h linux-3.0.9-vs2.3.2.1/include/net/route.h
+--- linux-3.0.9/include/net/route.h 2011-07-22 11:18:11.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/net/route.h 2011-07-27 19:42:59.000000000 +0200
+@@ -202,6 +202,9 @@ static inline void ip_rt_put(struct rtab
+ dst_release(&rt->dst);
+ }
+
++#include <linux/vs_base.h>
++#include <linux/vs_inet.h>
++
+ #define IPTOS_RT_MASK (IPTOS_TOS_MASK & ~3)
+
+ extern const __u8 ip_tos2prio[16];
+@@ -253,6 +256,9 @@ static inline void ip_route_connect_init
+ protocol, flow_flags, dst, src, dport, sport);
+ }
+
++extern struct rtable *ip_v4_find_src(struct net *net, struct nx_info *,
++ struct flowi4 *);
++
+ static inline struct rtable *ip_route_connect(struct flowi4 *fl4,
+ __be32 dst, __be32 src, u32 tos,
+ int oif, u8 protocol,
+@@ -261,11 +267,25 @@ static inline struct rtable *ip_route_co
+ {
+ struct net *net = sock_net(sk);
+ struct rtable *rt;
++ struct nx_info *nx_info = current_nx_info();
+
+ ip_route_connect_init(fl4, dst, src, tos, oif, protocol,
+ sport, dport, sk, can_sleep);
+
+- if (!dst || !src) {
++ if (sk)
++ nx_info = sk->sk_nx_info;
++
++ vxdprintk(VXD_CBIT(net, 4),
++ "ip_route_connect(%p) %p,%p;%lx",
++ sk, nx_info, sk->sk_socket,
++ (sk->sk_socket?sk->sk_socket->flags:0));
++
++ rt = ip_v4_find_src(net, nx_info, fl4);
++ if (IS_ERR(rt))
++ return rt;
++ ip_rt_put(rt);
++
++ if (!fl4->daddr || !fl4->saddr) {
+ rt = __ip_route_output_key(net, fl4);
+ if (IS_ERR(rt))
+ return rt;
+diff -NurpP --minimal linux-3.0.9/include/net/sock.h linux-3.0.9-vs2.3.2.1/include/net/sock.h
+--- linux-3.0.9/include/net/sock.h 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/include/net/sock.h 2011-07-01 11:35:35.000000000 +0200
+@@ -149,6 +149,10 @@ struct sock_common {
+ #ifdef CONFIG_NET_NS
+ struct net *skc_net;
+ #endif
++ xid_t skc_xid;
++ struct vx_info *skc_vx_info;
++ nid_t skc_nid;
++ struct nx_info *skc_nx_info;
+ /*
+ * fields between dontcopy_begin/dontcopy_end
+ * are not copied in sock_copy()
+@@ -256,6 +260,10 @@ struct sock {
+ #define sk_bind_node __sk_common.skc_bind_node
+ #define sk_prot __sk_common.skc_prot
+ #define sk_net __sk_common.skc_net
++#define sk_xid __sk_common.skc_xid
++#define sk_vx_info __sk_common.skc_vx_info
++#define sk_nid __sk_common.skc_nid
++#define sk_nx_info __sk_common.skc_nx_info
+ socket_lock_t sk_lock;
+ struct sk_buff_head sk_receive_queue;
+ /*
+diff -NurpP --minimal linux-3.0.9/init/Kconfig linux-3.0.9-vs2.3.2.1/init/Kconfig
+--- linux-3.0.9/init/Kconfig 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/init/Kconfig 2011-08-08 18:08:57.000000000 +0200
+@@ -574,6 +574,7 @@ config HAVE_UNSTABLE_SCHED_CLOCK
+ menuconfig CGROUPS
+ boolean "Control Group support"
+ depends on EVENTFD
++ default y
+ help
+ This option adds support for grouping sets of processes together, for
+ use with process control subsystems such as Cpusets, CFS, memory
+@@ -790,6 +791,7 @@ config IPC_NS
+ config USER_NS
+ bool "User namespace (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
++ depends on VSERVER_DISABLED
+ default y
+ help
+ This allows containers, i.e. vservers, to use user namespaces
+diff -NurpP --minimal linux-3.0.9/init/main.c linux-3.0.9-vs2.3.2.1/init/main.c
+--- linux-3.0.9/init/main.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/init/main.c 2011-06-22 12:39:15.000000000 +0200
+@@ -68,6 +68,7 @@
+ #include <linux/shmem_fs.h>
+ #include <linux/slab.h>
+ #include <linux/perf_event.h>
++#include <linux/vserver/percpu.h>
+
+ #include <asm/io.h>
+ #include <asm/bugs.h>
+diff -NurpP --minimal linux-3.0.9/ipc/mqueue.c linux-3.0.9-vs2.3.2.1/ipc/mqueue.c
+--- linux-3.0.9/ipc/mqueue.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/ipc/mqueue.c 2011-10-18 14:03:46.000000000 +0200
+@@ -33,6 +33,8 @@
+ #include <linux/pid.h>
+ #include <linux/ipc_namespace.h>
+ #include <linux/slab.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+
+ #include <net/sock.h>
+ #include "util.h"
+@@ -66,6 +68,7 @@ struct mqueue_inode_info {
+ struct sigevent notify;
+ struct pid* notify_owner;
+ struct user_struct *user; /* user who created, for accounting */
++ struct vx_info *vxi;
+ struct sock *notify_sock;
+ struct sk_buff *notify_cookie;
+
+@@ -128,6 +131,7 @@ static struct inode *mqueue_get_inode(st
+ if (S_ISREG(mode)) {
+ struct mqueue_inode_info *info;
+ struct task_struct *p = current;
++ struct vx_info *vxi = p->vx_info;
+ unsigned long mq_bytes, mq_msg_tblsz;
+
+ inode->i_fop = &mqueue_file_operations;
+@@ -141,6 +145,7 @@ static struct inode *mqueue_get_inode(st
+ info->notify_owner = NULL;
+ info->qsize = 0;
+ info->user = NULL; /* set when all is ok */
++ info->vxi = NULL;
+ memset(&info->attr, 0, sizeof(info->attr));
+ info->attr.mq_maxmsg = ipc_ns->mq_msg_max;
+ info->attr.mq_msgsize = ipc_ns->mq_msgsize_max;
+@@ -158,17 +163,20 @@ static struct inode *mqueue_get_inode(st
+
+ spin_lock(&mq_lock);
+ if (u->mq_bytes + mq_bytes < u->mq_bytes ||
+- u->mq_bytes + mq_bytes > task_rlimit(p, RLIMIT_MSGQUEUE)) {
++ u->mq_bytes + mq_bytes > task_rlimit(p, RLIMIT_MSGQUEUE) ||
++ !vx_ipcmsg_avail(vxi, mq_bytes)) {
+ spin_unlock(&mq_lock);
+ /* mqueue_evict_inode() releases info->messages */
+ ret = -EMFILE;
+ goto out_inode;
+ }
+ u->mq_bytes += mq_bytes;
++ vx_ipcmsg_add(vxi, u, mq_bytes);
+ spin_unlock(&mq_lock);
+
+ /* all is ok */
+ info->user = get_uid(u);
++ info->vxi = get_vx_info(vxi);
+ } else if (S_ISDIR(mode)) {
+ inc_nlink(inode);
+ /* Some things misbehave if size == 0 on a directory */
+@@ -278,8 +286,11 @@ static void mqueue_evict_inode(struct in
+ + info->attr.mq_msgsize);
+ user = info->user;
+ if (user) {
++ struct vx_info *vxi = info->vxi;
++
+ spin_lock(&mq_lock);
+ user->mq_bytes -= mq_bytes;
++ vx_ipcmsg_sub(vxi, user, mq_bytes);
+ /*
+ * get_ns_from_inode() ensures that the
+ * (ipc_ns = sb->s_fs_info) is either a valid ipc_ns
+@@ -289,6 +300,7 @@ static void mqueue_evict_inode(struct in
+ if (ipc_ns)
+ ipc_ns->mq_queues_count--;
+ spin_unlock(&mq_lock);
++ put_vx_info(vxi);
+ free_uid(user);
+ }
+ if (ipc_ns)
+diff -NurpP --minimal linux-3.0.9/ipc/msg.c linux-3.0.9-vs2.3.2.1/ipc/msg.c
+--- linux-3.0.9/ipc/msg.c 2011-05-22 16:17:59.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/ipc/msg.c 2011-06-10 22:11:24.000000000 +0200
+@@ -37,6 +37,7 @@
+ #include <linux/rwsem.h>
+ #include <linux/nsproxy.h>
+ #include <linux/ipc_namespace.h>
++#include <linux/vs_base.h>
+
+ #include <asm/current.h>
+ #include <asm/uaccess.h>
+@@ -190,6 +191,7 @@ static int newque(struct ipc_namespace *
+
+ msq->q_perm.mode = msgflg & S_IRWXUGO;
+ msq->q_perm.key = key;
++ msq->q_perm.xid = vx_current_xid();
+
+ msq->q_perm.security = NULL;
+ retval = security_msg_queue_alloc(msq);
+diff -NurpP --minimal linux-3.0.9/ipc/namespace.c linux-3.0.9-vs2.3.2.1/ipc/namespace.c
+--- linux-3.0.9/ipc/namespace.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/ipc/namespace.c 2011-06-13 14:09:44.000000000 +0200
+@@ -13,11 +13,12 @@
+ #include <linux/mount.h>
+ #include <linux/user_namespace.h>
+ #include <linux/proc_fs.h>
++#include <linux/vs_base.h>
++#include <linux/vserver/global.h>
+
+ #include "util.h"
+
+-static struct ipc_namespace *create_ipc_ns(struct task_struct *tsk,
+- struct ipc_namespace *old_ns)
++static struct ipc_namespace *create_ipc_ns(struct user_namespace *user_ns)
+ {
+ struct ipc_namespace *ns;
+ int err;
+@@ -46,19 +47,18 @@ static struct ipc_namespace *create_ipc_
+ ipcns_notify(IPCNS_CREATED);
+ register_ipcns_notifier(ns);
+
+- ns->user_ns = get_user_ns(task_cred_xxx(tsk, user)->user_ns);
++ ns->user_ns = get_user_ns(user_ns);
+
+ return ns;
+ }
+
+ struct ipc_namespace *copy_ipcs(unsigned long flags,
+- struct task_struct *tsk)
++ struct ipc_namespace *old_ns,
++ struct user_namespace *user_ns)
+ {
+- struct ipc_namespace *ns = tsk->nsproxy->ipc_ns;
+-
+ if (!(flags & CLONE_NEWIPC))
+- return get_ipc_ns(ns);
+- return create_ipc_ns(tsk, ns);
++ return get_ipc_ns(old_ns);
++ return create_ipc_ns(user_ns);
+ }
+
+ /*
+diff -NurpP --minimal linux-3.0.9/ipc/sem.c linux-3.0.9-vs2.3.2.1/ipc/sem.c
+--- linux-3.0.9/ipc/sem.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/ipc/sem.c 2011-08-08 23:04:47.000000000 +0200
+@@ -86,6 +86,8 @@
+ #include <linux/rwsem.h>
+ #include <linux/nsproxy.h>
+ #include <linux/ipc_namespace.h>
++#include <linux/vs_base.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+ #include "util.h"
+@@ -260,6 +262,7 @@ static int newary(struct ipc_namespace *
+
+ sma->sem_perm.mode = (semflg & S_IRWXUGO);
+ sma->sem_perm.key = key;
++ sma->sem_perm.xid = vx_current_xid();
+
+ sma->sem_perm.security = NULL;
+ retval = security_sem_alloc(sma);
+@@ -275,6 +278,9 @@ static int newary(struct ipc_namespace *
+ return id;
+ }
+ ns->used_sems += nsems;
++ /* FIXME: obsoleted? */
++ vx_semary_inc(sma);
++ vx_nsems_add(sma, nsems);
+
+ sma->sem_base = (struct sem *) &sma[1];
+
+@@ -730,6 +736,9 @@ static void freeary(struct ipc_namespace
+
+ wake_up_sem_queue_do(&tasks);
+ ns->used_sems -= sma->sem_nsems;
++ /* FIXME: obsoleted? */
++ vx_nsems_sub(sma, sma->sem_nsems);
++ vx_semary_dec(sma);
+ security_sem_free(sma);
+ ipc_rcu_putref(sma);
+ }
+diff -NurpP --minimal linux-3.0.9/ipc/shm.c linux-3.0.9-vs2.3.2.1/ipc/shm.c
+--- linux-3.0.9/ipc/shm.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/ipc/shm.c 2011-06-10 22:11:24.000000000 +0200
+@@ -39,6 +39,8 @@
+ #include <linux/nsproxy.h>
+ #include <linux/mount.h>
+ #include <linux/ipc_namespace.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+
+ #include <asm/uaccess.h>
+
+@@ -173,7 +175,12 @@ static void shm_open(struct vm_area_stru
+ */
+ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
+ {
+- ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++ struct vx_info *vxi = lookup_vx_info(shp->shm_perm.xid);
++ int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++
++ vx_ipcshm_sub(vxi, shp, numpages);
++ ns->shm_tot -= numpages;
++
+ shm_rmid(ns, shp);
+ shm_unlock(shp);
+ if (!is_file_hugepages(shp->shm_file))
+@@ -183,6 +190,7 @@ static void shm_destroy(struct ipc_names
+ shp->mlock_user);
+ fput (shp->shm_file);
+ security_shm_free(shp);
++ put_vx_info(vxi);
+ ipc_rcu_putref(shp);
+ }
+
+@@ -355,11 +363,15 @@ static int newseg(struct ipc_namespace *
+ if (ns->shm_tot + numpages > ns->shm_ctlall)
+ return -ENOSPC;
+
++ if (!vx_ipcshm_avail(current_vx_info(), numpages))
++ return -ENOSPC;
++
+ shp = ipc_rcu_alloc(sizeof(*shp));
+ if (!shp)
+ return -ENOMEM;
+
+ shp->shm_perm.key = key;
++ shp->shm_perm.xid = vx_current_xid();
+ shp->shm_perm.mode = (shmflg & S_IRWXUGO);
+ shp->mlock_user = NULL;
+
+@@ -413,6 +425,7 @@ static int newseg(struct ipc_namespace *
+ ns->shm_tot += numpages;
+ error = shp->shm_perm.id;
+ shm_unlock(shp);
++ vx_ipcshm_add(current_vx_info(), key, numpages);
+ return error;
+
+ no_id:
+diff -NurpP --minimal linux-3.0.9/kernel/Makefile linux-3.0.9-vs2.3.2.1/kernel/Makefile
+--- linux-3.0.9/kernel/Makefile 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/Makefile 2011-06-10 22:11:24.000000000 +0200
+@@ -24,6 +24,7 @@ CFLAGS_REMOVE_sched_clock.o = -pg
+ CFLAGS_REMOVE_irq_work.o = -pg
+ endif
+
++obj-y += vserver/
+ obj-$(CONFIG_FREEZER) += freezer.o
+ obj-$(CONFIG_PROFILING) += profile.o
+ obj-$(CONFIG_SYSCTL_SYSCALL_CHECK) += sysctl_check.o
+diff -NurpP --minimal linux-3.0.9/kernel/capability.c linux-3.0.9-vs2.3.2.1/kernel/capability.c
+--- linux-3.0.9/kernel/capability.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/capability.c 2011-10-27 13:59:20.000000000 +0200
+@@ -15,6 +15,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/user_namespace.h>
++#include <linux/vs_context.h>
+ #include <asm/uaccess.h>
+
+ /*
+@@ -116,6 +117,7 @@ static int cap_validate_magic(cap_user_h
+ return 0;
+ }
+
++
+ /*
+ * The only thing that can change the capabilities of the current
+ * process is the current process. As such, we can't be in this code
+@@ -340,6 +342,8 @@ bool has_capability_noaudit(struct task_
+ return (ret == 0);
+ }
+
++#include <linux/vserver/base.h>
++
+ /**
+ * capable - Determine if the current task has a superior capability in effect
+ * @cap: The capability to be tested for
+diff -NurpP --minimal linux-3.0.9/kernel/compat.c linux-3.0.9-vs2.3.2.1/kernel/compat.c
+--- linux-3.0.9/kernel/compat.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/compat.c 2011-06-10 22:11:24.000000000 +0200
+@@ -970,7 +970,7 @@ asmlinkage long compat_sys_stime(compat_
+ if (err)
+ return err;
+
+- do_settimeofday(&tv);
++ vx_settimeofday(&tv);
+ return 0;
+ }
+
+diff -NurpP --minimal linux-3.0.9/kernel/cred.c linux-3.0.9-vs2.3.2.1/kernel/cred.c
+--- linux-3.0.9/kernel/cred.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/cred.c 2011-06-10 22:11:24.000000000 +0200
+@@ -61,31 +61,6 @@ struct cred init_cred = {
+ #endif
+ };
+
+-static inline void set_cred_subscribers(struct cred *cred, int n)
+-{
+-#ifdef CONFIG_DEBUG_CREDENTIALS
+- atomic_set(&cred->subscribers, n);
+-#endif
+-}
+-
+-static inline int read_cred_subscribers(const struct cred *cred)
+-{
+-#ifdef CONFIG_DEBUG_CREDENTIALS
+- return atomic_read(&cred->subscribers);
+-#else
+- return 0;
+-#endif
+-}
+-
+-static inline void alter_cred_subscribers(const struct cred *_cred, int n)
+-{
+-#ifdef CONFIG_DEBUG_CREDENTIALS
+- struct cred *cred = (struct cred *) _cred;
+-
+- atomic_add(n, &cred->subscribers);
+-#endif
+-}
+-
+ /*
+ * Dispose of the shared task group credentials
+ */
+@@ -281,21 +256,16 @@ error:
+ *
+ * Call commit_creds() or abort_creds() to clean up.
