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authorNatanael Copa <ncopa@alpinelinux.org>2012-12-17 15:29:17 +0000
committerNatanael Copa <ncopa@alpinelinux.org>2012-12-17 15:29:50 +0000
commit55308616857799c744cd6ba246e2ba4d1806a07f (patch)
tree1583b9f7b26b66b91eb55f4639ec1722971b4313
parent6ec817c66b2093dd09cb105aef52d889ab6edbbc (diff)
downloadaports-55308616857799c744cd6ba246e2ba4d1806a07f.tar.bz2
aports-55308616857799c744cd6ba246e2ba4d1806a07f.tar.xz
main/linux-vserver: upgrade to 3.6.10-vs2.3.4.6
ref #1525
-rw-r--r--main/linux-vserver/APKBUILD16
-rw-r--r--main/linux-vserver/kernelconfig.x863
-rw-r--r--main/linux-vserver/kernelconfig.x86_643
-rw-r--r--main/linux-vserver/patch-3.6.6-vs2.3.4.3-noxfs-nocow.diff25752
-rw-r--r--main/linux-vserver/patch-3.6.6-vs2.3.4.3.1-noxfs-nocow.diff25752
5 files changed, 12 insertions, 51514 deletions
diff --git a/main/linux-vserver/APKBUILD b/main/linux-vserver/APKBUILD
index 0208ff04bc..6c0000c704 100644
--- a/main/linux-vserver/APKBUILD
+++ b/main/linux-vserver/APKBUILD
@@ -2,9 +2,9 @@
_flavor=vserver
pkgname=linux-${_flavor}
-pkgver=3.6.6
-pkgrel=1
-_vsver=vs2.3.4.3.1-noxfs-nocow
+pkgver=3.6.10
+pkgrel=0
+_vsver=vs2.3.4.6
if [ "${pkgver##*.*.*}" = "$pkgver" ]; then
_kernver=$pkgver
@@ -21,7 +21,7 @@ _config=${config:-kernelconfig.${CARCH}}
install=
source="http://www.kernel.org/pub/linux/kernel/v3.x/linux-$_kernver.tar.xz
http://www.kernel.org/pub/linux/kernel/v3.x/patch-$pkgver.xz
- patch-$pkgver-$_vsver.diff
+ http://vserver.13thfloor.at/Experimental/patch-$pkgver-$_vsver.diff
kernelconfig.x86
kernelconfig.x86_64
"
@@ -136,7 +136,7 @@ dev() {
}
md5sums="1a1760420eac802c541a20ab51a093d1 linux-3.6.tar.xz
-11d6d8749d4612a77f43f0531c0f2824 patch-3.6.6.xz
-1e24532ef919846f5711fb42565ada15 patch-3.6.6-vs2.3.4.3.1-noxfs-nocow.diff
-61ebfebc08753b2bbd1d52a71da62395 kernelconfig.x86
-2a648d04d03e44334c8dcf48f8ebe4dc kernelconfig.x86_64"
+406a52f90a2ddc78a3ecdf4fe46e7cf7 patch-3.6.10.xz
+ec3f4d86c1d2d174bf212d978e4b1f26 patch-3.6.10-vs2.3.4.6.diff
+b28263bb0d529a80d4f13fbdd76520b2 kernelconfig.x86
+1e9e12d5bd63552127331b875a554992 kernelconfig.x86_64"
diff --git a/main/linux-vserver/kernelconfig.x86 b/main/linux-vserver/kernelconfig.x86
index 320c459707..a445394ddf 100644
--- a/main/linux-vserver/kernelconfig.x86
+++ b/main/linux-vserver/kernelconfig.x86
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/i386 3.6.6-vs2.3.4.3-noxfs-nocow Kernel Configuration
+# Linux/i386 3.6.10-vs2.3.4.6 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
@@ -5270,6 +5270,7 @@ CONFIG_VSERVER_CONTEXTS=256
CONFIG_VSERVER_WARN=y
CONFIG_VSERVER_WARN_DEVPTS=y
# CONFIG_VSERVER_DEBUG is not set
+# CONFIG_VSERVER_EXTRA_MNT_CHECK is not set
CONFIG_QUOTES_ISO8859=y
# CONFIG_QUOTES_UTF8 is not set
# CONFIG_QUOTES_ASCII is not set
diff --git a/main/linux-vserver/kernelconfig.x86_64 b/main/linux-vserver/kernelconfig.x86_64
index 3c24fd30a1..83ecfcb222 100644
--- a/main/linux-vserver/kernelconfig.x86_64
+++ b/main/linux-vserver/kernelconfig.x86_64
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Linux/x86_64 3.6.6-vs2.3.4.3-noxfs-nocow Kernel Configuration
+# Linux/x86_64 3.6.10-vs2.3.4.6 Kernel Configuration
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
@@ -5240,6 +5240,7 @@ CONFIG_VSERVER_CONTEXTS=768
CONFIG_VSERVER_WARN=y
CONFIG_VSERVER_WARN_DEVPTS=y
# CONFIG_VSERVER_DEBUG is not set
+# CONFIG_VSERVER_EXTRA_MNT_CHECK is not set
CONFIG_QUOTES_ISO8859=y
# CONFIG_QUOTES_UTF8 is not set
# CONFIG_QUOTES_ASCII is not set
diff --git a/main/linux-vserver/patch-3.6.6-vs2.3.4.3-noxfs-nocow.diff b/main/linux-vserver/patch-3.6.6-vs2.3.4.3-noxfs-nocow.diff
deleted file mode 100644
index 174508fedb..0000000000
--- a/main/linux-vserver/patch-3.6.6-vs2.3.4.3-noxfs-nocow.diff
+++ /dev/null
@@ -1,25752 +0,0 @@
-diff -NurpP --minimal linux-3.6/Documentation/vserver/debug.txt linux-3.6-vs2.3.4.3-noxfs-nocow/Documentation/vserver/debug.txt
---- linux-3.6/Documentation/vserver/debug.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/Documentation/vserver/debug.txt 2012-10-04 18:46:59.000000000 +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-3.6/Makefile linux-3.6-vs2.3.4.3-noxfs-nocow/Makefile