+ */
+-struct cred *prepare_creds(void)
++struct cred *__prepare_creds(const struct cred *old)
+ {
+- struct task_struct *task = current;
+- const struct cred *old;
+ struct cred *new;
+
+- validate_process_creds();
+-
+ new = kmem_cache_alloc(cred_jar, GFP_KERNEL);
+ if (!new)
+ return NULL;
+
+ kdebug("prepare_creds() alloc %p", new);
+
+- old = task->cred;
+ memcpy(new, old, sizeof(struct cred));
+
+ atomic_set(&new->usage, 1);
+@@ -322,6 +292,13 @@ error:
+ abort_creds(new);
+ return NULL;
+ }
++
++struct cred *prepare_creds(void)
++{
++ validate_process_creds();
++
++ return __prepare_creds(current->cred);
++}
+ EXPORT_SYMBOL(prepare_creds);
+
+ /*
+diff -NurpP --minimal linux-3.0.9/kernel/exit.c linux-3.0.9-vs2.3.2.1/kernel/exit.c
+--- linux-3.0.9/kernel/exit.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/exit.c 2011-06-22 12:39:15.000000000 +0200
+@@ -48,6 +48,10 @@
+ #include <linux/fs_struct.h>
+ #include <linux/init_task.h>
+ #include <linux/perf_event.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_pid.h>
+ #include <trace/events/sched.h>
+ #include <linux/hw_breakpoint.h>
+ #include <linux/oom.h>
+@@ -494,9 +498,11 @@ static void close_files(struct files_str
+ filp_close(file, files);
+ cond_resched();
+ }
++ vx_openfd_dec(i);
+ }
+ i++;
+ set >>= 1;
++ cond_resched();
+ }
+ }
+ }
+@@ -1047,11 +1053,16 @@ NORET_TYPE void do_exit(long code)
+
+ validate_creds_for_do_exit(tsk);
+
++ /* needs to stay after exit_notify() */
++ exit_vx_info(tsk, code);
++ exit_nx_info(tsk);
++
+ preempt_disable();
+ exit_rcu();
+ /* causes final put_task_struct in finish_task_switch(). */
+ tsk->state = TASK_DEAD;
+ schedule();
++ printk("bad task: %p [%lx]\n", current, current->state);
+ BUG();
+ /* Avoid "noreturn function does return". */
+ for (;;)
+diff -NurpP --minimal linux-3.0.9/kernel/fork.c linux-3.0.9-vs2.3.2.1/kernel/fork.c
+--- linux-3.0.9/kernel/fork.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/fork.c 2011-06-10 22:21:02.000000000 +0200
+@@ -67,6 +67,10 @@
+ #include <linux/user-return-notifier.h>
+ #include <linux/oom.h>
+ #include <linux/khugepaged.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_memory.h>
+
+ #include <asm/pgtable.h>
+ #include <asm/pgalloc.h>
+@@ -167,6 +171,8 @@ void free_task(struct task_struct *tsk)
+ account_kernel_stack(tsk->stack, -1);
+ free_thread_info(tsk->stack);
+ rt_mutex_debug_task_free(tsk);
++ clr_vx_info(&tsk->vx_info);
++ clr_nx_info(&tsk->nx_info);
+ ftrace_graph_exit_task(tsk);
+ free_task_struct(tsk);
+ }
+@@ -505,6 +511,7 @@ static struct mm_struct * mm_init(struct
+ if (likely(!mm_alloc_pgd(mm))) {
+ mm->def_flags = 0;
+ mmu_notifier_mm_init(mm);
++ set_vx_info(&mm->mm_vx_info, p->vx_info);
+ return mm;
+ }
+
+@@ -542,6 +549,7 @@ void __mmdrop(struct mm_struct *mm)
+ #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ VM_BUG_ON(mm->pmd_huge_pte);
+ #endif
++ clr_vx_info(&mm->mm_vx_info);
+ free_mm(mm);
+ }
+ EXPORT_SYMBOL_GPL(__mmdrop);
+@@ -729,6 +737,7 @@ struct mm_struct *dup_mm(struct task_str
+ goto fail_nomem;
+
+ memcpy(mm, oldmm, sizeof(*mm));
++ mm->mm_vx_info = NULL;
+ mm_init_cpumask(mm);
+
+ /* Initializing for Swap token stuff */
+@@ -772,6 +781,7 @@ fail_nocontext:
+ * If init_new_context() failed, we cannot use mmput() to free the mm
+ * because it calls destroy_context()
+ */
++ clr_vx_info(&mm->mm_vx_info);
+ mm_free_pgd(mm);
+ free_mm(mm);
+ return NULL;
+@@ -1057,6 +1067,8 @@ static struct task_struct *copy_process(
+ int retval;
+ struct task_struct *p;
+ int cgroup_callbacks_done = 0;
++ struct vx_info *vxi;
++ struct nx_info *nxi;
+
+ if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
+ return ERR_PTR(-EINVAL);
+@@ -1103,7 +1115,12 @@ static struct task_struct *copy_process(
+ DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled);
+ DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
+ #endif
++ init_vx_info(&p->vx_info, current_vx_info());
++ init_nx_info(&p->nx_info, current_nx_info());
++
+ retval = -EAGAIN;
++ if (!vx_nproc_avail(1))
++ goto bad_fork_free;
+ if (atomic_read(&p->real_cred->user->processes) >=
+ task_rlimit(p, RLIMIT_NPROC)) {
+ if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
+@@ -1360,6 +1377,18 @@ static struct task_struct *copy_process(
+
+ total_forks++;
+ spin_unlock(&current->sighand->siglock);
++
++ /* p is copy of current */
++ vxi = p->vx_info;
++ if (vxi) {
++ claim_vx_info(vxi, p);
++ atomic_inc(&vxi->cvirt.nr_threads);
++ atomic_inc(&vxi->cvirt.total_forks);
++ vx_nproc_inc(p);
++ }
++ nxi = p->nx_info;
++ if (nxi)
++ claim_nx_info(nxi, p);
+ write_unlock_irq(&tasklist_lock);
+ proc_fork_connector(p);
+ cgroup_post_fork(p);
+diff -NurpP --minimal linux-3.0.9/kernel/kthread.c linux-3.0.9-vs2.3.2.1/kernel/kthread.c
+--- linux-3.0.9/kernel/kthread.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/kthread.c 2011-06-10 22:11:24.000000000 +0200
+@@ -16,6 +16,7 @@
+ #include <linux/mutex.h>
+ #include <linux/slab.h>
+ #include <linux/freezer.h>
++#include <linux/vs_pid.h>
+ #include <trace/events/sched.h>
+
+ static DEFINE_SPINLOCK(kthread_create_lock);
+diff -NurpP --minimal linux-3.0.9/kernel/nsproxy.c linux-3.0.9-vs2.3.2.1/kernel/nsproxy.c
+--- linux-3.0.9/kernel/nsproxy.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/nsproxy.c 2011-06-13 14:09:44.000000000 +0200
+@@ -20,6 +20,8 @@
+ #include <linux/mnt_namespace.h>
+ #include <linux/utsname.h>
+ #include <linux/pid_namespace.h>
++#include <linux/vserver/global.h>
++#include <linux/vserver/debug.h>
+ #include <net/net_namespace.h>
+ #include <linux/ipc_namespace.h>
+ #include <linux/proc_fs.h>
+@@ -46,8 +48,11 @@ static inline struct nsproxy *create_nsp
+ struct nsproxy *nsproxy;
+
+ nsproxy = kmem_cache_alloc(nsproxy_cachep, GFP_KERNEL);
+- if (nsproxy)
++ if (nsproxy) {
+ atomic_set(&nsproxy->count, 1);
++ atomic_inc(&vs_global_nsproxy);
++ }
++ vxdprintk(VXD_CBIT(space, 2), "create_nsproxy = %p[1]", nsproxy);
+ return nsproxy;
+ }
+
+@@ -56,8 +61,11 @@ static inline struct nsproxy *create_nsp
+ * Return the newly created nsproxy. Do not attach this to the task,
+ * leave it to the caller to do proper locking and attach it to task.
+ */
+-static struct nsproxy *create_new_namespaces(unsigned long flags,
+- struct task_struct *tsk, struct fs_struct *new_fs)
++static struct nsproxy *unshare_namespaces(unsigned long flags,
++ struct nsproxy *orig,
++ struct fs_struct *new_fs,
++ struct user_namespace *new_user,
++ struct pid_namespace *new_pid)
+ {
+ struct nsproxy *new_nsp;
+ int err;
+@@ -66,31 +74,31 @@ static struct nsproxy *create_new_namesp
+ if (!new_nsp)
+ return ERR_PTR(-ENOMEM);
+
+- new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, new_fs);
++ new_nsp->mnt_ns = copy_mnt_ns(flags, orig->mnt_ns, new_fs);
+ if (IS_ERR(new_nsp->mnt_ns)) {
+ err = PTR_ERR(new_nsp->mnt_ns);
+ goto out_ns;
+ }
+
+- new_nsp->uts_ns = copy_utsname(flags, tsk);
++ new_nsp->uts_ns = copy_utsname(flags, orig->uts_ns, new_user);
+ if (IS_ERR(new_nsp->uts_ns)) {
+ err = PTR_ERR(new_nsp->uts_ns);
+ goto out_uts;
+ }
+
+- new_nsp->ipc_ns = copy_ipcs(flags, tsk);
++ new_nsp->ipc_ns = copy_ipcs(flags, orig->ipc_ns, new_user);
+ if (IS_ERR(new_nsp->ipc_ns)) {
+ err = PTR_ERR(new_nsp->ipc_ns);
+ goto out_ipc;
+ }
+
+- new_nsp->pid_ns = copy_pid_ns(flags, task_active_pid_ns(tsk));
++ new_nsp->pid_ns = copy_pid_ns(flags, new_pid);
+ if (IS_ERR(new_nsp->pid_ns)) {
+ err = PTR_ERR(new_nsp->pid_ns);
+ goto out_pid;
+ }
+
+- new_nsp->net_ns = copy_net_ns(flags, tsk->nsproxy->net_ns);
++ new_nsp->net_ns = copy_net_ns(flags, orig->net_ns);
+ if (IS_ERR(new_nsp->net_ns)) {
+ err = PTR_ERR(new_nsp->net_ns);
+ goto out_net;
+@@ -115,6 +123,40 @@ out_ns:
+ return ERR_PTR(err);
+ }
+
++static struct nsproxy *create_new_namespaces(unsigned long flags,
++ struct task_struct *tsk, struct fs_struct *new_fs)
++{
++ return unshare_namespaces(flags, tsk->nsproxy,
++ new_fs, task_cred_xxx(tsk, user)->user_ns,
++ task_active_pid_ns(tsk));
++}
++
++/*
++ * copies the nsproxy, setting refcount to 1, and grabbing a
++ * reference to all contained namespaces.
++ */
++struct nsproxy *copy_nsproxy(struct nsproxy *orig)
++{
++ struct nsproxy *ns = create_nsproxy();
++
++ if (ns) {
++ memcpy(ns, orig, sizeof(struct nsproxy));
++ atomic_set(&ns->count, 1);
++
++ if (ns->mnt_ns)
++ get_mnt_ns(ns->mnt_ns);
++ if (ns->uts_ns)
++ get_uts_ns(ns->uts_ns);
++ if (ns->ipc_ns)
++ get_ipc_ns(ns->ipc_ns);
++ if (ns->pid_ns)
++ get_pid_ns(ns->pid_ns);
++ if (ns->net_ns)
++ get_net(ns->net_ns);
++ }
++ return ns;
++}
++
+ /*
+ * called from clone. This now handles copy for nsproxy and all
+ * namespaces therein.
+@@ -122,9 +164,12 @@ out_ns:
+ int copy_namespaces(unsigned long flags, struct task_struct *tsk)
+ {
+ struct nsproxy *old_ns = tsk->nsproxy;
+- struct nsproxy *new_ns;
++ struct nsproxy *new_ns = NULL;
+ int err = 0;
+
++ vxdprintk(VXD_CBIT(space, 7), "copy_namespaces(0x%08lx,%p[%p])",
++ flags, tsk, old_ns);
++
+ if (!old_ns)
+ return 0;
+
+@@ -134,7 +179,7 @@ int copy_namespaces(unsigned long flags,
+ CLONE_NEWPID | CLONE_NEWNET)))
+ return 0;
+
+- if (!capable(CAP_SYS_ADMIN)) {
++ if (!vx_can_unshare(CAP_SYS_ADMIN, flags)) {
+ err = -EPERM;
+ goto out;
+ }
+@@ -161,6 +206,9 @@ int copy_namespaces(unsigned long flags,
+
+ out:
+ put_nsproxy(old_ns);
++ vxdprintk(VXD_CBIT(space, 3),
++ "copy_namespaces(0x%08lx,%p[%p]) = %d [%p]",
++ flags, tsk, old_ns, err, new_ns);
+ return err;
+ }
+
+@@ -174,7 +222,9 @@ void free_nsproxy(struct nsproxy *ns)
+ put_ipc_ns(ns->ipc_ns);
+ if (ns->pid_ns)
+ put_pid_ns(ns->pid_ns);
+- put_net(ns->net_ns);
++ if (ns->net_ns)
++ put_net(ns->net_ns);
++ atomic_dec(&vs_global_nsproxy);
+ kmem_cache_free(nsproxy_cachep, ns);
+ }
+
+@@ -187,11 +237,15 @@ int unshare_nsproxy_namespaces(unsigned
+ {
+ int err = 0;
+
++ vxdprintk(VXD_CBIT(space, 4),
++ "unshare_nsproxy_namespaces(0x%08lx,[%p])",
++ unshare_flags, current->nsproxy);
++
+ if (!(unshare_flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC |
+ CLONE_NEWNET)))
+ return 0;
+
+- if (!capable(CAP_SYS_ADMIN))
++ if (!vx_can_unshare(CAP_SYS_ADMIN, unshare_flags))
+ return -EPERM;
+
+ *new_nsp = create_new_namespaces(unshare_flags, current,
+diff -NurpP --minimal linux-3.0.9/kernel/pid.c linux-3.0.9-vs2.3.2.1/kernel/pid.c
+--- linux-3.0.9/kernel/pid.c 2011-05-22 16:17:59.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/pid.c 2011-06-10 22:11:24.000000000 +0200
+@@ -36,6 +36,7 @@
+ #include <linux/pid_namespace.h>
+ #include <linux/init_task.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_pid.h>
+
+ #define pid_hashfn(nr, ns) \
+ hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift)
+@@ -342,7 +343,7 @@ EXPORT_SYMBOL_GPL(find_pid_ns);
+
+ struct pid *find_vpid(int nr)
+ {
+- return find_pid_ns(nr, current->nsproxy->pid_ns);
++ return find_pid_ns(vx_rmap_pid(nr), current->nsproxy->pid_ns);
+ }
+ EXPORT_SYMBOL_GPL(find_vpid);
+
+@@ -402,6 +403,9 @@ void transfer_pid(struct task_struct *ol
+ struct task_struct *pid_task(struct pid *pid, enum pid_type type)
+ {
+ struct task_struct *result = NULL;
++
++ if (type == PIDTYPE_REALPID)
++ type = PIDTYPE_PID;
+ if (pid) {
+ struct hlist_node *first;
+ first = rcu_dereference_check(hlist_first_rcu(&pid->tasks[type]),
+@@ -420,7 +424,7 @@ EXPORT_SYMBOL(pid_task);
+ struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
+ {
+ rcu_lockdep_assert(rcu_read_lock_held());
+- return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
++ return pid_task(find_pid_ns(vx_rmap_pid(nr), ns), PIDTYPE_PID);
+ }
+
+ struct task_struct *find_task_by_vpid(pid_t vnr)
+@@ -464,7 +468,7 @@ struct pid *find_get_pid(pid_t nr)
+ }
+ EXPORT_SYMBOL_GPL(find_get_pid);
+
+-pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
++pid_t pid_unmapped_nr_ns(struct pid *pid, struct pid_namespace *ns)
+ {
+ struct upid *upid;
+ pid_t nr = 0;
+@@ -477,6 +481,11 @@ pid_t pid_nr_ns(struct pid *pid, struct
+ return nr;
+ }
+
++pid_t pid_nr_ns(struct pid *pid, struct pid_namespace *ns)
++{
++ return vx_map_pid(pid_unmapped_nr_ns(pid, ns));
++}
++
+ pid_t pid_vnr(struct pid *pid)
+ {
+ return pid_nr_ns(pid, current->nsproxy->pid_ns);
+diff -NurpP --minimal linux-3.0.9/kernel/pid_namespace.c linux-3.0.9-vs2.3.2.1/kernel/pid_namespace.c
+--- linux-3.0.9/kernel/pid_namespace.c 2011-05-22 16:17:59.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/pid_namespace.c 2011-06-10 22:17:45.000000000 +0200
+@@ -15,6 +15,7 @@
+ #include <linux/acct.h>
+ #include <linux/slab.h>
+ #include <linux/proc_fs.h>
++#include <linux/vserver/global.h>
+
+ #define BITS_PER_PAGE (PAGE_SIZE*8)
+
+@@ -88,6 +89,7 @@ static struct pid_namespace *create_pid_
+ goto out_free_map;
+
+ kref_init(&ns->kref);
++ atomic_inc(&vs_global_pid_ns);
+ ns->level = level;
+ ns->parent = get_pid_ns(parent_pid_ns);
+
+@@ -119,6 +121,7 @@ static void destroy_pid_namespace(struct
+
+ for (i = 0; i < PIDMAP_ENTRIES; i++)
+ kfree(ns->pidmap[i].page);
++ atomic_dec(&vs_global_pid_ns);
+ kmem_cache_free(pid_ns_cachep, ns);
+ }
+
+diff -NurpP --minimal linux-3.0.9/kernel/posix-timers.c linux-3.0.9-vs2.3.2.1/kernel/posix-timers.c
+--- linux-3.0.9/kernel/posix-timers.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/posix-timers.c 2011-06-10 22:11:24.000000000 +0200
+@@ -47,6 +47,7 @@
+ #include <linux/wait.h>
+ #include <linux/workqueue.h>
+ #include <linux/module.h>
++#include <linux/vs_context.h>
+
+ /*
+ * Management arrays for POSIX timers. Timers are kept in slab memory
+@@ -340,6 +341,7 @@ int posix_timer_event(struct k_itimer *t
+ {
+ struct task_struct *task;
+ int shared, ret = -1;
++
+ /*
+ * FIXME: if ->sigq is queued we can race with
+ * dequeue_signal()->do_schedule_next_timer().
+@@ -356,10 +358,18 @@ int posix_timer_event(struct k_itimer *t
+ rcu_read_lock();
+ task = pid_task(timr->it_pid, PIDTYPE_PID);
+ if (task) {
++ struct vx_info_save vxis;
++ struct vx_info *vxi;
++
++ vxi = get_vx_info(task->vx_info);
++ enter_vx_info(vxi, &vxis);
+ shared = !(timr->it_sigev_notify & SIGEV_THREAD_ID);
+ ret = send_sigqueue(timr->sigq, task, shared);
++ leave_vx_info(&vxis);
++ put_vx_info(vxi);
+ }
+ rcu_read_unlock();
++
+ /* If we failed to send the signal the timer stops. */
+ return ret > 0;
+ }
+diff -NurpP --minimal linux-3.0.9/kernel/printk.c linux-3.0.9-vs2.3.2.1/kernel/printk.c
+--- linux-3.0.9/kernel/printk.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/printk.c 2011-10-18 13:51:13.000000000 +0200
+@@ -41,6 +41,7 @@
+ #include <linux/cpu.h>
+ #include <linux/notifier.h>
+ #include <linux/rculist.h>
++#include <linux/vs_cvirt.h>
+
+ #include <asm/uaccess.h>
+
+@@ -314,7 +315,7 @@ static int check_syslog_permissions(int
+ return 0;
+
+ if (syslog_action_restricted(type)) {
+- if (capable(CAP_SYSLOG))
++ if (vx_capable(CAP_SYSLOG, VXC_SYSLOG))
+ return 0;
+ /* For historical reasons, accept CAP_SYS_ADMIN too, with a warning */
+ if (capable(CAP_SYS_ADMIN)) {
+@@ -342,12 +343,9 @@ int do_syslog(int type, char __user *buf
+ if (error)
+ return error;
+
+- switch (type) {
+- case SYSLOG_ACTION_CLOSE: /* Close log */
+- break;
+- case SYSLOG_ACTION_OPEN: /* Open log */
+- break;
+- case SYSLOG_ACTION_READ: /* Read from log */
++ if ((type == SYSLOG_ACTION_READ) ||
++ (type == SYSLOG_ACTION_READ_ALL) ||
++ (type == SYSLOG_ACTION_READ_CLEAR)) {
+ error = -EINVAL;
+ if (!buf || len < 0)
+ goto out;
+@@ -358,6 +356,16 @@ int do_syslog(int type, char __user *buf
+ error = -EFAULT;
+ goto out;
+ }
++ }
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ return vx_do_syslog(type, buf, len);
++
++ switch (type) {
++ case SYSLOG_ACTION_CLOSE: /* Close log */
++ break;
++ case SYSLOG_ACTION_OPEN: /* Open log */
++ break;
++ case SYSLOG_ACTION_READ: /* Read from log */
+ error = wait_event_interruptible(log_wait,
+ (log_start - log_end));
+ if (error)
+@@ -384,16 +392,6 @@ int do_syslog(int type, char __user *buf
+ /* FALL THRU */
+ /* Read last kernel messages */
+ case SYSLOG_ACTION_READ_ALL:
+- error = -EINVAL;
+- if (!buf || len < 0)
+- goto out;
+- error = 0;
+- if (!len)
+- goto out;
+- if (!access_ok(VERIFY_WRITE, buf, len)) {
+- error = -EFAULT;
+- goto out;
+- }
+ count = len;
+ if (count > log_buf_len)
+ count = log_buf_len;
+diff -NurpP --minimal linux-3.0.9/kernel/ptrace.c linux-3.0.9-vs2.3.2.1/kernel/ptrace.c
+--- linux-3.0.9/kernel/ptrace.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/ptrace.c 2011-10-27 16:12:46.000000000 +0200
+@@ -22,6 +22,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/uaccess.h>
+ #include <linux/regset.h>
++#include <linux/vs_context.h>
+ #include <linux/hw_breakpoint.h>
+
+
+@@ -145,9 +146,15 @@ int __ptrace_may_access(struct task_stru
+ * or halting the specified task is impossible.
+ */
+ int dumpable = 0;
++
+ /* Don't let security modules deny introspection */
+ if (task == current)
+ return 0;
++
++ vxdprintk(VXD_CBIT(perm, 8),
++ "__ptrace_may_access(%p[#%d,%d,%d], %d)",
++ task, task->xid, task->pid, task->tgid, mode);
++
+ rcu_read_lock();
+ tcred = __task_cred(task);
+ if (cred->user->user_ns == tcred->user->user_ns &&
+@@ -161,6 +168,8 @@ int __ptrace_may_access(struct task_stru
+ if (ns_capable(tcred->user->user_ns, CAP_SYS_PTRACE))
+ goto ok;
+ rcu_read_unlock();
++ vxdprintk(VXD_CBIT(perm, 8),
++ "__ptrace_may_access(%p) cred/cap failed", task);
+ return -EPERM;
+ ok:
+ rcu_read_unlock();
+@@ -169,6 +178,24 @@ ok:
+ dumpable = get_dumpable(task->mm);
+ if (!dumpable && !task_ns_capable(task, CAP_SYS_PTRACE))
+ return -EPERM;
++ vxdprintk(VXD_CBIT(perm, 8),
++ "__ptrace_may_access(%p) cap/dump ok", task);
++
++ if (!vx_check(task->xid, VS_ADMIN_P|VS_WATCH_P|VS_IDENT))
++ return -EPERM;
++ vxdprintk(VXD_CBIT(perm, 8),
++ "__ptrace_may_access(%p) check ok", task);
++
++ printk("%d,%d %d,%d\n",
++ vx_check(task->xid, VS_IDENT),
++ task_vx_flags(task, VXF_STATE_ADMIN, 0),
++ current->xid, task->xid);
++
++ if (!vx_check(task->xid, VS_IDENT) &&
++ !task_vx_flags(task, VXF_STATE_ADMIN, 0))
++ return -EACCES;
++ vxdprintk(VXD_CBIT(perm, 8),
++ "__ptrace_may_access(%p) admin ok", task);
+
+ return security_ptrace_access_check(task, mode);
+ }
+diff -NurpP --minimal linux-3.0.9/kernel/sched.c linux-3.0.9-vs2.3.2.1/kernel/sched.c
+--- linux-3.0.9/kernel/sched.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/sched.c 2011-10-18 13:51:13.000000000 +0200
+@@ -71,6 +71,8 @@
+ #include <linux/ctype.h>
+ #include <linux/ftrace.h>
+ #include <linux/slab.h>
++#include <linux/vs_sched.h>
++#include <linux/vs_cvirt.h>
+
+ #include <asm/tlb.h>
+ #include <asm/irq_regs.h>
+@@ -3461,9 +3463,17 @@ static void calc_global_nohz(unsigned lo
+ */
+ void get_avenrun(unsigned long *loads, unsigned long offset, int shift)
+ {
+- loads[0] = (avenrun[0] + offset) << shift;
+- loads[1] = (avenrun[1] + offset) << shift;
+- loads[2] = (avenrun[2] + offset) << shift;
++ if (vx_flags(VXF_VIRT_LOAD, 0)) {
++ struct vx_info *vxi = current_vx_info();
++
++ loads[0] = (vxi->cvirt.load[0] + offset) << shift;
++ loads[1] = (vxi->cvirt.load[1] + offset) << shift;
++ loads[2] = (vxi->cvirt.load[2] + offset) << shift;
++ } else {
++ loads[0] = (avenrun[0] + offset) << shift;
++ loads[1] = (avenrun[1] + offset) << shift;
++ loads[2] = (avenrun[2] + offset) << shift;
++ }
+ }
+
+ /*
+@@ -3722,16 +3732,19 @@ void account_user_time(struct task_struc
+ cputime_t cputime_scaled)
+ {
+ struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
+ cputime64_t tmp;
++ int nice = (TASK_NICE(p) > 0);
+
+ /* Add user time to process. */
+ p->utime = cputime_add(p->utime, cputime);
+ p->utimescaled = cputime_add(p->utimescaled, cputime_scaled);
++ vx_account_user(vxi, cputime, nice);
+ account_group_user_time(p, cputime);
+
+ /* Add user time to cpustat. */
+ tmp = cputime_to_cputime64(cputime);
+- if (TASK_NICE(p) > 0)
++ if (nice)
+ cpustat->nice = cputime64_add(cpustat->nice, tmp);
+ else
+ cpustat->user = cputime64_add(cpustat->user, tmp);
+@@ -3783,10 +3796,12 @@ void __account_system_time(struct task_s
+ cputime_t cputime_scaled, cputime64_t *target_cputime64)
+ {
+ cputime64_t tmp = cputime_to_cputime64(cputime);
++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
+
+ /* Add system time to process. */
+ p->stime = cputime_add(p->stime, cputime);
+ p->stimescaled = cputime_add(p->stimescaled, cputime_scaled);
++ vx_account_system(vxi, cputime, 0 /* do we have idle time? */);
+ account_group_system_time(p, cputime);
+
+ /* Add system time to cpustat. */
+@@ -4954,7 +4969,7 @@ SYSCALL_DEFINE1(nice, int, increment)
+ nice = 19;
+
+ if (increment < 0 && !can_nice(current, nice))
+- return -EPERM;
++ return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM;
+
+ retval = security_task_setnice(current, nice);
+ if (retval)
+diff -NurpP --minimal linux-3.0.9/kernel/sched_fair.c linux-3.0.9-vs2.3.2.1/kernel/sched_fair.c
+--- linux-3.0.9/kernel/sched_fair.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/sched_fair.c 2011-07-22 11:20:39.000000000 +0200
+@@ -998,6 +998,8 @@ enqueue_entity(struct cfs_rq *cfs_rq, st
+ __enqueue_entity(cfs_rq, se);
+ se->on_rq = 1;
+
++ if (entity_is_task(se))
++ vx_activate_task(task_of(se));
+ if (cfs_rq->nr_running == 1)
+ list_add_leaf_cfs_rq(cfs_rq);
+ }
+@@ -1074,6 +1076,8 @@ dequeue_entity(struct cfs_rq *cfs_rq, st
+ if (se != cfs_rq->curr)
+ __dequeue_entity(cfs_rq, se);
+ se->on_rq = 0;
++ if (entity_is_task(se))
++ vx_deactivate_task(task_of(se));
+ update_cfs_load(cfs_rq, 0);
+ account_entity_dequeue(cfs_rq, se);
+
+diff -NurpP --minimal linux-3.0.9/kernel/signal.c linux-3.0.9-vs2.3.2.1/kernel/signal.c
+--- linux-3.0.9/kernel/signal.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/signal.c 2011-11-15 17:37:07.000000000 +0100
+@@ -28,6 +28,8 @@
+ #include <linux/freezer.h>
+ #include <linux/pid_namespace.h>
+ #include <linux/nsproxy.h>
++#include <linux/vs_context.h>
++#include <linux/vs_pid.h>
+ #define CREATE_TRACE_POINTS
+ #include <trace/events/signal.h>
+
+@@ -744,9 +746,18 @@ static int check_kill_permission(int sig
+ struct pid *sid;
+ int error;
+
++ vxdprintk(VXD_CBIT(misc, 7),
++ "check_kill_permission(%d,%p,%p[#%u,%u])",
++ sig, info, t, vx_task_xid(t), t->pid);
++
+ if (!valid_signal(sig))
+ return -EINVAL;
+
++/* FIXME: needed? if so, why?
++ if ((info != SEND_SIG_NOINFO) &&
++ (is_si_special(info) || !si_fromuser(info)))
++ goto skip; */
++
+ if (!si_fromuser(info))
+ return 0;
+
+@@ -770,6 +781,20 @@ static int check_kill_permission(int sig
+ }
+ }
+
++ error = -EPERM;
++ if (t->pid == 1 && current->xid)
++ return error;
++
++ error = -ESRCH;
++ /* FIXME: we shouldn't return ESRCH ever, to avoid
++ loops, maybe ENOENT or EACCES? */
++ if (!vx_check(vx_task_xid(t), VS_WATCH_P | VS_IDENT)) {
++ vxdprintk(current->xid || VXD_CBIT(misc, 7),
++ "signal %d[%p] xid mismatch %p[#%u,%u] xid=#%u",
++ sig, info, t, vx_task_xid(t), t->pid, current->xid);
++ return error;
++ }
++/* skip: */
+ return security_task_kill(t, info, sig, 0);
+ }
+
+@@ -1246,7 +1271,7 @@ int kill_pid_info(int sig, struct siginf
+ rcu_read_lock();
+ retry:
+ p = pid_task(pid, PIDTYPE_PID);
+- if (p) {
++ if (p && vx_check(vx_task_xid(p), VS_IDENT)) {
+ error = group_send_sig_info(sig, info, p);
+ if (unlikely(error == -ESRCH))
+ /*
+@@ -1285,7 +1310,7 @@ int kill_pid_info_as_uid(int sig, struct
+
+ rcu_read_lock();
+ p = pid_task(pid, PIDTYPE_PID);
+- if (!p) {
++ if (!p || !vx_check(vx_task_xid(p), VS_IDENT)) {
+ ret = -ESRCH;
+ goto out_unlock;
+ }
+@@ -1340,8 +1365,10 @@ static int kill_something_info(int sig,
+ struct task_struct * p;
+
+ for_each_process(p) {
+- if (task_pid_vnr(p) > 1 &&
+- !same_thread_group(p, current)) {
++ if (vx_check(vx_task_xid(p), VS_ADMIN|VS_IDENT) &&
++ task_pid_vnr(p) > 1 &&
++ !same_thread_group(p, current) &&
++ !vx_current_initpid(p->pid)) {
+ int err = group_send_sig_info(sig, info, p);
+ ++count;
+ if (err != -EPERM)
+@@ -2138,6 +2165,11 @@ relock:
+ !sig_kernel_only(signr))
+ continue;
+
++ /* virtual init is protected against user signals */
++ if ((info->si_code == SI_USER) &&
++ vx_current_initpid(current->pid))
++ continue;
++
+ if (sig_kernel_stop(signr)) {
+ /*
+ * The default action is to stop all threads in
+diff -NurpP --minimal linux-3.0.9/kernel/softirq.c linux-3.0.9-vs2.3.2.1/kernel/softirq.c
+--- linux-3.0.9/kernel/softirq.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/softirq.c 2011-07-22 11:20:39.000000000 +0200
+@@ -24,6 +24,7 @@
+ #include <linux/ftrace.h>
+ #include <linux/smp.h>
+ #include <linux/tick.h>
++#include <linux/vs_context.h>
+
+ #define CREATE_TRACE_POINTS
+ #include <trace/events/irq.h>
+diff -NurpP --minimal linux-3.0.9/kernel/sys.c linux-3.0.9-vs2.3.2.1/kernel/sys.c
+--- linux-3.0.9/kernel/sys.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/sys.c 2011-11-15 17:37:07.000000000 +0100
+@@ -45,6 +45,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/kprobes.h>
+ #include <linux/user_namespace.h>
++#include <linux/vs_pid.h>
+
+ #include <linux/kmsg_dump.h>
+ /* Move somewhere else to avoid recompiling? */
+@@ -155,7 +156,10 @@ static int set_one_prio(struct task_stru
+ goto out;
+ }
+ if (niceval < task_nice(p) && !can_nice(p, niceval)) {
+- error = -EACCES;
++ if (vx_flags(VXF_IGNEG_NICE, 0))
++ error = 0;
++ else
++ error = -EACCES;
+ goto out;
+ }
+ no_nice = security_task_setnice(p, niceval);
+@@ -205,6 +209,8 @@ SYSCALL_DEFINE3(setpriority, int, which,
+ else
+ pgrp = task_pgrp(current);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ error = set_one_prio(p, niceval, error);
+ } while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+ break;
+@@ -268,6 +274,8 @@ SYSCALL_DEFINE2(getpriority, int, which,
+ else
+ pgrp = task_pgrp(current);
+ do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
++ if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
++ continue;
+ niceval = 20 - task_nice(p);
+ if (niceval > retval)
+ retval = niceval;
+@@ -387,6 +395,8 @@ EXPORT_SYMBOL_GPL(kernel_power_off);
+
+ static DEFINE_MUTEX(reboot_mutex);
+
++long vs_reboot(unsigned int, void __user *);
++
+ /*
+ * Reboot system call: for obvious reasons only root may call it,
+ * and even root needs to set up some magic numbers in the registers
+@@ -419,6 +429,9 @@ SYSCALL_DEFINE4(reboot, int, magic1, int
+ if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
+ cmd = LINUX_REBOOT_CMD_HALT;
+
++ if (!vx_check(0, VS_ADMIN|VS_WATCH))
++ return vs_reboot(cmd, arg);
++
+ mutex_lock(&reboot_mutex);
+ switch (cmd) {
+ case LINUX_REBOOT_CMD_RESTART:
+@@ -1235,7 +1248,8 @@ SYSCALL_DEFINE2(sethostname, char __user
+ int errno;
+ char tmp[__NEW_UTS_LEN];
+
+- if (!ns_capable(current->nsproxy->uts_ns->user_ns, CAP_SYS_ADMIN))
++ if (!vx_ns_capable(current->nsproxy->uts_ns->user_ns,
++ CAP_SYS_ADMIN, VXC_SET_UTSNAME))
+ return -EPERM;
+
+ if (len < 0 || len > __NEW_UTS_LEN)
+@@ -1285,7 +1299,8 @@ SYSCALL_DEFINE2(setdomainname, char __us
+ int errno;
+ char tmp[__NEW_UTS_LEN];
+
+- if (!ns_capable(current->nsproxy->uts_ns->user_ns, CAP_SYS_ADMIN))
++ if (!vx_ns_capable(current->nsproxy->uts_ns->user_ns,
++ CAP_SYS_ADMIN, VXC_SET_UTSNAME))
+ return -EPERM;
+ if (len < 0 || len > __NEW_UTS_LEN)
+ return -EINVAL;
+@@ -1403,7 +1418,7 @@ int do_prlimit(struct task_struct *tsk,
+ /* Keep the capable check against init_user_ns until
+ cgroups can contain all limits */
+ if (new_rlim->rlim_max > rlim->rlim_max &&
+- !capable(CAP_SYS_RESOURCE))
++ !vx_capable(CAP_SYS_RESOURCE, VXC_SET_RLIMIT))
+ retval = -EPERM;
+ if (!retval)
+ retval = security_task_setrlimit(tsk->group_leader,
+@@ -1457,7 +1472,8 @@ static int check_prlimit_permission(stru
+ cred->gid == tcred->sgid &&
+ cred->gid == tcred->gid))
+ return 0;
+- if (ns_capable(tcred->user->user_ns, CAP_SYS_RESOURCE))
++ if (vx_ns_capable(tcred->user->user_ns,
++ CAP_SYS_RESOURCE, VXC_SET_RLIMIT))
+ return 0;
+
+ return -EPERM;
+diff -NurpP --minimal linux-3.0.9/kernel/sysctl.c linux-3.0.9-vs2.3.2.1/kernel/sysctl.c
+--- linux-3.0.9/kernel/sysctl.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/sysctl.c 2011-06-15 02:40:14.000000000 +0200
+@@ -75,6 +75,7 @@
+ #if defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_LOCK_STAT)
+ #include <linux/lockdep.h>
+ #endif
++extern char vshelper_path[];
+ #ifdef CONFIG_CHR_DEV_SG
+ #include <scsi/sg.h>
+ #endif
+@@ -568,6 +569,13 @@ static struct ctl_table kern_table[] = {
+ .proc_handler = proc_dostring,
+ },
+ #endif
++ {
++ .procname = "vshelper",
++ .data = &vshelper_path,
++ .maxlen = 256,
++ .mode = 0644,
++ .proc_handler = &proc_dostring,
++ },
+ #ifdef CONFIG_CHR_DEV_SG
+ {
+ .procname = "sg-big-buff",
+diff -NurpP --minimal linux-3.0.9/kernel/sysctl_binary.c linux-3.0.9-vs2.3.2.1/kernel/sysctl_binary.c
+--- linux-3.0.9/kernel/sysctl_binary.c 2011-05-22 16:17:59.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/sysctl_binary.c 2011-06-10 22:11:24.000000000 +0200
+@@ -73,6 +73,7 @@ static const struct bin_table bin_kern_t
+
+ { CTL_INT, KERN_PANIC, "panic" },
+ { CTL_INT, KERN_REALROOTDEV, "real-root-dev" },
++ { CTL_STR, KERN_VSHELPER, "vshelper" },
+
+ { CTL_STR, KERN_SPARC_REBOOT, "reboot-cmd" },
+ { CTL_INT, KERN_CTLALTDEL, "ctrl-alt-del" },
+diff -NurpP --minimal linux-3.0.9/kernel/time/timekeeping.c linux-3.0.9-vs2.3.2.1/kernel/time/timekeeping.c
+--- linux-3.0.9/kernel/time/timekeeping.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/time/timekeeping.c 2011-06-10 22:11:24.000000000 +0200
+@@ -233,6 +233,7 @@ void getnstimeofday(struct timespec *ts)
+ } while (read_seqretry(&xtime_lock, seq));
+
+ timespec_add_ns(ts, nsecs);
++ vx_adjust_timespec(ts);
+ }
+
+ EXPORT_SYMBOL(getnstimeofday);
+diff -NurpP --minimal linux-3.0.9/kernel/time.c linux-3.0.9-vs2.3.2.1/kernel/time.c
+--- linux-3.0.9/kernel/time.c 2011-11-15 16:40:47.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/time.c 2011-11-15 17:37:07.000000000 +0100
+@@ -92,7 +92,7 @@ SYSCALL_DEFINE1(stime, time_t __user *,
+ if (err)
+ return err;
+
+- do_settimeofday(&tv);
++ vx_settimeofday(&tv);
+ return 0;
+ }
+
+@@ -177,7 +177,7 @@ int do_sys_settimeofday(const struct tim
+ /* SMP safe, again the code in arch/foo/time.c should
+ * globally block out interrupts when it runs.
+ */
+- return do_settimeofday(tv);
++ return vx_settimeofday(tv);
+ }
+ return 0;
+ }
+diff -NurpP --minimal linux-3.0.9/kernel/timer.c linux-3.0.9-vs2.3.2.1/kernel/timer.c
+--- linux-3.0.9/kernel/timer.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/timer.c 2011-06-15 02:40:14.000000000 +0200
+@@ -40,6 +40,10 @@
+ #include <linux/irq_work.h>
+ #include <linux/sched.h>
+ #include <linux/slab.h>
++#include <linux/vs_base.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/sched.h>
+
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -1336,12 +1340,6 @@ SYSCALL_DEFINE1(alarm, unsigned int, sec
+
+ #endif
+
+-#ifndef __alpha__
+-
+-/*
+- * The Alpha uses getxpid, getxuid, and getxgid instead. Maybe this
+- * should be moved into arch/i386 instead?
+- */
+
+ /**
+ * sys_getpid - return the thread group id of the current process
+@@ -1370,10 +1368,23 @@ SYSCALL_DEFINE0(getppid)
+ rcu_read_lock();
+ pid = task_tgid_vnr(current->real_parent);
+ rcu_read_unlock();
++ return vx_map_pid(pid);
++}
+
+- return pid;
++#ifdef __alpha__
++
++/*
++ * The Alpha uses getxpid, getxuid, and getxgid instead.