---- linux-3.6/Makefile 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/Makefile 2012-10-09 14:44:29.000000000 +0200
-@@ -1,7 +1,7 @@
- VERSION = 3
- PATCHLEVEL = 6
- SUBLEVEL = 6
--EXTRAVERSION =
-+EXTRAVERSION = -vs2.3.4.3-noxfs-nocow
- NAME = Terrified Chipmunk
-
- # *DOCUMENTATION*
-diff -NurpP --minimal linux-3.6/arch/alpha/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/Kconfig
---- linux-3.6/arch/alpha/Kconfig 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/Kconfig 2012-10-04 18:46:59.000000000 +0200
-@@ -664,6 +664,8 @@ config DUMMY_CONSOLE
- depends on VGA_HOSE
- default y
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/alpha/kernel/ptrace.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/ptrace.c
---- linux-3.6/arch/alpha/kernel/ptrace.c 2012-05-21 18:06:12.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/ptrace.c 2012-10-04 18:46:59.000000000 +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-3.6/arch/alpha/kernel/systbls.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/systbls.S
---- linux-3.6/arch/alpha/kernel/systbls.S 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/systbls.S 2012-10-04 18:46:59.000000000 +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-3.6/arch/alpha/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/traps.c
---- linux-3.6/arch/alpha/kernel/traps.c 2012-05-21 18:06:12.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/alpha/kernel/traps.c 2012-10-04 18:46:59.000000000 +0200
-@@ -184,7 +184,8 @@ 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-3.6/arch/arm/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/Kconfig
---- linux-3.6/arch/arm/Kconfig 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/Kconfig 2012-10-04 18:46:59.000000000 +0200
-@@ -2331,6 +2331,8 @@ source "fs/Kconfig"
-
- source "arch/arm/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/arm/kernel/calls.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/calls.S
---- linux-3.6/arch/arm/kernel/calls.S 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/calls.S 2012-10-04 18:46:59.000000000 +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-3.6/arch/arm/kernel/process.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/process.c
---- linux-3.6/arch/arm/kernel/process.c 2012-10-04 15:26:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/process.c 2012-10-04 18:46:59.000000000 +0200
-@@ -337,7 +337,8 @@ 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);
- dump_stack();
- }
-diff -NurpP --minimal linux-3.6/arch/arm/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/traps.c
---- linux-3.6/arch/arm/kernel/traps.c 2012-10-04 15:26:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/arm/kernel/traps.c 2012-10-04 19:03:56.000000000 +0200
-@@ -249,8 +249,8 @@ 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), end_of_stack(tsk));
-+ printk(KERN_EMERG "Process %.*s (pid: %d:#%u, stack limit = 0x%p)\n",
-+ TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), tsk->xid, end_of_stack(tsk));
-
- if (!user_mode(regs) || in_interrupt()) {
- dump_mem(KERN_EMERG, "Stack: ", regs->ARM_sp,
-diff -NurpP --minimal linux-3.6/arch/cris/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/cris/Kconfig
---- linux-3.6/arch/cris/Kconfig 2012-10-04 15:26:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/cris/Kconfig 2012-10-04 18:46:59.000000000 +0200
-@@ -673,6 +673,8 @@ source "drivers/staging/Kconfig"
-
- source "arch/cris/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/frv/kernel/kernel_thread.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/frv/kernel/kernel_thread.S
---- linux-3.6/arch/frv/kernel/kernel_thread.S 2012-10-04 15:26:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/frv/kernel/kernel_thread.S 2012-10-04 18:46:59.000000000 +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-3.6/arch/h8300/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/h8300/Kconfig
---- linux-3.6/arch/h8300/Kconfig 2012-10-04 15:26:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/h8300/Kconfig 2012-10-04 18:46:59.000000000 +0200
-@@ -215,6 +215,8 @@ source "fs/Kconfig"
-
- source "arch/h8300/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/ia64/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/Kconfig