++ */
++
++asmlinkage long do_getxpid(long *ppid)
++{
++ *ppid = sys_getppid();
++ return sys_getpid();
+ }
+
++#else /* _alpha_ */
++
+ SYSCALL_DEFINE0(getuid)
+ {
+ /* Only we change this so SMP safe */
+diff -NurpP --minimal linux-3.0.9/kernel/user_namespace.c linux-3.0.9-vs2.3.2.1/kernel/user_namespace.c
+--- linux-3.0.9/kernel/user_namespace.c 2011-03-15 18:07:42.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/user_namespace.c 2011-06-10 22:11:24.000000000 +0200
+@@ -11,6 +11,7 @@
+ #include <linux/user_namespace.h>
+ #include <linux/highuid.h>
+ #include <linux/cred.h>
++#include <linux/vserver/global.h>
+
+ static struct kmem_cache *user_ns_cachep __read_mostly;
+
+@@ -33,6 +34,7 @@ int create_user_ns(struct cred *new)
+ return -ENOMEM;
+
+ kref_init(&ns->kref);
++ atomic_inc(&vs_global_user_ns);
+
+ for (n = 0; n < UIDHASH_SZ; ++n)
+ INIT_HLIST_HEAD(ns->uidhash_table + n);
+@@ -81,6 +83,8 @@ void free_user_ns(struct kref *kref)
+ struct user_namespace *ns =
+ container_of(kref, struct user_namespace, kref);
+
++ /* FIXME: maybe move into destroyer? */
++ atomic_dec(&vs_global_user_ns);
+ INIT_WORK(&ns->destroyer, free_user_ns_work);
+ schedule_work(&ns->destroyer);
+ }
+diff -NurpP --minimal linux-3.0.9/kernel/utsname.c linux-3.0.9-vs2.3.2.1/kernel/utsname.c
+--- linux-3.0.9/kernel/utsname.c 2011-07-22 11:18:12.000000000 +0200
++++ linux-3.0.9-vs2.3.2.1/kernel/utsname.c 2011-06-13 14:09:44.000000000 +0200
+@@ -16,14 +16,17 @@
+ #include <linux/slab.h>
+ #include <linux/user_namespace.h>
+ #include <linux/proc_fs.h>
++#include <linux/vserver/global.h>
+
+ static struct uts_namespace *create_uts_ns(void)
+ {
+ struct uts_namespace *uts_ns;
+
+ uts_ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
+- if (uts_ns)
++ if (uts_ns) {
+ kref_init(&uts_ns->kref);
++ atomic_inc(&vs_global_uts_ns);
++ }
+ return uts_ns;
+ }
+
+@@ -32,8 +35,8 @@ static struct uts_namespace *create_uts_
+ * @old_ns: namespace to clone
+ * Return NULL on error (failure to kmalloc), new ns otherwise
+ */
+-static struct uts_namespace *clone_uts_ns(struct task_struct *tsk,
+- struct uts_namespace *old_ns)
++static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns,
++ struct user_namespace *old_user)
+ {
+ struct uts_namespace *ns;
+
+@@ -43,7 +46,7 @@ static struct uts_namespace *clone_uts_n
+
+ down_read(&uts_sem);
+ memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+- ns->user_ns = get_user_ns(task_cred_xxx(tsk, user)->user_ns);
++ ns->user_ns = get_user_ns(old_user);
+ up_read(&uts_sem);
+ return ns;
+ }
+@@ -55,9 +58,9 @@ static struct uts_namespace *clone_uts_n
+ * versa.
+ */
+ struct uts_namespace *copy_utsname(unsigned long flags,
+- struct task_struct *tsk)
++ struct uts_namespace *old_ns,
++ struct user_namespace *user_ns)
+ {
+- struct uts_namespace *old_ns = tsk->nsproxy->uts_ns;
+ struct uts_namespace *new_ns;
+
+ BUG_ON(!old_ns);
+@@ -66,7 +69,7 @@ struct uts_namespace *copy_utsname(unsig
+ if (!(flags & CLONE_NEWUTS))
+ return old_ns;
+
+- new_ns = clone_uts_ns(tsk, old_ns);
++ new_ns = clone_uts_ns(old_ns, user_ns);
+
+ put_uts_ns(old_ns);
+ return new_ns;
+@@ -78,6 +81,7 @@ void free_uts_ns(struct kref *kref)
+
+ ns = container_of(kref, struct uts_namespace, kref);
+ put_user_ns(ns->user_ns);
++ atomic_dec(&vs_global_uts_ns);
+ kfree(ns);
+ }
+
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/Kconfig linux-3.0.9-vs2.3.2.1/kernel/vserver/Kconfig
+--- linux-3.0.9/kernel/vserver/Kconfig 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/Kconfig 2011-08-08 18:06:22.000000000 +0200
+@@ -0,0 +1,232 @@
++#
++# Linux VServer configuration
++#
++
++menu "Linux VServer"
++
++config VSERVER_AUTO_LBACK
++ bool "Automatically Assign Loopback IP"
++ default y
++ help
++ Automatically assign a guest specific loopback
++ IP and add it to the kernel network stack on
++ startup.
++
++config VSERVER_AUTO_SINGLE
++ bool "Automatic Single IP Special Casing"
++ depends on EXPERIMENTAL
++ default y
++ help
++ This allows network contexts with a single IP to
++ automatically remap 0.0.0.0 bindings to that IP,
++ avoiding further network checks and improving
++ performance.
++
++ (note: such guests do not allow to change the ip
++ on the fly and do not show loopback addresses)
++
++config VSERVER_COWBL
++ bool "Enable COW Immutable Link Breaking"
++ default y
++ help
++ This enables the COW (Copy-On-Write) link break code.
++ It allows you to treat unified files like normal files
++ when writing to them (which will implicitely break the
++ link and create a copy of the unified file)
++
++config VSERVER_VTIME
++ bool "Enable Virtualized Guest Time"
++ depends on EXPERIMENTAL
++ default n
++ help
++ This enables per guest time offsets to allow for
++ adjusting the system clock individually per guest.
++ this adds some overhead to the time functions and
++ therefore should not be enabled without good reason.
++
++config VSERVER_DEVICE
++ bool "Enable Guest Device Mapping"
++ depends on EXPERIMENTAL
++ default n
++ help
++ This enables generic device remapping.
++
++config VSERVER_PROC_SECURE
++ bool "Enable Proc Security"
++ depends on PROC_FS
++ default y
++ help
++ This configures ProcFS security to initially hide
++ non-process entries for all contexts except the main and
++ spectator context (i.e. for all guests), which is a secure
++ default.
++
++ (note: on 1.2x the entries were visible by default)
++
++choice
++ prompt "Persistent Inode Tagging"
++ default TAGGING_ID24
++ help
++ This adds persistent context information to filesystems
++ mounted with the tagxid option. Tagging is a requirement
++ for per-context disk limits and per-context quota.
++
++
++config TAGGING_NONE
++ bool "Disabled"
++ help
++ do not store per-context information in inodes.
++
++config TAGGING_UID16
++ bool "UID16/GID32"
++ help
++ reduces UID to 16 bit, but leaves GID at 32 bit.
++
++config TAGGING_GID16
++ bool "UID32/GID16"
++ help
++ reduces GID to 16 bit, but leaves UID at 32 bit.
++
++config TAGGING_ID24
++ bool "UID24/GID24"
++ help
++ uses the upper 8bit from UID and GID for XID tagging
++ which leaves 24bit for UID/GID each, which should be
++ more than sufficient for normal use.
++
++config TAGGING_INTERN
++ bool "UID32/GID32"
++ help
++ this uses otherwise reserved inode fields in the on
++ disk representation, which limits the use to a few
++ filesystems (currently ext2 and ext3)
++
++endchoice
++
++config TAG_NFSD
++ bool "Tag NFSD User Auth and Files"
++ default n
++ help
++ Enable this if you do want the in-kernel NFS
++ Server to use the tagging specified above.
++ (will require patched clients too)
++
++config VSERVER_PRIVACY
++ bool "Honor Privacy Aspects of Guests"
++ default n
++ help
++ When enabled, most context checks will disallow
++ access to structures assigned to a specific context,
++ like ptys or loop devices.
++
++config VSERVER_CONTEXTS
++ int "Maximum number of Contexts (1-65533)" if EMBEDDED
++ range 1 65533
++ default "768" if 64BIT
++ default "256"
++ help
++ This setting will optimize certain data structures
++ and memory allocations according to the expected
++ maximum.
++
++ note: this is not a strict upper limit.
++
++config VSERVER_WARN
++ bool "VServer Warnings"
++ default y
++ help
++ This enables various runtime warnings, which will
++ notify about potential manipulation attempts or
++ resource shortage. It is generally considered to
++ be a good idea to have that enabled.
++
++config VSERVER_WARN_DEVPTS
++ bool "VServer DevPTS Warnings"
++ depends on VSERVER_WARN
++ default y
++ help
++ This enables DevPTS related warnings, issued when a
++ process inside a context tries to lookup or access
++ a dynamic pts from the host or a different context.
++
++config VSERVER_DEBUG
++ bool "VServer Debugging Code"
++ default n
++ help
++ Set this to yes if you want to be able to activate
++ debugging output at runtime. It adds a very small
++ overhead to all vserver related functions and
++ increases the kernel size by about 20k.
++
++config VSERVER_HISTORY
++ bool "VServer History Tracing"
++ depends on VSERVER_DEBUG
++ default n
++ help
++ Set this to yes if you want to record the history of
++ linux-vserver activities, so they can be replayed in
++ the event of a kernel panic or oops.
++
++config VSERVER_HISTORY_SIZE
++ int "Per-CPU History Size (32-65536)"
++ depends on VSERVER_HISTORY
++ range 32 65536
++ default 64
++ help
++ This allows you to specify the number of entries in
++ the per-CPU history buffer.
++
++config VSERVER_LEGACY_MEM
++ bool "Legacy Memory Limits"
++ default n
++ help
++ This provides fake memory limits to keep
++ older tools happy in the face of memory
++ cgroups
++
++choice
++ prompt "Quotes used in debug and warn messages"
++ default QUOTES_ISO8859
++
++config QUOTES_ISO8859
++ bool "Extended ASCII (ISO 8859) angle quotes"
++ help
++ This uses the extended ASCII characters \xbb
++ and \xab for quoting file and process names.
++
++config QUOTES_UTF8
++ bool "UTF-8 angle quotes"
++ help
++ This uses the the UTF-8 sequences for angle
++ quotes to quote file and process names.
++
++config QUOTES_ASCII
++ bool "ASCII single quotes"
++ help
++ This uses the ASCII single quote character
++ (\x27) to quote file and process names.
++
++endchoice
++
++endmenu
++
++
++config VSERVER
++ bool
++ default y
++ select NAMESPACES
++ select UTS_NS
++ select IPC_NS
++# select USER_NS
++ select SYSVIPC
++
++config VSERVER_SECURITY
++ bool
++ depends on SECURITY
++ default y
++ select SECURITY_CAPABILITIES
++
++config VSERVER_DISABLED
++ bool
++ default n
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/Makefile linux-3.0.9-vs2.3.2.1/kernel/vserver/Makefile
+--- linux-3.0.9/kernel/vserver/Makefile 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/Makefile 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,18 @@
++#
++# Makefile for the Linux vserver routines.
++#
++
++
++obj-y += vserver.o
++
++vserver-y := switch.o context.o space.o sched.o network.o inode.o \
++ limit.o cvirt.o cacct.o signal.o helper.o init.o \
++ dlimit.o tag.o
++
++vserver-$(CONFIG_INET) += inet.o
++vserver-$(CONFIG_PROC_FS) += proc.o
++vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o debug.o
++vserver-$(CONFIG_VSERVER_HISTORY) += history.o
++vserver-$(CONFIG_VSERVER_MONITOR) += monitor.o
++vserver-$(CONFIG_VSERVER_DEVICE) += device.o
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cacct.c linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct.c
+--- linux-3.0.9/kernel/vserver/cacct.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct.c 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,42 @@
++/*
++ * linux/kernel/vserver/cacct.c
++ *
++ * Virtual Server: Context Accounting
++ *
++ * Copyright (C) 2006-2007 Herbert Ptzl
++ *
++ * V0.01 added accounting stats
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/vs_context.h>
++#include <linux/vserver/cacct_cmd.h>
++#include <linux/vserver/cacct_int.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++int vc_sock_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_sock_stat_v0 vc_data;
++ int j, field;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ field = vc_data.field;
++ if ((field < 0) || (field >= VXA_SOCK_SIZE))
++ return -EINVAL;
++
++ for (j = 0; j < 3; j++) {
++ vc_data.count[j] = vx_sock_count(&vxi->cacct, field, j);
++ vc_data.total[j] = vx_sock_total(&vxi->cacct, field, j);
++ }
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cacct_init.h linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct_init.h
+--- linux-3.0.9/kernel/vserver/cacct_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct_init.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,25 @@
++
++
++static inline void vx_info_init_cacct(struct _vx_cacct *cacct)
++{
++ int i, j;
++
++
++ for (i = 0; i < VXA_SOCK_SIZE; i++) {
++ for (j = 0; j < 3; j++) {
++ atomic_long_set(&cacct->sock[i][j].count, 0);
++ atomic_long_set(&cacct->sock[i][j].total, 0);
++ }
++ }
++ for (i = 0; i < 8; i++)
++ atomic_set(&cacct->slab[i], 0);
++ for (i = 0; i < 5; i++)
++ for (j = 0; j < 4; j++)
++ atomic_set(&cacct->page[i][j], 0);
++}
++
++static inline void vx_info_exit_cacct(struct _vx_cacct *cacct)
++{
++ return;
++}
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cacct_proc.h linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct_proc.h
+--- linux-3.0.9/kernel/vserver/cacct_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cacct_proc.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,53 @@
++#ifndef _VX_CACCT_PROC_H
++#define _VX_CACCT_PROC_H
++
++#include <linux/vserver/cacct_int.h>
++
++
++#define VX_SOCKA_TOP \
++ "Type\t recv #/bytes\t\t send #/bytes\t\t fail #/bytes\n"
++
++static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer)
++{
++ int i, j, length = 0;
++ static char *type[VXA_SOCK_SIZE] = {
++ "UNSPEC", "UNIX", "INET", "INET6", "PACKET", "OTHER"
++ };
++
++ length += sprintf(buffer + length, VX_SOCKA_TOP);
++ for (i = 0; i < VXA_SOCK_SIZE; i++) {
++ length += sprintf(buffer + length, "%s:", type[i]);
++ for (j = 0; j < 3; j++) {
++ length += sprintf(buffer + length,
++ "\t%10lu/%-10lu",
++ vx_sock_count(cacct, i, j),
++ vx_sock_total(cacct, i, j));
++ }
++ buffer[length++] = '\n';
++ }
++
++ length += sprintf(buffer + length, "\n");
++ length += sprintf(buffer + length,
++ "slab:\t %8u %8u %8u %8u\n",
++ atomic_read(&cacct->slab[1]),
++ atomic_read(&cacct->slab[4]),
++ atomic_read(&cacct->slab[0]),
++ atomic_read(&cacct->slab[2]));
++
++ length += sprintf(buffer + length, "\n");
++ for (i = 0; i < 5; i++) {
++ length += sprintf(buffer + length,
++ "page[%d]: %8u %8u %8u %8u\t %8u %8u %8u %8u\n", i,
++ atomic_read(&cacct->page[i][0]),
++ atomic_read(&cacct->page[i][1]),
++ atomic_read(&cacct->page[i][2]),
++ atomic_read(&cacct->page[i][3]),
++ atomic_read(&cacct->page[i][4]),
++ atomic_read(&cacct->page[i][5]),
++ atomic_read(&cacct->page[i][6]),
++ atomic_read(&cacct->page[i][7]));
++ }
++ return length;
++}
++
++#endif /* _VX_CACCT_PROC_H */
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/context.c linux-3.0.9-vs2.3.2.1/kernel/vserver/context.c
+--- linux-3.0.9/kernel/vserver/context.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/context.c 2011-08-01 18:28:12.000000000 +0200
+@@ -0,0 +1,1107 @@
++/*
++ * linux/kernel/vserver/context.c
++ *
++ * Virtual Server: Context Support
++ *
++ * Copyright (C) 2003-2011 Herbert Ptzl
++ *
++ * V0.01 context helper
++ * V0.02 vx_ctx_kill syscall command
++ * V0.03 replaced context_info calls
++ * V0.04 redesign of struct (de)alloc
++ * V0.05 rlimit basic implementation
++ * V0.06 task_xid and info commands
++ * V0.07 context flags and caps
++ * V0.08 switch to RCU based hash
++ * V0.09 revert to non RCU for now
++ * V0.10 and back to working RCU hash
++ * V0.11 and back to locking again
++ * V0.12 referenced context store
++ * V0.13 separate per cpu data
++ * V0.14 changed vcmds to vxi arg
++ * V0.15 added context stat
++ * V0.16 have __create claim() the vxi
++ * V0.17 removed older and legacy stuff
++ * V0.18 added user credentials
++ * V0.19 added warn mask
++ *
++ */
++
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/security.h>
++#include <linux/pid_namespace.h>
++#include <linux/capability.h>
++
++#include <linux/vserver/context.h>
++#include <linux/vserver/network.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/limit.h>
++#include <linux/vserver/limit_int.h>
++#include <linux/vserver/space.h>
++#include <linux/init_task.h>
++#include <linux/fs_struct.h>
++#include <linux/cred.h>
++
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_pid.h>
++#include <linux/vserver/context_cmd.h>
++
++#include "cvirt_init.h"
++#include "cacct_init.h"
++#include "limit_init.h"
++#include "sched_init.h"
++
++
++atomic_t vx_global_ctotal = ATOMIC_INIT(0);
++atomic_t vx_global_cactive = ATOMIC_INIT(0);
++
++
++/* now inactive context structures */
++
++static struct hlist_head vx_info_inactive = HLIST_HEAD_INIT;
++
++static DEFINE_SPINLOCK(vx_info_inactive_lock);
++
++
++/* __alloc_vx_info()
++
++ * allocate an initialized vx_info struct
++ * doesn't make it visible (hash) */
++
++static struct vx_info *__alloc_vx_info(xid_t xid)
++{
++ struct vx_info *new = NULL;
++ int cpu, index;
++
++ vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid);
++
++ /* would this benefit from a slab cache? */
++ new = kmalloc(sizeof(struct vx_info), GFP_KERNEL);
++ if (!new)
++ return 0;
++
++ memset(new, 0, sizeof(struct vx_info));
++#ifdef CONFIG_SMP
++ new->ptr_pc = alloc_percpu(struct _vx_info_pc);
++ if (!new->ptr_pc)
++ goto error;
++#endif
++ new->vx_id = xid;
++ INIT_HLIST_NODE(&new->vx_hlist);
++ atomic_set(&new->vx_usecnt, 0);
++ atomic_set(&new->vx_tasks, 0);
++ new->vx_parent = NULL;
++ new->vx_state = 0;
++ init_waitqueue_head(&new->vx_wait);
++
++ /* prepare reaper */
++ get_task_struct(init_pid_ns.child_reaper);
++ new->vx_reaper = init_pid_ns.child_reaper;
++ new->vx_badness_bias = 0;
++
++ /* rest of init goes here */
++ vx_info_init_limit(&new->limit);
++ vx_info_init_sched(&new->sched);
++ vx_info_init_cvirt(&new->cvirt);
++ vx_info_init_cacct(&new->cacct);
++
++ /* per cpu data structures */
++ for_each_possible_cpu(cpu) {
++ vx_info_init_sched_pc(
++ &vx_per_cpu(new, sched_pc, cpu), cpu);
++ vx_info_init_cvirt_pc(
++ &vx_per_cpu(new, cvirt_pc, cpu), cpu);
++ }
++
++ new->vx_flags = VXF_INIT_SET;
++ new->vx_bcaps = CAP_FULL_SET; // maybe ~CAP_SETPCAP
++ new->vx_ccaps = 0;
++ new->vx_umask = 0;
++ new->vx_wmask = 0;
++
++ new->reboot_cmd = 0;
++ new->exit_code = 0;
++
++ // preconfig spaces
++ for (index = 0; index < VX_SPACES; index++) {
++ struct _vx_space *space = &new->space[index];
++
++ // filesystem
++ spin_lock(&init_fs.lock);
++ init_fs.users++;
++ spin_unlock(&init_fs.lock);
++ space->vx_fs = &init_fs;
++
++ /* FIXME: do we want defaults? */
++ // space->vx_real_cred = 0;
++ // space->vx_cred = 0;
++ }
++
++
++ vxdprintk(VXD_CBIT(xid, 0),
++ "alloc_vx_info(%d) = %p", xid, new);
++ vxh_alloc_vx_info(new);
++ atomic_inc(&vx_global_ctotal);
++ return new;
++#ifdef CONFIG_SMP
++error:
++ kfree(new);
++ return 0;
++#endif
++}
++
++/* __dealloc_vx_info()
++
++ * final disposal of vx_info */
++
++static void __dealloc_vx_info(struct vx_info *vxi)
++{
++#ifdef CONFIG_VSERVER_WARN
++ struct vx_info_save vxis;
++ int cpu;
++#endif
++ vxdprintk(VXD_CBIT(xid, 0),
++ "dealloc_vx_info(%p)", vxi);
++ vxh_dealloc_vx_info(vxi);
++
++#ifdef CONFIG_VSERVER_WARN
++ enter_vx_info(vxi, &vxis);
++ vx_info_exit_limit(&vxi->limit);
++ vx_info_exit_sched(&vxi->sched);
++ vx_info_exit_cvirt(&vxi->cvirt);
++ vx_info_exit_cacct(&vxi->cacct);
++
++ for_each_possible_cpu(cpu) {
++ vx_info_exit_sched_pc(
++ &vx_per_cpu(vxi, sched_pc, cpu), cpu);
++ vx_info_exit_cvirt_pc(
++ &vx_per_cpu(vxi, cvirt_pc, cpu), cpu);
++ }
++ leave_vx_info(&vxis);
++#endif
++
++ vxi->vx_id = -1;
++ vxi->vx_state |= VXS_RELEASED;
++
++#ifdef CONFIG_SMP
++ free_percpu(vxi->ptr_pc);
++#endif
++ kfree(vxi);
++ atomic_dec(&vx_global_ctotal);
++}
++
++static void __shutdown_vx_info(struct vx_info *vxi)
++{
++ struct nsproxy *nsproxy;
++ struct fs_struct *fs;
++ struct cred *cred;
++ int index, kill;
++
++ might_sleep();
++
++ vxi->vx_state |= VXS_SHUTDOWN;
++ vs_state_change(vxi, VSC_SHUTDOWN);
++
++ for (index = 0; index < VX_SPACES; index++) {
++ struct _vx_space *space = &vxi->space[index];
++
++ nsproxy = xchg(&space->vx_nsproxy, NULL);
++ if (nsproxy)
++ put_nsproxy(nsproxy);
++
++ fs = xchg(&space->vx_fs, NULL);
++ spin_lock(&fs->lock);
++ kill = !--fs->users;
++ spin_unlock(&fs->lock);
++ if (kill)
++ free_fs_struct(fs);
++
++ cred = (struct cred *)xchg(&space->vx_cred, NULL);
++ if (cred)
++ abort_creds(cred);
++ }
++}
++
++/* exported stuff */
++
++void free_vx_info(struct vx_info *vxi)
++{
++ unsigned long flags;
++ unsigned index;
++
++ /* check for reference counts first */
++ BUG_ON(atomic_read(&vxi->vx_usecnt));
++ BUG_ON(atomic_read(&vxi->vx_tasks));
++
++ /* context must not be hashed */
++ BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++ /* context shutdown is mandatory */
++ BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN));
++
++ /* spaces check */
++ for (index = 0; index < VX_SPACES; index++) {
++ struct _vx_space *space = &vxi->space[index];
++
++ BUG_ON(space->vx_nsproxy);
++ BUG_ON(space->vx_fs);
++ // BUG_ON(space->vx_real_cred);
++ // BUG_ON(space->vx_cred);
++ }
++
++ spin_lock_irqsave(&vx_info_inactive_lock, flags);
++ hlist_del(&vxi->vx_hlist);
++ spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
++
++ __dealloc_vx_info(vxi);
++}
++
++
++/* hash table for vx_info hash */
++
++#define VX_HASH_SIZE 13
++
++static struct hlist_head vx_info_hash[VX_HASH_SIZE] =
++ { [0 ... VX_HASH_SIZE-1] = HLIST_HEAD_INIT };
++
++static DEFINE_SPINLOCK(vx_info_hash_lock);
++
++
++static inline unsigned int __hashval(xid_t xid)
++{
++ return (xid % VX_HASH_SIZE);
++}
++
++
++
++/* __hash_vx_info()
++
++ * add the vxi to the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __hash_vx_info(struct vx_info *vxi)
++{
++ struct hlist_head *head;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ vxdprintk(VXD_CBIT(xid, 4),
++ "__hash_vx_info: %p[#%d]", vxi, vxi->vx_id);
++ vxh_hash_vx_info(vxi);
++
++ /* context must not be hashed */
++ BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++ vxi->vx_state |= VXS_HASHED;
++ head = &vx_info_hash[__hashval(vxi->vx_id)];
++ hlist_add_head(&vxi->vx_hlist, head);
++ atomic_inc(&vx_global_cactive);
++}
++
++/* __unhash_vx_info()
++
++ * remove the vxi from the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __unhash_vx_info(struct vx_info *vxi)
++{
++ unsigned long flags;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ vxdprintk(VXD_CBIT(xid, 4),
++ "__unhash_vx_info: %p[#%d.%d.%d]", vxi, vxi->vx_id,
++ atomic_read(&vxi->vx_usecnt), atomic_read(&vxi->vx_tasks));
++ vxh_unhash_vx_info(vxi);
++
++ /* context must be hashed */
++ BUG_ON(!vx_info_state(vxi, VXS_HASHED));
++ /* but without tasks */
++ BUG_ON(atomic_read(&vxi->vx_tasks));
++
++ vxi->vx_state &= ~VXS_HASHED;
++ hlist_del_init(&vxi->vx_hlist);
++ spin_lock_irqsave(&vx_info_inactive_lock, flags);
++ hlist_add_head(&vxi->vx_hlist, &vx_info_inactive);
++ spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
++ atomic_dec(&vx_global_cactive);
++}
++
++
++/* __lookup_vx_info()
++
++ * requires the hash_lock to be held
++ * doesn't increment the vx_refcnt */
++
++static inline struct vx_info *__lookup_vx_info(xid_t xid)
++{
++ struct hlist_head *head = &vx_info_hash[__hashval(xid)];
++ struct hlist_node *pos;
++ struct vx_info *vxi;
++
++ vxd_assert_lock(&vx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++
++ if (vxi->vx_id == xid)
++ goto found;
++ }
++ vxi = NULL;
++found:
++ vxdprintk(VXD_CBIT(xid, 0),
++ "__lookup_vx_info(#%u): %p[#%u]",
++ xid, vxi, vxi ? vxi->vx_id : 0);
++ vxh_lookup_vx_info(vxi, xid);
++ return vxi;
++}
++
++
++/* __create_vx_info()
++
++ * create the requested context
++ * get(), claim() and hash it */
++
++static struct vx_info *__create_vx_info(int id)
++{
++ struct vx_info *new, *vxi = NULL;
++
++ vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id);
++
++ if (!(new = __alloc_vx_info(id)))
++ return ERR_PTR(-ENOMEM);
++
++ /* required to make dynamic xids unique */
++ spin_lock(&vx_info_hash_lock);
++
++ /* static context requested */
++ if ((vxi = __lookup_vx_info(id))) {
++ vxdprintk(VXD_CBIT(xid, 0),
++ "create_vx_info(%d) = %p (already there)", id, vxi);
++ if (vx_info_flags(vxi, VXF_STATE_SETUP, 0))
++ vxi = ERR_PTR(-EBUSY);
++ else
++ vxi = ERR_PTR(-EEXIST);
++ goto out_unlock;
++ }
++ /* new context */
++ vxdprintk(VXD_CBIT(xid, 0),
++ "create_vx_info(%d) = %p (new)", id, new);
++ claim_vx_info(new, NULL);
++ __hash_vx_info(get_vx_info(new));
++ vxi = new, new = NULL;
++
++out_unlock:
++ spin_unlock(&vx_info_hash_lock);
++ vxh_create_vx_info(IS_ERR(vxi) ? NULL : vxi, id);
++ if (new)
++ __dealloc_vx_info(new);
++ return vxi;
++}
++
++
++/* exported stuff */
++
++
++void unhash_vx_info(struct vx_info *vxi)
++{
++ spin_lock(&vx_info_hash_lock);
++ __unhash_vx_info(vxi);
++ spin_unlock(&vx_info_hash_lock);
++ __shutdown_vx_info(vxi);
++ __wakeup_vx_info(vxi);
++}
++
++
++/* lookup_vx_info()
++
++ * search for a vx_info and get() it
++ * negative id means current */
++
++struct vx_info *lookup_vx_info(int id)
++{
++ struct vx_info *vxi = NULL;
++
++ if (id < 0) {
++ vxi = get_vx_info(current_vx_info());
++ } else if (id > 1) {
++ spin_lock(&vx_info_hash_lock);
++ vxi = get_vx_info(__lookup_vx_info(id));
++ spin_unlock(&vx_info_hash_lock);
++ }
++ return vxi;
++}
++
++/* xid_is_hashed()
++
++ * verify that xid is still hashed */
++
++int xid_is_hashed(xid_t xid)
++{
++ int hashed;
++
++ spin_lock(&vx_info_hash_lock);
++ hashed = (__lookup_vx_info(xid) != NULL);
++ spin_unlock(&vx_info_hash_lock);
++ return hashed;
++}
++
++#ifdef CONFIG_PROC_FS
++
++/* get_xid_list()
++
++ * get a subset of hashed xids for proc
++ * assumes size is at least one */
++
++int get_xid_list(int index, unsigned int *xids, int size)
++{
++ int hindex, nr_xids = 0;
++
++ /* only show current and children */
++ if (!vx_check(0, VS_ADMIN | VS_WATCH)) {
++ if (index > 0)
++ return 0;
++ xids[nr_xids] = vx_current_xid();
++ return 1;
++ }
++
++ for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) {
++ struct hlist_head *head = &vx_info_hash[hindex];
++ struct hlist_node *pos;
++
++ spin_lock(&vx_info_hash_lock);
++ hlist_for_each(pos, head) {
++ struct vx_info *vxi;
++
++ if (--index > 0)
++ continue;
++
++ vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++ xids[nr_xids] = vxi->vx_id;
++ if (++nr_xids >= size) {
++ spin_unlock(&vx_info_hash_lock);
++ goto out;
++ }
++ }
++ /* keep the lock time short */
++ spin_unlock(&vx_info_hash_lock);
++ }
++out:
++ return nr_xids;
++}
++#endif
++
++#ifdef CONFIG_VSERVER_DEBUG
++
++void dump_vx_info_inactive(int level)
++{
++ struct hlist_node *entry, *next;
++
++ hlist_for_each_safe(entry, next, &vx_info_inactive) {
++ struct vx_info *vxi =
++ list_entry(entry, struct vx_info, vx_hlist);
++
++ dump_vx_info(vxi, level);
++ }
++}
++
++#endif
++
++#if 0
++int vx_migrate_user(struct task_struct *p, struct vx_info *vxi)
++{
++ struct user_struct *new_user, *old_user;
++
++ if (!p || !vxi)
++ BUG();
++
++ if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
++ return -EACCES;
++
++ new_user = alloc_uid(vxi->vx_id, p->uid);
++ if (!new_user)
++ return -ENOMEM;
++
++ old_user = p->user;
++ if (new_user != old_user) {
++ atomic_inc(&new_user->processes);
++ atomic_dec(&old_user->processes);
++ p->user = new_user;
++ }
++ free_uid(old_user);
++ return 0;
++}
++#endif
++
++#if 0
++void vx_mask_cap_bset(struct vx_info *vxi, struct task_struct *p)
++{
++ // p->cap_effective &= vxi->vx_cap_bset;
++ p->cap_effective =
++ cap_intersect(p->cap_effective, vxi->cap_bset);
++ // p->cap_inheritable &= vxi->vx_cap_bset;
++ p->cap_inheritable =
++ cap_intersect(p->cap_inheritable, vxi->cap_bset);
++ // p->cap_permitted &= vxi->vx_cap_bset;
++ p->cap_permitted =
++ cap_intersect(p->cap_permitted, vxi->cap_bset);
++}
++#endif
++
++
++#include <linux/file.h>
++#include <linux/fdtable.h>
++
++static int vx_openfd_task(struct task_struct *tsk)
++{
++ struct files_struct *files = tsk->files;
++ struct fdtable *fdt;
++ const unsigned long *bptr;
++ int count, total;
++
++ /* no rcu_read_lock() because of spin_lock() */
++ spin_lock(&files->file_lock);
++ fdt = files_fdtable(files);
++ bptr = fdt->open_fds->fds_bits;
++ count = fdt->max_fds / (sizeof(unsigned long) * 8);
++ for (total = 0; count > 0; count--) {
++ if (*bptr)
++ total += hweight_long(*bptr);
++ bptr++;
++ }
++ spin_unlock(&files->file_lock);
++ return total;
++}
++
++
++/* for *space compatibility */
++
++asmlinkage long sys_unshare(unsigned long);
++
++/*
++ * migrate task to new context
++ * gets vxi, puts old_vxi on change
++ * optionally unshares namespaces (hack)
++ */
++
++int vx_migrate_task(struct task_struct *p, struct vx_info *vxi, int unshare)
++{
++ struct vx_info *old_vxi;
++ int ret = 0;
++
++ if (!p || !vxi)
++ BUG();
++
++ vxdprintk(VXD_CBIT(xid, 5),
++ "vx_migrate_task(%p,%p[#%d.%d])", p, vxi,
++ vxi->vx_id, atomic_read(&vxi->vx_usecnt));
++
++ if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0) &&
++ !vx_info_flags(vxi, VXF_STATE_SETUP, 0))
++ return -EACCES;
++
++ if (vx_info_state(vxi, VXS_SHUTDOWN))
++ return -EFAULT;
++
++ old_vxi = task_get_vx_info(p);
++ if (old_vxi == vxi)
++ goto out;
++
++// if (!(ret = vx_migrate_user(p, vxi))) {
++ {
++ int openfd;
++
++ task_lock(p);
++ openfd = vx_openfd_task(p);
++
++ if (old_vxi) {
++ atomic_dec(&old_vxi->cvirt.nr_threads);
++ atomic_dec(&old_vxi->cvirt.nr_running);
++ __rlim_dec(&old_vxi->limit, RLIMIT_NPROC);
++ /* FIXME: what about the struct files here? */
++ __rlim_sub(&old_vxi->limit, VLIMIT_OPENFD, openfd);
++ /* account for the executable */
++ __rlim_dec(&old_vxi->limit, VLIMIT_DENTRY);
++ }
++ atomic_inc(&vxi->cvirt.nr_threads);
++ atomic_inc(&vxi->cvirt.nr_running);
++ __rlim_inc(&vxi->limit, RLIMIT_NPROC);
++ /* FIXME: what about the struct files here? */
++ __rlim_add(&vxi->limit, VLIMIT_OPENFD, openfd);
++ /* account for the executable */
++ __rlim_inc(&vxi->limit, VLIMIT_DENTRY);
++
++ if (old_vxi) {
++ release_vx_info(old_vxi, p);
++ clr_vx_info(&p->vx_info);
++ }
++ claim_vx_info(vxi, p);
++ set_vx_info(&p->vx_info, vxi);
++ p->xid = vxi->vx_id;
++
++ vxdprintk(VXD_CBIT(xid, 5),
++ "moved task %p into vxi:%p[#%d]",
++ p, vxi, vxi->vx_id);
++
++ // vx_mask_cap_bset(vxi, p);
++ task_unlock(p);
++
++ /* hack for *spaces to provide compatibility */
++ if (unshare) {
++ struct nsproxy *old_nsp, *new_nsp;
++
++ ret = unshare_nsproxy_namespaces(
++ CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWUSER,
++ &new_nsp, NULL);
++ if (ret)
++ goto out;
++
++ old_nsp = xchg(&p->nsproxy, new_nsp);
++ vx_set_space(vxi,
++ CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWUSER, 0);
++ put_nsproxy(old_nsp);
++ }
++ }
++out:
++ put_vx_info(old_vxi);
++ return ret;
++}
++
++int vx_set_reaper(struct vx_info *vxi, struct task_struct *p)
++{
++ struct task_struct *old_reaper;
++
++ if (!vxi)
++ return -EINVAL;
++
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_reaper(%p[#%d],%p[#%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid);
++
++ old_reaper = vxi->vx_reaper;
++ if (old_reaper == p)
++ return 0;
++
++ /* set new child reaper */
++ get_task_struct(p);
++ vxi->vx_reaper = p;
++ put_task_struct(old_reaper);
++ return 0;
++}
++
++int vx_set_init(struct vx_info *vxi, struct task_struct *p)
++{
++ if (!vxi)
++ return -EINVAL;
++
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
++
++ vxi->vx_flags &= ~VXF_STATE_INIT;
++ // vxi->vx_initpid = p->tgid;
++ vxi->vx_initpid = p->pid;
++ return 0;
++}
++
++void vx_exit_init(struct vx_info *vxi, struct task_struct *p, int code)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_exit_init(%p[#%d],%p[#%d,%d,%d])",
++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
++
++ vxi->exit_code = code;
++ vxi->vx_initpid = 0;
++}
++
++
++void vx_set_persistent(struct vx_info *vxi)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_set_persistent(%p[#%d])", vxi, vxi->vx_id);
++
++ get_vx_info(vxi);
++ claim_vx_info(vxi, NULL);
++}
++
++void vx_clear_persistent(struct vx_info *vxi)
++{
++ vxdprintk(VXD_CBIT(xid, 6),
++ "vx_clear_persistent(%p[#%d])", vxi, vxi->vx_id);
++
++ release_vx_info(vxi, NULL);
++ put_vx_info(vxi);
++}
++
++void vx_update_persistent(struct vx_info *vxi)
++{
++ if (vx_info_flags(vxi, VXF_PERSISTENT, 0))
++ vx_set_persistent(vxi);
++ else
++ vx_clear_persistent(vxi);
++}
++
++
++/* task must be current or locked */
++
++void exit_vx_info(struct task_struct *p, int code)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi) {
++ atomic_dec(&vxi->cvirt.nr_threads);
++ vx_nproc_dec(p);
++
++ vxi->exit_code = code;
++ release_vx_info(vxi, p);
++ }
++}
++
++void exit_vx_info_early(struct task_struct *p, int code)
++{
++ struct vx_info *vxi = p->vx_info;
++
++ if (vxi) {
++ if (vxi->vx_initpid == p->pid)
++ vx_exit_init(vxi, p, code);
++ if (vxi->vx_reaper == p)
++ vx_set_reaper(vxi, init_pid_ns.child_reaper);
++ }
++}
++
++
++/* vserver syscall commands below here */
++
++/* taks xid and vx_info functions */
++
++#include <asm/uaccess.h>
++
++
++int vc_task_xid(uint32_t id)
++{
++ xid_t xid;
++
++ if (id) {
++ struct task_struct *tsk;
++
++ rcu_read_lock();
++ tsk = find_task_by_real_pid(id);
++ xid = (tsk) ? tsk->xid : -ESRCH;
++ rcu_read_unlock();
++ } else
++ xid = vx_current_xid();
++ return xid;
++}
++
++
++int vc_vx_info(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vx_info_v0 vc_data;
++
++ vc_data.xid = vxi->vx_id;
++ vc_data.initpid = vxi->vx_initpid;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++int vc_ctx_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_stat_v0 vc_data;
++
++ vc_data.usecnt = atomic_read(&vxi->vx_usecnt);
++ vc_data.tasks = atomic_read(&vxi->vx_tasks);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++/* context functions */
++
++int vc_ctx_create(uint32_t xid, void __user *data)
++{
++ struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET };
++ struct vx_info *new_vxi;
++ int ret;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ if ((xid > MAX_S_CONTEXT) || (xid < 2))
++ return -EINVAL;
++
++ new_vxi = __create_vx_info(xid);
++ if (IS_ERR(new_vxi))
++ return PTR_ERR(new_vxi);
++
++ /* initial flags */
++ new_vxi->vx_flags = vc_data.flagword;
++
++ ret = -ENOEXEC;
++ if (vs_state_change(new_vxi, VSC_STARTUP))
++ goto out;
++
++ ret = vx_migrate_task(current, new_vxi, (!data));