---- linux-3.6/arch/ia64/Kconfig 2012-10-04 15:26:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/Kconfig 2012-10-04 18:46:59.000000000 +0200
-@@ -652,6 +652,8 @@ source "fs/Kconfig"
-
- source "arch/ia64/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/ia64/kernel/entry.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/entry.S
---- linux-3.6/arch/ia64/kernel/entry.S 2012-03-19 19:46:40.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/entry.S 2012-10-04 18:46:59.000000000 +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-3.6/arch/ia64/kernel/process.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/process.c
---- linux-3.6/arch/ia64/kernel/process.c 2012-07-22 23:38:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/process.c 2012-10-04 18:46:59.000000000 +0200
-@@ -110,8 +110,8 @@ 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-3.6/arch/ia64/kernel/ptrace.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/ptrace.c
---- linux-3.6/arch/ia64/kernel/ptrace.c 2012-05-21 18:06:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/ptrace.c 2012-10-04 18:46:59.000000000 +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-3.6/arch/ia64/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/traps.c
---- linux-3.6/arch/ia64/kernel/traps.c 2012-05-21 18:06:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/ia64/kernel/traps.c 2012-10-04 18:47:00.000000000 +0200
-@@ -60,8 +60,9 @@ 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);
-@@ -324,8 +325,9 @@ 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-3.6/arch/m32r/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/m32r/kernel/traps.c
---- linux-3.6/arch/m32r/kernel/traps.c 2012-05-21 18:06:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/m32r/kernel/traps.c 2012-10-04 18:47:00.000000000 +0200
-@@ -195,8 +195,9 @@ 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-3.6/arch/m68k/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/m68k/Kconfig
---- linux-3.6/arch/m68k/Kconfig 2012-10-04 15:26:51.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/m68k/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -129,6 +129,8 @@ source "fs/Kconfig"
-
- source "arch/m68k/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/mips/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/Kconfig
---- linux-3.6/arch/mips/Kconfig 2012-10-04 15:26:52.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -2554,6 +2554,8 @@ source "fs/Kconfig"
-
- source "arch/mips/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/mips/kernel/ptrace.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/ptrace.c
---- linux-3.6/arch/mips/kernel/ptrace.c 2012-07-22 23:38:52.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/ptrace.c 2012-10-04 18:47:00.000000000 +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>
-@@ -262,6 +263,9 @@ 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-3.6/arch/mips/kernel/scall32-o32.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall32-o32.S
---- linux-3.6/arch/mips/kernel/scall32-o32.S 2012-01-09 16:14:05.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall32-o32.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/mips/kernel/scall64-64.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-64.S
---- linux-3.6/arch/mips/kernel/scall64-64.S 2012-01-09 16:14:05.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-64.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/mips/kernel/scall64-n32.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-n32.S
---- linux-3.6/arch/mips/kernel/scall64-n32.S 2012-01-09 16:14:05.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-n32.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/mips/kernel/scall64-o32.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-o32.S
---- linux-3.6/arch/mips/kernel/scall64-o32.S 2012-01-09 16:14:05.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/scall64-o32.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/mips/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/traps.c
---- linux-3.6/arch/mips/kernel/traps.c 2012-10-04 15:26:53.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/mips/kernel/traps.c 2012-10-04 18:47:00.000000000 +0200