++ if (ret)
++ goto out;
++
++ /* return context id on success */
++ ret = new_vxi->vx_id;
++
++ /* get a reference for persistent contexts */
++ if ((vc_data.flagword & VXF_PERSISTENT))
++ vx_set_persistent(new_vxi);
++out:
++ release_vx_info(new_vxi, NULL);
++ put_vx_info(new_vxi);
++ return ret;
++}
++
++
++int vc_ctx_migrate(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_migrate vc_data = { .flagword = 0 };
++ int ret;
++
++ if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = vx_migrate_task(current, vxi, 0);
++ if (ret)
++ return ret;
++ if (vc_data.flagword & VXM_SET_INIT)
++ ret = vx_set_init(vxi, current);
++ if (ret)
++ return ret;
++ if (vc_data.flagword & VXM_SET_REAPER)
++ ret = vx_set_reaper(vxi, current);
++ return ret;
++}
++
++
++int vc_get_cflags(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_flags_v0 vc_data;
++
++ vc_data.flagword = vxi->vx_flags;
++
++ /* special STATE flag handling */
++ vc_data.mask = vs_mask_flags(~0ULL, vxi->vx_flags, VXF_ONE_TIME);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_cflags(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_flags_v0 vc_data;
++ uint64_t mask, trigger;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ /* special STATE flag handling */
++ mask = vs_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME);
++ trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword);
++
++ if (vxi == current_vx_info()) {
++ /* if (trigger & VXF_STATE_SETUP)
++ vx_mask_cap_bset(vxi, current); */
++ if (trigger & VXF_STATE_INIT) {
++ int ret;
++
++ ret = vx_set_init(vxi, current);
++ if (ret)
++ return ret;
++ ret = vx_set_reaper(vxi, current);
++ if (ret)
++ return ret;
++ }
++ }
++
++ vxi->vx_flags = vs_mask_flags(vxi->vx_flags,
++ vc_data.flagword, mask);
++ if (trigger & VXF_PERSISTENT)
++ vx_update_persistent(vxi);
++
++ return 0;
++}
++
++
++static inline uint64_t caps_from_cap_t(kernel_cap_t c)
++{
++ uint64_t v = c.cap[0] | ((uint64_t)c.cap[1] << 32);
++
++ // printk("caps_from_cap_t(%08x:%08x) = %016llx\n", c.cap[1], c.cap[0], v);
++ return v;
++}
++
++static inline kernel_cap_t cap_t_from_caps(uint64_t v)
++{
++ kernel_cap_t c = __cap_empty_set;
++
++ c.cap[0] = v & 0xFFFFFFFF;
++ c.cap[1] = (v >> 32) & 0xFFFFFFFF;
++
++ // printk("cap_t_from_caps(%016llx) = %08x:%08x\n", v, c.cap[1], c.cap[0]);
++ return c;
++}
++
++
++static int do_get_caps(struct vx_info *vxi, uint64_t *bcaps, uint64_t *ccaps)
++{
++ if (bcaps)
++ *bcaps = caps_from_cap_t(vxi->vx_bcaps);
++ if (ccaps)
++ *ccaps = vxi->vx_ccaps;
++
++ return 0;
++}
++
++int vc_get_ccaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_caps_v1 vc_data;
++ int ret;
++
++ ret = do_get_caps(vxi, NULL, &vc_data.ccaps);
++ if (ret)
++ return ret;
++ vc_data.cmask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++static int do_set_caps(struct vx_info *vxi,
++ uint64_t bcaps, uint64_t bmask, uint64_t ccaps, uint64_t cmask)
++{
++ uint64_t bcold = caps_from_cap_t(vxi->vx_bcaps);
++
++#if 0
++ printk("do_set_caps(%16llx, %16llx, %16llx, %16llx)\n",
++ bcaps, bmask, ccaps, cmask);
++#endif
++ vxi->vx_bcaps = cap_t_from_caps(
++ vs_mask_flags(bcold, bcaps, bmask));
++ vxi->vx_ccaps = vs_mask_flags(vxi->vx_ccaps, ccaps, cmask);
++
++ return 0;
++}
++
++int vc_set_ccaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_ctx_caps_v1 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_caps(vxi, 0, 0, vc_data.ccaps, vc_data.cmask);
++}
++
++int vc_get_bcaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_bcaps vc_data;
++ int ret;
++
++ ret = do_get_caps(vxi, &vc_data.bcaps, NULL);
++ if (ret)
++ return ret;
++ vc_data.bmask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_bcaps(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_bcaps vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_caps(vxi, vc_data.bcaps, vc_data.bmask, 0, 0);
++}
++
++
++int vc_get_umask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_umask vc_data;
++
++ vc_data.umask = vxi->vx_umask;
++ vc_data.mask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_umask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_umask vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ vxi->vx_umask = vs_mask_flags(vxi->vx_umask,
++ vc_data.umask, vc_data.mask);
++ return 0;
++}
++
++
++int vc_get_wmask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_wmask vc_data;
++
++ vc_data.wmask = vxi->vx_wmask;
++ vc_data.mask = ~0ULL;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_wmask(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_wmask vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ vxi->vx_wmask = vs_mask_flags(vxi->vx_wmask,
++ vc_data.wmask, vc_data.mask);
++ return 0;
++}
++
++
++int vc_get_badness(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_badness_v0 vc_data;
++
++ vc_data.bias = vxi->vx_badness_bias;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++int vc_set_badness(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_badness_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ vxi->vx_badness_bias = vc_data.bias;
++ return 0;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(free_vx_info);
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cvirt.c linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt.c
+--- linux-3.0.9/kernel/vserver/cvirt.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt.c 2011-06-13 14:57:26.000000000 +0200
+@@ -0,0 +1,303 @@
++/*
++ * linux/kernel/vserver/cvirt.c
++ *
++ * Virtual Server: Context Virtualization
++ *
++ * Copyright (C) 2004-2007 Herbert Ptzl
++ *
++ * V0.01 broken out from limit.c
++ * V0.02 added utsname stuff
++ * V0.03 changed vcmds to vxi arg
++ *
++ */
++
++#include <linux/types.h>
++#include <linux/utsname.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vserver/switch.h>
++#include <linux/vserver/cvirt_cmd.h>
++
++#include <asm/uaccess.h>
++
++
++void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle)
++{
++ struct vx_info *vxi = current_vx_info();
++
++ set_normalized_timespec(uptime,
++ uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec,
++ uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec);
++ if (!idle)
++ return;
++ set_normalized_timespec(idle,
++ idle->tv_sec - vxi->cvirt.bias_idle.tv_sec,
++ idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec);
++ return;
++}
++
++uint64_t vx_idle_jiffies(void)
++{
++ return init_task.utime + init_task.stime;
++}
++
++
++
++static inline uint32_t __update_loadavg(uint32_t load,
++ int wsize, int delta, int n)
++{
++ unsigned long long calc, prev;
++
++ /* just set it to n */
++ if (unlikely(delta >= wsize))
++ return (n << FSHIFT);
++
++ calc = delta * n;
++ calc <<= FSHIFT;
++ prev = (wsize - delta);
++ prev *= load;
++ calc += prev;
++ do_div(calc, wsize);
++ return calc;
++}
++
++
++void vx_update_load(struct vx_info *vxi)
++{
++ uint32_t now, last, delta;
++ unsigned int nr_running, nr_uninterruptible;
++ unsigned int total;
++ unsigned long flags;
++
++ spin_lock_irqsave(&vxi->cvirt.load_lock, flags);
++
++ now = jiffies;
++ last = vxi->cvirt.load_last;
++ delta = now - last;
++
++ if (delta < 5*HZ)
++ goto out;
++
++ nr_running = atomic_read(&vxi->cvirt.nr_running);
++ nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible);
++ total = nr_running + nr_uninterruptible;
++
++ vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0],
++ 60*HZ, delta, total);
++ vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1],
++ 5*60*HZ, delta, total);
++ vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2],
++ 15*60*HZ, delta, total);
++
++ vxi->cvirt.load_last = now;
++out:
++ atomic_inc(&vxi->cvirt.load_updates);
++ spin_unlock_irqrestore(&vxi->cvirt.load_lock, flags);
++}
++
++
++/*
++ * Commands to do_syslog:
++ *
++ * 0 -- Close the log. Currently a NOP.
++ * 1 -- Open the log. Currently a NOP.
++ * 2 -- Read from the log.
++ * 3 -- Read all messages remaining in the ring buffer.
++ * 4 -- Read and clear all messages remaining in the ring buffer
++ * 5 -- Clear ring buffer.
++ * 6 -- Disable printk's to console
++ * 7 -- Enable printk's to console
++ * 8 -- Set level of messages printed to console
++ * 9 -- Return number of unread characters in the log buffer
++ * 10 -- Return size of the log buffer
++ */
++int vx_do_syslog(int type, char __user *buf, int len)
++{
++ int error = 0;
++ int do_clear = 0;
++ struct vx_info *vxi = current_vx_info();
++ struct _vx_syslog *log;
++
++ if (!vxi)
++ return -EINVAL;
++ log = &vxi->cvirt.syslog;
++
++ switch (type) {
++ case 0: /* Close log */
++ case 1: /* Open log */
++ break;
++ case 2: /* Read from log */
++ error = wait_event_interruptible(log->log_wait,
++ (log->log_start - log->log_end));
++ if (error)
++ break;
++ spin_lock_irq(&log->logbuf_lock);
++ spin_unlock_irq(&log->logbuf_lock);
++ break;
++ case 4: /* Read/clear last kernel messages */
++ do_clear = 1;
++ /* fall through */
++ case 3: /* Read last kernel messages */
++ return 0;
++
++ case 5: /* Clear ring buffer */
++ return 0;
++
++ case 6: /* Disable logging to console */
++ case 7: /* Enable logging to console */
++ case 8: /* Set level of messages printed to console */
++ break;
++
++ case 9: /* Number of chars in the log buffer */
++ return 0;
++ case 10: /* Size of the log buffer */
++ return 0;
++ default:
++ error = -EINVAL;
++ break;
++ }
++ return error;
++}
++
++
++/* virtual host info names */
++
++static char *vx_vhi_name(struct vx_info *vxi, int id)
++{
++ struct nsproxy *nsproxy;
++ struct uts_namespace *uts;
++
++ if (id == VHIN_CONTEXT)
++ return vxi->vx_name;
++
++ nsproxy = vxi->space[0].vx_nsproxy;
++ if (!nsproxy)
++ return NULL;
++
++ uts = nsproxy->uts_ns;
++ if (!uts)
++ return NULL;
++
++ switch (id) {
++ case VHIN_SYSNAME:
++ return uts->name.sysname;
++ case VHIN_NODENAME:
++ return uts->name.nodename;
++ case VHIN_RELEASE:
++ return uts->name.release;
++ case VHIN_VERSION:
++ return uts->name.version;
++ case VHIN_MACHINE:
++ return uts->name.machine;
++ case VHIN_DOMAINNAME:
++ return uts->name.domainname;
++ default:
++ return NULL;
++ }
++ return NULL;
++}
++
++int vc_set_vhi_name(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vhi_name_v0 vc_data;
++ char *name;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ name = vx_vhi_name(vxi, vc_data.field);
++ if (!name)
++ return -EINVAL;
++
++ memcpy(name, vc_data.name, 65);
++ return 0;
++}
++
++int vc_get_vhi_name(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_vhi_name_v0 vc_data;
++ char *name;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ name = vx_vhi_name(vxi, vc_data.field);
++ if (!name)
++ return -EINVAL;
++
++ memcpy(vc_data.name, name, 65);
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++int vc_virt_stat(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_virt_stat_v0 vc_data;
++ struct _vx_cvirt *cvirt = &vxi->cvirt;
++ struct timespec uptime;
++
++ do_posix_clock_monotonic_gettime(&uptime);
++ set_normalized_timespec(&uptime,
++ uptime.tv_sec - cvirt->bias_uptime.tv_sec,
++ uptime.tv_nsec - cvirt->bias_uptime.tv_nsec);
++
++ vc_data.offset = timespec_to_ns(&cvirt->bias_ts);
++ vc_data.uptime = timespec_to_ns(&uptime);
++ vc_data.nr_threads = atomic_read(&cvirt->nr_threads);
++ vc_data.nr_running = atomic_read(&cvirt->nr_running);
++ vc_data.nr_uninterruptible = atomic_read(&cvirt->nr_uninterruptible);
++ vc_data.nr_onhold = atomic_read(&cvirt->nr_onhold);
++ vc_data.nr_forks = atomic_read(&cvirt->total_forks);
++ vc_data.load[0] = cvirt->load[0];
++ vc_data.load[1] = cvirt->load[1];
++ vc_data.load[2] = cvirt->load[2];
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++
++#ifdef CONFIG_VSERVER_VTIME
++
++/* virtualized time base */
++
++void vx_adjust_timespec(struct timespec *ts)
++{
++ struct vx_info *vxi;
++
++ if (!vx_flags(VXF_VIRT_TIME, 0))
++ return;
++
++ vxi = current_vx_info();
++ ts->tv_sec += vxi->cvirt.bias_ts.tv_sec;
++ ts->tv_nsec += vxi->cvirt.bias_ts.tv_nsec;
++
++ if (ts->tv_nsec >= NSEC_PER_SEC) {
++ ts->tv_sec++;
++ ts->tv_nsec -= NSEC_PER_SEC;
++ } else if (ts->tv_nsec < 0) {
++ ts->tv_sec--;
++ ts->tv_nsec += NSEC_PER_SEC;
++ }
++}
++
++int vx_settimeofday(const struct timespec *ts)
++{
++ struct timespec ats, delta;
++ struct vx_info *vxi;
++
++ if (!vx_flags(VXF_VIRT_TIME, 0))
++ return do_settimeofday(ts);
++
++ getnstimeofday(&ats);
++ delta = timespec_sub(*ts, ats);
++
++ vxi = current_vx_info();
++ vxi->cvirt.bias_ts = timespec_add(vxi->cvirt.bias_ts, delta);
++ return 0;
++}
++
++#endif
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cvirt_init.h linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt_init.h
+--- linux-3.0.9/kernel/vserver/cvirt_init.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt_init.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,70 @@
++
++
++extern uint64_t vx_idle_jiffies(void);
++
++static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt)
++{
++ uint64_t idle_jiffies = vx_idle_jiffies();
++ uint64_t nsuptime;
++
++ do_posix_clock_monotonic_gettime(&cvirt->bias_uptime);
++ nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec
++ * NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec;
++ cvirt->bias_clock = nsec_to_clock_t(nsuptime);
++ cvirt->bias_ts.tv_sec = 0;
++ cvirt->bias_ts.tv_nsec = 0;
++
++ jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle);
++ atomic_set(&cvirt->nr_threads, 0);
++ atomic_set(&cvirt->nr_running, 0);
++ atomic_set(&cvirt->nr_uninterruptible, 0);
++ atomic_set(&cvirt->nr_onhold, 0);
++
++ spin_lock_init(&cvirt->load_lock);
++ cvirt->load_last = jiffies;
++ atomic_set(&cvirt->load_updates, 0);
++ cvirt->load[0] = 0;
++ cvirt->load[1] = 0;
++ cvirt->load[2] = 0;
++ atomic_set(&cvirt->total_forks, 0);
++
++ spin_lock_init(&cvirt->syslog.logbuf_lock);
++ init_waitqueue_head(&cvirt->syslog.log_wait);
++ cvirt->syslog.log_start = 0;
++ cvirt->syslog.log_end = 0;
++ cvirt->syslog.con_start = 0;
++ cvirt->syslog.logged_chars = 0;
++}
++
++static inline
++void vx_info_init_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
++{
++ // cvirt_pc->cpustat = { 0 };
++}
++
++static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt)
++{
++#ifdef CONFIG_VSERVER_WARN
++ int value;
++#endif
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_threads)),
++ "!!! cvirt: %p[nr_threads] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_running)),
++ "!!! cvirt: %p[nr_running] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_uninterruptible)),
++ "!!! cvirt: %p[nr_uninterruptible] = %d on exit.",
++ cvirt, value);
++ vxwprintk_xid((value = atomic_read(&cvirt->nr_onhold)),
++ "!!! cvirt: %p[nr_onhold] = %d on exit.",
++ cvirt, value);
++ return;
++}
++
++static inline
++void vx_info_exit_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
++{
++ return;
++}
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/cvirt_proc.h linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt_proc.h
+--- linux-3.0.9/kernel/vserver/cvirt_proc.h 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/cvirt_proc.h 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,135 @@
++#ifndef _VX_CVIRT_PROC_H
++#define _VX_CVIRT_PROC_H
++
++#include <linux/nsproxy.h>
++#include <linux/mnt_namespace.h>
++#include <linux/ipc_namespace.h>
++#include <linux/utsname.h>
++#include <linux/ipc.h>
++
++
++static inline
++int vx_info_proc_nsproxy(struct nsproxy *nsproxy, char *buffer)
++{
++ struct mnt_namespace *ns;
++ struct uts_namespace *uts;
++ struct ipc_namespace *ipc;
++ struct path path;
++ char *pstr, *root;
++ int length = 0;
++
++ if (!nsproxy)
++ goto out;
++
++ length += sprintf(buffer + length,
++ "NSProxy:\t%p [%p,%p,%p]\n",
++ nsproxy, nsproxy->mnt_ns,
++ nsproxy->uts_ns, nsproxy->ipc_ns);
++
++ ns = nsproxy->mnt_ns;
++ if (!ns)
++ goto skip_ns;
++
++ pstr = kmalloc(PATH_MAX, GFP_KERNEL);
++ if (!pstr)
++ goto skip_ns;
++
++ path.mnt = ns->root;
++ path.dentry = ns->root->mnt_root;
++ root = d_path(&path, pstr, PATH_MAX - 2);
++ length += sprintf(buffer + length,
++ "Namespace:\t%p [#%u]\n"
++ "RootPath:\t%s\n",
++ ns, atomic_read(&ns->count),
++ root);
++ kfree(pstr);
++skip_ns:
++
++ uts = nsproxy->uts_ns;
++ if (!uts)
++ goto skip_uts;
++
++ length += sprintf(buffer + length,
++ "SysName:\t%.*s\n"
++ "NodeName:\t%.*s\n"
++ "Release:\t%.*s\n"
++ "Version:\t%.*s\n"
++ "Machine:\t%.*s\n"
++ "DomainName:\t%.*s\n",
++ __NEW_UTS_LEN, uts->name.sysname,
++ __NEW_UTS_LEN, uts->name.nodename,
++ __NEW_UTS_LEN, uts->name.release,
++ __NEW_UTS_LEN, uts->name.version,
++ __NEW_UTS_LEN, uts->name.machine,
++ __NEW_UTS_LEN, uts->name.domainname);
++skip_uts:
++
++ ipc = nsproxy->ipc_ns;
++ if (!ipc)
++ goto skip_ipc;
++
++ length += sprintf(buffer + length,
++ "SEMS:\t\t%d %d %d %d %d\n"
++ "MSG:\t\t%d %d %d\n"
++ "SHM:\t\t%lu %lu %d %d\n",
++ ipc->sem_ctls[0], ipc->sem_ctls[1],
++ ipc->sem_ctls[2], ipc->sem_ctls[3],