-@@ -347,9 +347,10 @@ 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-3.6/arch/parisc/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/Kconfig
---- linux-3.6/arch/parisc/Kconfig 2012-07-22 23:38:52.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -281,6 +281,8 @@ source "fs/Kconfig"
-
- source "arch/parisc/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/parisc/kernel/syscall_table.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/kernel/syscall_table.S
---- linux-3.6/arch/parisc/kernel/syscall_table.S 2011-10-24 18:45:00.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/kernel/syscall_table.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/parisc/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/kernel/traps.c
---- linux-3.6/arch/parisc/kernel/traps.c 2012-05-21 18:06:28.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/kernel/traps.c 2012-10-04 18:47:00.000000000 +0200
-@@ -235,8 +235,9 @@ 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);
-@@ -269,8 +270,8 @@ 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-3.6/arch/parisc/mm/fault.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/mm/fault.c
---- linux-3.6/arch/parisc/mm/fault.c 2010-08-02 16:52:06.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/parisc/mm/fault.c 2012-10-04 18:47:00.000000000 +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-3.6/arch/powerpc/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/Kconfig
---- linux-3.6/arch/powerpc/Kconfig 2012-10-04 15:26:53.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -996,6 +996,8 @@ source "lib/Kconfig"
-
- source "arch/powerpc/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- config KEYS_COMPAT
-diff -NurpP --minimal linux-3.6/arch/powerpc/include/asm/unistd.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/include/asm/unistd.h
---- linux-3.6/arch/powerpc/include/asm/unistd.h 2012-10-04 15:26:53.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/include/asm/unistd.h 2012-10-04 18:47:00.000000000 +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-3.6/arch/powerpc/kernel/process.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/kernel/process.c
---- linux-3.6/arch/powerpc/kernel/process.c 2012-10-04 15:26:54.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/kernel/process.c 2012-10-04 18:47:00.000000000 +0200
-@@ -661,8 +661,9 @@ 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-3.6/arch/powerpc/kernel/traps.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/kernel/traps.c
---- linux-3.6/arch/powerpc/kernel/traps.c 2012-10-04 15:26:54.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/powerpc/kernel/traps.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1119,8 +1119,9 @@ 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-3.6/arch/s390/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/Kconfig
---- linux-3.6/arch/s390/Kconfig 2012-10-04 15:26:54.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -634,6 +634,8 @@ source "fs/Kconfig"
-
- source "arch/s390/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/s390/include/asm/tlb.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/include/asm/tlb.h
---- linux-3.6/arch/s390/include/asm/tlb.h 2012-07-22 23:38:59.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/include/asm/tlb.h 2012-10-04 18:47:00.000000000 +0200
-@@ -24,6 +24,7 @@
- #include <linux/mm.h>
- #include <linux/pagemap.h>
- #include <linux/swap.h>
-+
- #include <asm/processor.h>
- #include <asm/pgalloc.h>
- #include <asm/tlbflush.h>
-diff -NurpP --minimal linux-3.6/arch/s390/include/asm/unistd.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/include/asm/unistd.h
---- linux-3.6/arch/s390/include/asm/unistd.h 2012-10-04 15:26:55.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/include/asm/unistd.h 2012-10-04 18:47:00.000000000 +0200
-@@ -200,7 +200,7 @@
- #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-3.6/arch/s390/kernel/ptrace.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/kernel/ptrace.c
---- linux-3.6/arch/s390/kernel/ptrace.c 2012-10-04 15:26:55.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/kernel/ptrace.c 2012-10-04 18:47:00.000000000 +0200