++ ipc->used_sems,
++ ipc->msg_ctlmax, ipc->msg_ctlmnb, ipc->msg_ctlmni,
++ (unsigned long)ipc->shm_ctlmax,
++ (unsigned long)ipc->shm_ctlall,
++ ipc->shm_ctlmni, ipc->shm_tot);
++skip_ipc:
++out:
++ return length;
++}
++
++
++#include <linux/sched.h>
++
++#define LOAD_INT(x) ((x) >> FSHIFT)
++#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * 100)
++
++static inline
++int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer)
++{
++ int length = 0;
++ int a, b, c;
++
++ length += sprintf(buffer + length,
++ "BiasUptime:\t%lu.%02lu\n",
++ (unsigned long)cvirt->bias_uptime.tv_sec,
++ (cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100)));
++
++ a = cvirt->load[0] + (FIXED_1 / 200);
++ b = cvirt->load[1] + (FIXED_1 / 200);
++ c = cvirt->load[2] + (FIXED_1 / 200);
++ length += sprintf(buffer + length,
++ "nr_threads:\t%d\n"
++ "nr_running:\t%d\n"
++ "nr_unintr:\t%d\n"
++ "nr_onhold:\t%d\n"
++ "load_updates:\t%d\n"
++ "loadavg:\t%d.%02d %d.%02d %d.%02d\n"
++ "total_forks:\t%d\n",
++ atomic_read(&cvirt->nr_threads),
++ atomic_read(&cvirt->nr_running),
++ atomic_read(&cvirt->nr_uninterruptible),
++ atomic_read(&cvirt->nr_onhold),
++ atomic_read(&cvirt->load_updates),
++ LOAD_INT(a), LOAD_FRAC(a),
++ LOAD_INT(b), LOAD_FRAC(b),
++ LOAD_INT(c), LOAD_FRAC(c),
++ atomic_read(&cvirt->total_forks));
++ return length;
++}
++
++static inline
++int vx_info_proc_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc,
++ char *buffer, int cpu)
++{
++ int length = 0;
++ return length;
++}
++
++#endif /* _VX_CVIRT_PROC_H */
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/debug.c linux-3.0.9-vs2.3.2.1/kernel/vserver/debug.c
+--- linux-3.0.9/kernel/vserver/debug.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/debug.c 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,32 @@
++/*
++ * kernel/vserver/debug.c
++ *
++ * Copyright (C) 2005-2007 Herbert Ptzl
++ *
++ * V0.01 vx_info dump support
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/vserver/context.h>
++
++
++void dump_vx_info(struct vx_info *vxi, int level)
++{
++ printk("vx_info %p[#%d, %d.%d, %4x]\n", vxi, vxi->vx_id,
++ atomic_read(&vxi->vx_usecnt),
++ atomic_read(&vxi->vx_tasks),
++ vxi->vx_state);
++ if (level > 0) {
++ __dump_vx_limit(&vxi->limit);
++ __dump_vx_sched(&vxi->sched);
++ __dump_vx_cvirt(&vxi->cvirt);
++ __dump_vx_cacct(&vxi->cacct);
++ }
++ printk("---\n");
++}
++
++
++EXPORT_SYMBOL_GPL(dump_vx_info);
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/device.c linux-3.0.9-vs2.3.2.1/kernel/vserver/device.c
+--- linux-3.0.9/kernel/vserver/device.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/device.c 2011-06-10 23:20:56.000000000 +0200
+@@ -0,0 +1,443 @@
++/*
++ * linux/kernel/vserver/device.c
++ *
++ * Linux-VServer: Device Support
++ *
++ * Copyright (C) 2006 Herbert Ptzl
++ * Copyright (C) 2007 Daniel Hokka Zakrisson
++ *
++ * V0.01 device mapping basics
++ * V0.02 added defaults
++ *
++ */
++
++#include <linux/slab.h>
++#include <linux/rcupdate.h>
++#include <linux/fs.h>
++#include <linux/namei.h>
++#include <linux/hash.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++#include <linux/vserver/base.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/context.h>
++#include <linux/vserver/device.h>
++#include <linux/vserver/device_cmd.h>
++
++
++#define DMAP_HASH_BITS 4
++
++
++struct vs_mapping {
++ union {
++ struct hlist_node hlist;
++ struct list_head list;
++ } u;
++#define dm_hlist u.hlist
++#define dm_list u.list
++ xid_t xid;
++ dev_t device;
++ struct vx_dmap_target target;
++};
++
++
++static struct hlist_head dmap_main_hash[1 << DMAP_HASH_BITS];
++
++static DEFINE_SPINLOCK(dmap_main_hash_lock);
++
++static struct vx_dmap_target dmap_defaults[2] = {
++ { .flags = DATTR_OPEN },
++ { .flags = DATTR_OPEN },
++};
++
++
++struct kmem_cache *dmap_cachep __read_mostly;
++
++int __init dmap_cache_init(void)
++{
++ dmap_cachep = kmem_cache_create("dmap_cache",
++ sizeof(struct vs_mapping), 0,
++ SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
++ return 0;
++}
++
++__initcall(dmap_cache_init);
++
++
++static inline unsigned int __hashval(dev_t dev, int bits)
++{
++ return hash_long((unsigned long)dev, bits);
++}
++
++
++/* __hash_mapping()
++ * add the mapping to the hash table
++ */
++static inline void __hash_mapping(struct vx_info *vxi, struct vs_mapping *vdm)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct hlist_head *head, *hash = dmap_main_hash;
++ int device = vdm->device;
++
++ spin_lock(hash_lock);
++ vxdprintk(VXD_CBIT(misc, 8), "__hash_mapping: %p[#%d] %08x:%08x",
++ vxi, vxi ? vxi->vx_id : 0, device, vdm->target.target);
++
++ head = &hash[__hashval(device, DMAP_HASH_BITS)];
++ hlist_add_head(&vdm->dm_hlist, head);
++ spin_unlock(hash_lock);
++}
++
++
++static inline int __mode_to_default(umode_t mode)
++{
++ switch (mode) {
++ case S_IFBLK:
++ return 0;
++ case S_IFCHR:
++ return 1;
++ default:
++ BUG();
++ }
++}
++
++
++/* __set_default()
++ * set a default
++ */
++static inline void __set_default(struct vx_info *vxi, umode_t mode,
++ struct vx_dmap_target *vdmt)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ spin_lock(hash_lock);
++
++ if (vxi)
++ vxi->dmap.targets[__mode_to_default(mode)] = *vdmt;
++ else
++ dmap_defaults[__mode_to_default(mode)] = *vdmt;
++
++
++ spin_unlock(hash_lock);
++
++ vxdprintk(VXD_CBIT(misc, 8), "__set_default: %p[#%u] %08x %04x",
++ vxi, vxi ? vxi->vx_id : 0, vdmt->target, vdmt->flags);
++}
++
++
++/* __remove_default()
++ * remove a default
++ */
++static inline int __remove_default(struct vx_info *vxi, umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ spin_lock(hash_lock);
++
++ if (vxi)
++ vxi->dmap.targets[__mode_to_default(mode)].flags = 0;
++ else /* remove == reset */
++ dmap_defaults[__mode_to_default(mode)].flags = DATTR_OPEN | mode;
++
++ spin_unlock(hash_lock);
++ return 0;
++}
++
++
++/* __find_mapping()
++ * find a mapping in the hash table
++ *
++ * caller must hold hash_lock
++ */
++static inline int __find_mapping(xid_t xid, dev_t device, umode_t mode,
++ struct vs_mapping **local, struct vs_mapping **global)
++{
++ struct hlist_head *hash = dmap_main_hash;
++ struct hlist_head *head = &hash[__hashval(device, DMAP_HASH_BITS)];
++ struct hlist_node *pos;
++ struct vs_mapping *vdm;
++
++ *local = NULL;
++ if (global)
++ *global = NULL;
++
++ hlist_for_each(pos, head) {
++ vdm = hlist_entry(pos, struct vs_mapping, dm_hlist);
++
++ if ((vdm->device == device) &&
++ !((vdm->target.flags ^ mode) & S_IFMT)) {
++ if (vdm->xid == xid) {
++ *local = vdm;
++ return 1;
++ } else if (global && vdm->xid == 0)
++ *global = vdm;
++ }
++ }
++
++ if (global && *global)
++ return 0;
++ else
++ return -ENOENT;
++}
++
++
++/* __lookup_mapping()
++ * find a mapping and store the result in target and flags
++ */
++static inline int __lookup_mapping(struct vx_info *vxi,
++ dev_t device, dev_t *target, int *flags, umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct vs_mapping *vdm, *global;
++ struct vx_dmap_target *vdmt;
++ int ret = 0;
++ xid_t xid = vxi->vx_id;
++ int index;
++
++ spin_lock(hash_lock);
++ if (__find_mapping(xid, device, mode, &vdm, &global) > 0) {
++ ret = 1;
++ vdmt = &vdm->target;
++ goto found;
++ }
++
++ index = __mode_to_default(mode);
++ if (vxi && vxi->dmap.targets[index].flags) {
++ ret = 2;
++ vdmt = &vxi->dmap.targets[index];
++ } else if (global) {
++ ret = 3;
++ vdmt = &global->target;
++ goto found;
++ } else {
++ ret = 4;
++ vdmt = &dmap_defaults[index];
++ }
++
++found:
++ if (target && (vdmt->flags & DATTR_REMAP))
++ *target = vdmt->target;
++ else if (target)
++ *target = device;
++ if (flags)
++ *flags = vdmt->flags;
++
++ spin_unlock(hash_lock);
++
++ return ret;
++}
++
++
++/* __remove_mapping()
++ * remove a mapping from the hash table
++ */
++static inline int __remove_mapping(struct vx_info *vxi, dev_t device,
++ umode_t mode)
++{
++ spinlock_t *hash_lock = &dmap_main_hash_lock;
++ struct vs_mapping *vdm = NULL;
++ int ret = 0;
++
++ spin_lock(hash_lock);
++
++ ret = __find_mapping((vxi ? vxi->vx_id : 0), device, mode, &vdm,
++ NULL);
++ vxdprintk(VXD_CBIT(misc, 8), "__remove_mapping: %p[#%d] %08x %04x",
++ vxi, vxi ? vxi->vx_id : 0, device, mode);
++ if (ret < 0)
++ goto out;
++ hlist_del(&vdm->dm_hlist);
++
++out:
++ spin_unlock(hash_lock);
++ if (vdm)
++ kmem_cache_free(dmap_cachep, vdm);
++ return ret;
++}
++
++
++
++int vs_map_device(struct vx_info *vxi,
++ dev_t device, dev_t *target, umode_t mode)
++{
++ int ret, flags = DATTR_MASK;
++
++ if (!vxi) {
++ if (target)
++ *target = device;
++ goto out;
++ }
++ ret = __lookup_mapping(vxi, device, target, &flags, mode);
++ vxdprintk(VXD_CBIT(misc, 8), "vs_map_device: %08x target: %08x flags: %04x mode: %04x mapped=%d",
++ device, target ? *target : 0, flags, mode, ret);
++out:
++ return (flags & DATTR_MASK);
++}
++
++
++
++static int do_set_mapping(struct vx_info *vxi,
++ dev_t device, dev_t target, int flags, umode_t mode)
++{
++ if (device) {
++ struct vs_mapping *new;
++
++ new = kmem_cache_alloc(dmap_cachep, GFP_KERNEL);
++ if (!new)
++ return -ENOMEM;
++
++ INIT_HLIST_NODE(&new->dm_hlist);
++ new->device = device;
++ new->target.target = target;
++ new->target.flags = flags | mode;
++ new->xid = (vxi ? vxi->vx_id : 0);
++
++ vxdprintk(VXD_CBIT(misc, 8), "do_set_mapping: %08x target: %08x flags: %04x", device, target, flags);
++ __hash_mapping(vxi, new);
++ } else {
++ struct vx_dmap_target new = {
++ .target = target,
++ .flags = flags | mode,
++ };
++ __set_default(vxi, mode, &new);
++ }
++ return 0;
++}
++
++
++static int do_unset_mapping(struct vx_info *vxi,
++ dev_t device, dev_t target, int flags, umode_t mode)
++{
++ int ret = -EINVAL;
++
++ if (device) {
++ ret = __remove_mapping(vxi, device, mode);
++ if (ret < 0)
++ goto out;
++ } else {
++ ret = __remove_default(vxi, mode);
++ if (ret < 0)
++ goto out;
++ }
++
++out:
++ return ret;
++}
++
++
++static inline int __user_device(const char __user *name, dev_t *dev,
++ umode_t *mode)
++{
++ struct nameidata nd;
++ int ret;
++
++ if (!name) {
++ *dev = 0;
++ return 0;
++ }
++ ret = user_lpath(name, &nd.path);
++ if (ret)
++ return ret;
++ if (nd.path.dentry->d_inode) {
++ *dev = nd.path.dentry->d_inode->i_rdev;
++ *mode = nd.path.dentry->d_inode->i_mode;
++ }
++ path_put(&nd.path);
++ return 0;
++}
++
++static inline int __mapping_mode(dev_t device, dev_t target,
++ umode_t device_mode, umode_t target_mode, umode_t *mode)
++{
++ if (device)
++ *mode = device_mode & S_IFMT;
++ else if (target)
++ *mode = target_mode & S_IFMT;
++ else
++ return -EINVAL;
++
++ /* if both given, device and target mode have to match */
++ if (device && target &&
++ ((device_mode ^ target_mode) & S_IFMT))
++ return -EINVAL;
++ return 0;
++}
++
++
++static inline int do_mapping(struct vx_info *vxi, const char __user *device_path,
++ const char __user *target_path, int flags, int set)
++{
++ dev_t device = ~0, target = ~0;
++ umode_t device_mode = 0, target_mode = 0, mode;
++ int ret;
++
++ ret = __user_device(device_path, &device, &device_mode);
++ if (ret)
++ return ret;
++ ret = __user_device(target_path, &target, &target_mode);
++ if (ret)
++ return ret;
++
++ ret = __mapping_mode(device, target,
++ device_mode, target_mode, &mode);
++ if (ret)
++ return ret;
++
++ if (set)
++ return do_set_mapping(vxi, device, target,
++ flags, mode);
++ else
++ return do_unset_mapping(vxi, device, target,
++ flags, mode);
++}
++
++
++int vc_set_mapping(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, vc_data.device, vc_data.target,
++ vc_data.flags, 1);
++}
++
++int vc_unset_mapping(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, vc_data.device, vc_data.target,
++ vc_data.flags, 0);
++}
++
++
++#ifdef CONFIG_COMPAT
++
++int vc_set_mapping_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
++ compat_ptr(vc_data.target_ptr), vc_data.flags, 1);
++}
++
++int vc_unset_mapping_x32(struct vx_info *vxi, void __user *data)
++{
++ struct vcmd_set_mapping_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
++ compat_ptr(vc_data.target_ptr), vc_data.flags, 0);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/dlimit.c linux-3.0.9-vs2.3.2.1/kernel/vserver/dlimit.c
+--- linux-3.0.9/kernel/vserver/dlimit.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/dlimit.c 2011-06-10 23:20:56.000000000 +0200
+@@ -0,0 +1,531 @@
++/*
++ * linux/kernel/vserver/dlimit.c
++ *
++ * Virtual Server: Context Disk Limits
++ *
++ * Copyright (C) 2004-2009 Herbert Ptzl
++ *
++ * V0.01 initial version
++ * V0.02 compat32 splitup
++ * V0.03 extended interface
++ *
++ */
++
++#include <linux/statfs.h>
++#include <linux/sched.h>
++#include <linux/namei.h>
++#include <linux/vs_tag.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/dlimit_cmd.h>
++#include <linux/slab.h>
++// #include <linux/gfp.h>
++
++#include <asm/uaccess.h>
++
++/* __alloc_dl_info()
++
++ * allocate an initialized dl_info struct
++ * doesn't make it visible (hash) */
++
++static struct dl_info *__alloc_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct dl_info *new = NULL;
++
++ vxdprintk(VXD_CBIT(dlim, 5),
++ "alloc_dl_info(%p,%d)*", sb, tag);
++
++ /* would this benefit from a slab cache? */
++ new = kmalloc(sizeof(struct dl_info), GFP_KERNEL);
++ if (!new)
++ return 0;
++
++ memset(new, 0, sizeof(struct dl_info));
++ new->dl_tag = tag;
++ new->dl_sb = sb;
++ // INIT_RCU_HEAD(&new->dl_rcu);
++ INIT_HLIST_NODE(&new->dl_hlist);
++ spin_lock_init(&new->dl_lock);
++ atomic_set(&new->dl_refcnt, 0);
++ atomic_set(&new->dl_usecnt, 0);
++
++ /* rest of init goes here */
++
++ vxdprintk(VXD_CBIT(dlim, 4),
++ "alloc_dl_info(%p,%d) = %p", sb, tag, new);
++ return new;
++}
++
++/* __dealloc_dl_info()
++
++ * final disposal of dl_info */
++
++static void __dealloc_dl_info(struct dl_info *dli)
++{
++ vxdprintk(VXD_CBIT(dlim, 4),
++ "dealloc_dl_info(%p)", dli);
++
++ dli->dl_hlist.next = LIST_POISON1;
++ dli->dl_tag = -1;
++ dli->dl_sb = 0;
++
++ BUG_ON(atomic_read(&dli->dl_usecnt));
++ BUG_ON(atomic_read(&dli->dl_refcnt));
++
++ kfree(dli);
++}
++
++
++/* hash table for dl_info hash */
++
++#define DL_HASH_SIZE 13
++
++struct hlist_head dl_info_hash[DL_HASH_SIZE];
++
++static DEFINE_SPINLOCK(dl_info_hash_lock);
++
++
++static inline unsigned int __hashval(struct super_block *sb, tag_t tag)
++{
++ return ((tag ^ (unsigned long)sb) % DL_HASH_SIZE);
++}
++
++
++
++/* __hash_dl_info()
++
++ * add the dli to the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __hash_dl_info(struct dl_info *dli)
++{
++ struct hlist_head *head;
++
++ vxdprintk(VXD_CBIT(dlim, 6),
++ "__hash_dl_info: %p[#%d]", dli, dli->dl_tag);
++ get_dl_info(dli);
++ head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_tag)];
++ hlist_add_head_rcu(&dli->dl_hlist, head);
++}
++
++/* __unhash_dl_info()
++
++ * remove the dli from the global hash table
++ * requires the hash_lock to be held */
++
++static inline void __unhash_dl_info(struct dl_info *dli)
++{
++ vxdprintk(VXD_CBIT(dlim, 6),
++ "__unhash_dl_info: %p[#%d]", dli, dli->dl_tag);
++ hlist_del_rcu(&dli->dl_hlist);
++ put_dl_info(dli);
++}
++
++
++/* __lookup_dl_info()
++
++ * requires the rcu_read_lock()
++ * doesn't increment the dl_refcnt */
++
++static inline struct dl_info *__lookup_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct hlist_head *head = &dl_info_hash[__hashval(sb, tag)];
++ struct hlist_node *pos;
++ struct dl_info *dli;
++
++ hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) {
++
++ if (dli->dl_tag == tag && dli->dl_sb == sb) {
++ return dli;
++ }
++ }
++ return NULL;
++}
++
++
++struct dl_info *locate_dl_info(struct super_block *sb, tag_t tag)
++{
++ struct dl_info *dli;
++
++ rcu_read_lock();
++ dli = get_dl_info(__lookup_dl_info(sb, tag));
++ vxdprintk(VXD_CBIT(dlim, 7),
++ "locate_dl_info(%p,#%d) = %p", sb, tag, dli);
++ rcu_read_unlock();
++ return dli;
++}
++
++void rcu_free_dl_info(struct rcu_head *head)
++{
++ struct dl_info *dli = container_of(head, struct dl_info, dl_rcu);
++ int usecnt, refcnt;
++
++ BUG_ON(!dli || !head);
++
++ usecnt = atomic_read(&dli->dl_usecnt);
++ BUG_ON(usecnt < 0);
++
++ refcnt = atomic_read(&dli->dl_refcnt);
++ BUG_ON(refcnt < 0);
++
++ vxdprintk(VXD_CBIT(dlim, 3),
++ "rcu_free_dl_info(%p)", dli);
++ if (!usecnt)
++ __dealloc_dl_info(dli);
++ else
++ printk("!!! rcu didn't free\n");
++}
++
++
++
++
++static int do_addrem_dlimit(uint32_t id, const char __user *name,
++ uint32_t flags, int add)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ if (add) {
++ dli = __alloc_dl_info(sb, id);
++ spin_lock(&dl_info_hash_lock);
++
++ ret = -EEXIST;
++ if (__lookup_dl_info(sb, id))
++ goto out_unlock;
++ __hash_dl_info(dli);
++ dli = NULL;
++ } else {
++ spin_lock(&dl_info_hash_lock);
++ dli = __lookup_dl_info(sb, id);
++
++ ret = -ESRCH;
++ if (!dli)
++ goto out_unlock;