-@@ -21,6 +21,7 @@
- #include <linux/tracehook.h>
- #include <linux/seccomp.h>
- #include <linux/compat.h>
-+#include <linux/vs_base.h>
- #include <trace/syscall.h>
- #include <asm/segment.h>
- #include <asm/page.h>
-diff -NurpP --minimal linux-3.6/arch/s390/kernel/syscalls.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/kernel/syscalls.S
---- linux-3.6/arch/s390/kernel/syscalls.S 2012-01-09 16:14:06.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/s390/kernel/syscalls.S 2012-10-04 18:47:00.000000000 +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-3.6/arch/sh/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sh/Kconfig
---- linux-3.6/arch/sh/Kconfig 2012-10-04 15:26:55.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sh/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -940,6 +940,8 @@ source "fs/Kconfig"
-
- source "arch/sh/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/sh/kernel/irq.c linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sh/kernel/irq.c
---- linux-3.6/arch/sh/kernel/irq.c 2012-10-04 15:26:56.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sh/kernel/irq.c 2012-10-04 18:47:00.000000000 +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-3.6/arch/sparc/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/Kconfig
---- linux-3.6/arch/sparc/Kconfig 2012-10-04 15:26:58.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -593,6 +593,8 @@ source "fs/Kconfig"
-
- source "arch/sparc/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/sparc/include/asm/unistd.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/include/asm/unistd.h
---- linux-3.6/arch/sparc/include/asm/unistd.h 2012-10-04 15:26:59.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/include/asm/unistd.h 2012-10-04 18:47:00.000000000 +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-3.6/arch/sparc/kernel/systbls_32.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/kernel/systbls_32.S
---- linux-3.6/arch/sparc/kernel/systbls_32.S 2012-01-09 16:14:09.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/kernel/systbls_32.S 2012-10-04 18:47:00.000000000 +0200
-@@ -70,7 +70,7 @@ sys_call_table:
- /*250*/ .long sys_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_ni_syscall
- /*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-3.6/arch/sparc/kernel/systbls_64.S linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/kernel/systbls_64.S
---- linux-3.6/arch/sparc/kernel/systbls_64.S 2012-07-22 23:39:00.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/sparc/kernel/systbls_64.S 2012-10-04 18:47:00.000000000 +0200
-@@ -71,7 +71,7 @@ sys_call_table32:
- /*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys_nis_syscall
- .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, compat_sys_keyctl, compat_sys_openat
-@@ -148,7 +148,7 @@ sys_call_table:
- /*250*/ .word sys_64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall
- .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-3.6/arch/um/Kconfig.rest linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/Kconfig.rest
---- linux-3.6/arch/um/Kconfig.rest 2012-01-09 16:14:09.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/Kconfig.rest 2012-10-04 18:47:00.000000000 +0200
-@@ -12,6 +12,8 @@ source "arch/um/Kconfig.net"
-
- source "fs/Kconfig"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/um/include/shared/kern_constants.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/include/shared/kern_constants.h
---- linux-3.6/arch/um/include/shared/kern_constants.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/include/shared/kern_constants.h 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1 @@
-+#include "../../../../include/generated/asm-offsets.h"
-diff -NurpP --minimal linux-3.6/arch/um/include/shared/user_constants.h linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/include/shared/user_constants.h
---- linux-3.6/arch/um/include/shared/user_constants.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/um/include/shared/user_constants.h 2012-10-04 18:47:00.000000000 +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-3.6/arch/x86/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/Kconfig