++ __unhash_dl_info(dli);
++ }
++ ret = 0;
++ out_unlock:
++ spin_unlock(&dl_info_hash_lock);
++ if (add && dli)
++ __dealloc_dl_info(dli);
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++int vc_add_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1);
++}
++
++int vc_rem_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0);
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_add_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id,
++ compat_ptr(vc_data.name_ptr), vc_data.flags, 1);
++}
++
++int vc_rem_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_addrem_dlimit(id,
++ compat_ptr(vc_data.name_ptr), vc_data.flags, 0);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++static inline
++int do_set_dlimit(uint32_t id, const char __user *name,
++ uint32_t space_used, uint32_t space_total,
++ uint32_t inodes_used, uint32_t inodes_total,
++ uint32_t reserved, uint32_t flags)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ /* sanity checks */
++ if ((reserved != CDLIM_KEEP &&
++ reserved > 100) ||
++ (inodes_used != CDLIM_KEEP &&
++ inodes_used > inodes_total) ||
++ (space_used != CDLIM_KEEP &&
++ space_used > space_total))
++ goto out_release;
++
++ ret = -ESRCH;
++ dli = locate_dl_info(sb, id);
++ if (!dli)
++ goto out_release;
++
++ spin_lock(&dli->dl_lock);
++
++ if (inodes_used != CDLIM_KEEP)
++ dli->dl_inodes_used = inodes_used;
++ if (inodes_total != CDLIM_KEEP)
++ dli->dl_inodes_total = inodes_total;
++ if (space_used != CDLIM_KEEP)
++ dli->dl_space_used = dlimit_space_32to64(
++ space_used, flags, DLIMS_USED);
++
++ if (space_total == CDLIM_INFINITY)
++ dli->dl_space_total = DLIM_INFINITY;
++ else if (space_total != CDLIM_KEEP)
++ dli->dl_space_total = dlimit_space_32to64(
++ space_total, flags, DLIMS_TOTAL);
++
++ if (reserved != CDLIM_KEEP)
++ dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100;
++
++ spin_unlock(&dli->dl_lock);
++
++ put_dl_info(dli);
++ ret = 0;
++
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++int vc_set_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_dlimit(id, vc_data.name,
++ vc_data.space_used, vc_data.space_total,
++ vc_data.inodes_used, vc_data.inodes_total,
++ vc_data.reserved, vc_data.flags);
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_set_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0_x32 vc_data;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ return do_set_dlimit(id, compat_ptr(vc_data.name_ptr),
++ vc_data.space_used, vc_data.space_total,
++ vc_data.inodes_used, vc_data.inodes_total,
++ vc_data.reserved, vc_data.flags);
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++static inline
++int do_get_dlimit(uint32_t id, const char __user *name,
++ uint32_t *space_used, uint32_t *space_total,
++ uint32_t *inodes_used, uint32_t *inodes_total,
++ uint32_t *reserved, uint32_t *flags)
++{
++ struct path path;
++ int ret;
++
++ ret = user_lpath(name, &path);
++ if (!ret) {
++ struct super_block *sb;
++ struct dl_info *dli;
++
++ ret = -EINVAL;
++ if (!path.dentry->d_inode)
++ goto out_release;
++ if (!(sb = path.dentry->d_inode->i_sb))
++ goto out_release;
++
++ ret = -ESRCH;
++ dli = locate_dl_info(sb, id);
++ if (!dli)
++ goto out_release;
++
++ spin_lock(&dli->dl_lock);
++ *inodes_used = dli->dl_inodes_used;
++ *inodes_total = dli->dl_inodes_total;
++
++ *space_used = dlimit_space_64to32(
++ dli->dl_space_used, flags, DLIMS_USED);
++
++ if (dli->dl_space_total == DLIM_INFINITY)
++ *space_total = CDLIM_INFINITY;
++ else
++ *space_total = dlimit_space_64to32(
++ dli->dl_space_total, flags, DLIMS_TOTAL);
++
++ *reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10);
++ spin_unlock(&dli->dl_lock);
++
++ put_dl_info(dli);
++ ret = -EFAULT;
++
++ ret = 0;
++ out_release:
++ path_put(&path);
++ }
++ return ret;
++}
++
++
++int vc_get_dlimit(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_dlimit(id, vc_data.name,
++ &vc_data.space_used, &vc_data.space_total,
++ &vc_data.inodes_used, &vc_data.inodes_total,
++ &vc_data.reserved, &vc_data.flags);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_get_dlimit_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_ctx_dlimit_v0_x32 vc_data;
++ int ret;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr),
++ &vc_data.space_used, &vc_data.space_total,
++ &vc_data.inodes_used, &vc_data.inodes_total,
++ &vc_data.reserved, &vc_data.flags);
++ if (ret)
++ return ret;
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return 0;
++}
++
++#endif /* CONFIG_COMPAT */
++
++
++void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf)
++{
++ struct dl_info *dli;
++ __u64 blimit, bfree, bavail;
++ __u32 ifree;
++
++ dli = locate_dl_info(sb, dx_current_tag());
++ if (!dli)
++ return;
++
++ spin_lock(&dli->dl_lock);
++ if (dli->dl_inodes_total == (unsigned long)DLIM_INFINITY)
++ goto no_ilim;
++
++ /* reduce max inodes available to limit */
++ if (buf->f_files > dli->dl_inodes_total)
++ buf->f_files = dli->dl_inodes_total;
++
++ ifree = dli->dl_inodes_total - dli->dl_inodes_used;
++ /* reduce free inodes to min */
++ if (ifree < buf->f_ffree)
++ buf->f_ffree = ifree;
++
++no_ilim:
++ if (dli->dl_space_total == DLIM_INFINITY)
++ goto no_blim;
++
++ blimit = dli->dl_space_total >> sb->s_blocksize_bits;
++
++ if (dli->dl_space_total < dli->dl_space_used)
++ bfree = 0;
++ else
++ bfree = (dli->dl_space_total - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++
++ bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult);
++ if (bavail < dli->dl_space_used)
++ bavail = 0;
++ else
++ bavail = (bavail - dli->dl_space_used)
++ >> sb->s_blocksize_bits;
++
++ /* reduce max space available to limit */
++ if (buf->f_blocks > blimit)
++ buf->f_blocks = blimit;
++
++ /* reduce free space to min */
++ if (bfree < buf->f_bfree)
++ buf->f_bfree = bfree;
++
++ /* reduce avail space to min */
++ if (bavail < buf->f_bavail)
++ buf->f_bavail = bavail;
++
++no_blim:
++ spin_unlock(&dli->dl_lock);
++ put_dl_info(dli);
++
++ return;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(locate_dl_info);
++EXPORT_SYMBOL_GPL(rcu_free_dl_info);
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/helper.c linux-3.0.9-vs2.3.2.1/kernel/vserver/helper.c
+--- linux-3.0.9/kernel/vserver/helper.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/helper.c 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,223 @@
++/*
++ * linux/kernel/vserver/helper.c
++ *
++ * Virtual Context Support
++ *
++ * Copyright (C) 2004-2007 Herbert Ptzl
++ *
++ * V0.01 basic helper
++ *
++ */
++
++#include <linux/kmod.h>
++#include <linux/reboot.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vserver/signal.h>
++
++
++char vshelper_path[255] = "/sbin/vshelper";
++
++
++static int do_vshelper(char *name, char *argv[], char *envp[], int sync)
++{
++ int ret;
++
++ if ((ret = call_usermodehelper(name, argv, envp, sync))) {
++ printk( KERN_WARNING
++ "%s: (%s %s) returned %s with %d\n",
++ name, argv[1], argv[2],
++ sync ? "sync" : "async", ret);
++ }
++ vxdprintk(VXD_CBIT(switch, 4),
++ "%s: (%s %s) returned %s with %d",
++ name, argv[1], argv[2], sync ? "sync" : "async", ret);
++ return ret;
++}
++
++/*
++ * vshelper path is set via /proc/sys
++ * invoked by vserver sys_reboot(), with
++ * the following arguments
++ *
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "restart", "halt", "poweroff", ...
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_reboot_helper(struct vx_info *vxi, int cmd, void __user *arg)
++{
++ char id_buf[8], cmd_buf[16];
++ char uid_buf[16], pid_buf[16];
++ int ret;
++
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
++ uid_buf, pid_buf, cmd_buf, 0};
++
++ if (vx_info_state(vxi, VXS_HELPER))
++ return -EAGAIN;
++ vxi->vx_state |= VXS_HELPER;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
++
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++ snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current_uid());
++ snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid);
++
++ switch (cmd) {
++ case LINUX_REBOOT_CMD_RESTART:
++ argv[1] = "restart";
++ break;
++
++ case LINUX_REBOOT_CMD_HALT:
++ argv[1] = "halt";
++ break;
++
++ case LINUX_REBOOT_CMD_POWER_OFF:
++ argv[1] = "poweroff";
++ break;
++
++ case LINUX_REBOOT_CMD_SW_SUSPEND:
++ argv[1] = "swsusp";
++ break;
++
++ case LINUX_REBOOT_CMD_OOM:
++ argv[1] = "oom";
++ break;
++
++ default:
++ vxi->vx_state &= ~VXS_HELPER;
++ return 0;
++ }
++
++ ret = do_vshelper(vshelper_path, argv, envp, 0);
++ vxi->vx_state &= ~VXS_HELPER;
++ __wakeup_vx_info(vxi);
++ return (ret) ? -EPERM : 0;
++}
++
++
++long vs_reboot(unsigned int cmd, void __user *arg)
++{
++ struct vx_info *vxi = current_vx_info();
++ long ret = 0;
++
++ vxdprintk(VXD_CBIT(misc, 5),
++ "vs_reboot(%p[#%d],%u)",
++ vxi, vxi ? vxi->vx_id : 0, cmd);
++
++ ret = vs_reboot_helper(vxi, cmd, arg);
++ if (ret)
++ return ret;
++
++ vxi->reboot_cmd = cmd;
++ if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) {
++ switch (cmd) {
++ case LINUX_REBOOT_CMD_RESTART:
++ case LINUX_REBOOT_CMD_HALT:
++ case LINUX_REBOOT_CMD_POWER_OFF:
++ vx_info_kill(vxi, 0, SIGKILL);
++ vx_info_kill(vxi, 1, SIGKILL);
++ default:
++ break;
++ }
++ }
++ return 0;
++}
++
++long vs_oom_action(unsigned int cmd)
++{
++ struct vx_info *vxi = current_vx_info();
++ long ret = 0;
++
++ vxdprintk(VXD_CBIT(misc, 5),
++ "vs_oom_action(%p[#%d],%u)",
++ vxi, vxi ? vxi->vx_id : 0, cmd);
++
++ ret = vs_reboot_helper(vxi, cmd, NULL);
++ if (ret)
++ return ret;
++
++ vxi->reboot_cmd = cmd;
++ if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) {
++ vx_info_kill(vxi, 0, SIGKILL);
++ vx_info_kill(vxi, 1, SIGKILL);
++ }
++ return 0;
++}
++
++/*
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "startup", "shutdown"
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_state_change(struct vx_info *vxi, unsigned int cmd)
++{
++ char id_buf[8], cmd_buf[16];
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++ if (!vx_info_flags(vxi, VXF_SC_HELPER, 0))
++ return 0;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++ switch (cmd) {
++ case VSC_STARTUP:
++ argv[1] = "startup";
++ break;
++ case VSC_SHUTDOWN:
++ argv[1] = "shutdown";
++ break;
++ default:
++ return 0;
++ }
++
++ return do_vshelper(vshelper_path, argv, envp, 1);
++}
++
++
++/*
++ * argv [0] = vshelper_path;
++ * argv [1] = action: "netup", "netdown"
++ * argv [2] = context identifier
++ *
++ * envp [*] = type-specific parameters
++ */
++
++long vs_net_change(struct nx_info *nxi, unsigned int cmd)
++{
++ char id_buf[8], cmd_buf[16];
++ char *argv[] = {vshelper_path, NULL, id_buf, 0};
++ char *envp[] = {"HOME=/", "TERM=linux",
++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++ if (!nx_info_flags(nxi, NXF_SC_HELPER, 0))
++ return 0;
++
++ snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id);
++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++ switch (cmd) {
++ case VSC_NETUP:
++ argv[1] = "netup";
++ break;
++ case VSC_NETDOWN:
++ argv[1] = "netdown";
++ break;
++ default:
++ return 0;
++ }
++
++ return do_vshelper(vshelper_path, argv, envp, 1);
++}
++
+diff -NurpP --minimal linux-3.0.9/kernel/vserver/history.c linux-3.0.9-vs2.3.2.1/kernel/vserver/history.c
+--- linux-3.0.9/kernel/vserver/history.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-3.0.9-vs2.3.2.1/kernel/vserver/history.c 2011-06-10 22:11:24.000000000 +0200
+@@ -0,0 +1,258 @@
++/*
++ * kernel/vserver/history.c
++ *
++ * Virtual Context History Backtrace
++ *
++ * Copyright (C) 2004-2007 Herbert Ptzl
++ *
++ * V0.01 basic structure
++ * V0.02 hash/unhash and trace
++ * V0.03 preemption fixes
++ *
++ */
++
++#include <linux/module.h>
++#include <asm/uaccess.h>
++
++#include <linux/vserver/context.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/debug_cmd.h>
++#include <linux/vserver/history.h>
++
++
++#ifdef CONFIG_VSERVER_HISTORY
++#define VXH_SIZE CONFIG_VSERVER_HISTORY_SIZE
++#else
++#define VXH_SIZE 64
++#endif
++
++struct _vx_history {
++ unsigned int counter;
++
++ struct _vx_hist_entry entry[VXH_SIZE + 1];
++};
++
++
++DEFINE_PER_CPU(struct _vx_history, vx_history_buffer);
++
++unsigned volatile int vxh_active = 1;
++
++static atomic_t sequence = ATOMIC_INIT(0);
++
++
++/* vxh_advance()
++
++ * requires disabled preemption */
++
++struct _vx_hist_entry *vxh_advance(void *loc)
++{
++ unsigned int cpu = smp_processor_id();
++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
++ struct _vx_hist_entry *entry;
++ unsigned int index;
++
++ index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE;
++ entry = &hist->entry[index];
++
++ entry->seq = atomic_inc_return(&sequence);
++ entry->loc = loc;
++ return entry;
++}
++
++EXPORT_SYMBOL_GPL(vxh_advance);
++
++
++#define VXH_LOC_FMTS "(#%04x,*%d):%p"
++
++#define VXH_LOC_ARGS(e) (e)->seq, cpu, (e)->loc
++
++
++#define VXH_VXI_FMTS "%p[#%d,%d.%d]"
++
++#define VXH_VXI_ARGS(e) (e)->vxi.ptr, \
++ (e)->vxi.ptr ? (e)->vxi.xid : 0, \
++ (e)->vxi.ptr ? (e)->vxi.usecnt : 0, \
++ (e)->vxi.ptr ? (e)->vxi.tasks : 0
++
++void vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu)
++{
++ switch (e->type) {
++ case VXH_THROW_OOPS:
++ printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e));
++ break;
++
++ case VXH_GET_VX_INFO:
++ case VXH_PUT_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_GET_VX_INFO) ? "get" : "put",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_INIT_VX_INFO:
++ case VXH_SET_VX_INFO:
++ case VXH_CLR_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_INIT_VX_INFO) ? "init" :
++ ((e->type == VXH_SET_VX_INFO) ? "set" : "clr"),
++ VXH_VXI_ARGS(e), e->sc.data);
++ break;
++
++ case VXH_CLAIM_VX_INFO:
++ case VXH_RELEASE_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_CLAIM_VX_INFO) ? "claim" : "release",
++ VXH_VXI_ARGS(e), e->sc.data);
++ break;
++
++ case VXH_ALLOC_VX_INFO:
++ case VXH_DEALLOC_VX_INFO:
++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_ALLOC_VX_INFO) ? "alloc" : "dealloc",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_HASH_VX_INFO:
++ case VXH_UNHASH_VX_INFO:
++ printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_HASH_VX_INFO) ? "hash" : "unhash",
++ VXH_VXI_ARGS(e));
++ break;
++
++ case VXH_LOC_VX_INFO:
++ case VXH_LOOKUP_VX_INFO:
++ case VXH_CREATE_VX_INFO:
++ printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n",
++ VXH_LOC_ARGS(e),
++ (e->type == VXH_CREATE_VX_INFO) ? "create" :
++ ((e->type == VXH_LOC_VX_INFO) ? "loc" : "lookup"),
++ e->ll.arg, VXH_VXI_ARGS(e));
++ break;
++ }
++}
++
++static void __vxh_dump_history(void)
++{
++ unsigned int i, cpu;
++
++ printk("History:\tSEQ: %8x\tNR_CPUS: %d\n",
++ atomic_read(&sequence), NR_CPUS);
++
++ for (i = 0; i < VXH_SIZE; i++) {
++ for_each_online_cpu(cpu) {
++ struct _vx_history *hist =
++ &per_cpu(vx_history_buffer, cpu);
++ unsigned int index = (hist->counter - i) % VXH_SIZE;
++ struct _vx_hist_entry *entry = &hist->entry[index];
++
++ vxh_dump_entry(entry, cpu);
++ }
++ }
++}
++
++void vxh_dump_history(void)
++{
++ vxh_active = 0;
++#ifdef CONFIG_SMP
++ local_irq_enable();
++ smp_send_stop();
++ local_irq_disable();
++#endif
++ __vxh_dump_history();
++}
++
++
++/* vserver syscall commands below here */
++
++
++int vc_dump_history(uint32_t id)
++{
++ vxh_active = 0;
++ __vxh_dump_history();
++ vxh_active = 1;
++
++ return 0;
++}
++
++
++int do_read_history(struct __user _vx_hist_entry *data,
++ int cpu, uint32_t *index, uint32_t *count)
++{
++ int pos, ret = 0;
++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
++ int end = hist->counter;
++ int start = end - VXH_SIZE + 2;
++ int idx = *index;
++
++ /* special case: get current pos */
++ if (!*count) {
++ *index = end;
++ return 0;
++ }
++
++ /* have we lost some data? */
++ if (idx < start)
++ idx = start;
++
++ for (pos = 0; (pos < *count) && (idx < end); pos++, idx++) {
++ struct _vx_hist_entry *entry =
++ &hist->entry[idx % VXH_SIZE];
++
++ /* send entry to userspace */
++ ret = copy_to_user(&data[pos], entry, sizeof(*entry));
++ if (ret)
++ break;
++ }
++ /* save new index and count */
++ *index = idx;
++ *count = pos;
++ return ret ? ret : (*index < end);
++}
++
++int vc_read_history(uint32_t id, void __user *data)
++{
++ struct vcmd_read_history_v0 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_history((struct __user _vx_hist_entry *)vc_data.data,
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;
++}
++
++#ifdef CONFIG_COMPAT
++
++int vc_read_history_x32(uint32_t id, void __user *data)
++{
++ struct vcmd_read_history_v0_x32 vc_data;
++ int ret;
++
++ if (id >= NR_CPUS)
++ return -EINVAL;
++
++ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++ return -EFAULT;
++
++ ret = do_read_history((struct __user _vx_hist_entry *)
++ compat_ptr(vc_data.data_ptr),
++ id, &vc_data.index, &vc_data.count);
++
++ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++ return -EFAULT;
++ return ret;