---- linux-3.6/arch/x86/Kconfig 2012-10-04 15:27:00.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -2228,6 +2228,8 @@ source "fs/Kconfig"
-
- source "arch/x86/Kconfig.debug"
-
-+source "kernel/vserver/Kconfig"
-+
- source "security/Kconfig"
-
- source "crypto/Kconfig"
-diff -NurpP --minimal linux-3.6/arch/x86/syscalls/syscall_32.tbl linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/syscalls/syscall_32.tbl
---- linux-3.6/arch/x86/syscalls/syscall_32.tbl 2012-07-22 23:39:02.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/syscalls/syscall_32.tbl 2012-10-04 18:47:00.000000000 +0200
-@@ -279,7 +279,7 @@
- 270 i386 tgkill sys_tgkill
- 271 i386 utimes sys_utimes compat_sys_utimes
- 272 i386 fadvise64_64 sys_fadvise64_64 sys32_fadvise64_64
--273 i386 vserver
-+273 i386 vserver sys_vserver sys32_vserver
- 274 i386 mbind sys_mbind
- 275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
- 276 i386 set_mempolicy sys_set_mempolicy
-diff -NurpP --minimal linux-3.6/arch/x86/syscalls/syscall_64.tbl linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/syscalls/syscall_64.tbl
---- linux-3.6/arch/x86/syscalls/syscall_64.tbl 2012-10-04 15:27:01.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/arch/x86/syscalls/syscall_64.tbl 2012-10-04 18:47:00.000000000 +0200
-@@ -242,7 +242,7 @@
- 233 common epoll_ctl sys_epoll_ctl
- 234 common tgkill sys_tgkill
- 235 common utimes sys_utimes
--236 64 vserver
-+236 64 vserver sys_vserver
- 237 common mbind sys_mbind
- 238 common set_mempolicy sys_set_mempolicy
- 239 common get_mempolicy sys_get_mempolicy
-diff -NurpP --minimal linux-3.6/drivers/block/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/Kconfig
---- linux-3.6/drivers/block/Kconfig 2012-05-21 18:06:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -290,6 +290,13 @@ 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-3.6/drivers/block/Makefile linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/Makefile
---- linux-3.6/drivers/block/Makefile 2012-03-19 19:46:52.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/Makefile 2012-10-04 18:47:00.000000000 +0200
-@@ -35,6 +35,7 @@ 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-3.6/drivers/block/loop.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/loop.c
---- linux-3.6/drivers/block/loop.c 2012-07-22 23:39:02.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/loop.c 2012-10-04 18:47:00.000000000 +0200
-@@ -76,6 +76,7 @@
- #include <linux/sysfs.h>
- #include <linux/miscdevice.h>
- #include <linux/falloc.h>
-+#include <linux/vs_context.h>
-
- #include <asm/uaccess.h>
-
-@@ -869,6 +870,7 @@ 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;
-@@ -1001,6 +1003,7 @@ static int loop_clr_fd(struct loop_devic
- lo->lo_sizelimit = 0;
- lo->lo_encrypt_key_size = 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);
-@@ -1042,7 +1045,7 @@ 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;
-@@ -1132,7 +1135,8 @@ 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);
-@@ -1492,6 +1496,11 @@ static int lo_open(struct block_device *
- goto out;
- }
-
-+ if (!vx_check(lo->lo_xid, VS_IDENT|VS_HOSTID|VS_ADMIN_P)) {
-+ err = -EACCES;
-+ goto out;
-+ }
-+
- mutex_lock(&lo->lo_ctl_mutex);
- lo->lo_refcnt++;
- mutex_unlock(&lo->lo_ctl_mutex);
-diff -NurpP --minimal linux-3.6/drivers/block/vroot.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/vroot.c
---- linux-3.6/drivers/block/vroot.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/block/vroot.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,291 @@
-+/*
-+ * 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 void vroot_make_request(struct request_queue *q, struct bio *bio)
-+{
-+ printk("vroot_make_request %p, %p\n", q, bio);
-+ bio_io_error(bio);
-+}
-+
-+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-3.6/drivers/infiniband/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/infiniband/Kconfig
---- linux-3.6/drivers/infiniband/Kconfig 2012-07-22 23:39:06.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/infiniband/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -39,7 +39,7 @@ config INFINIBAND_USER_MEM
- config INFINIBAND_ADDR_TRANS
- bool
- depends on INET
-- depends on !(INFINIBAND = y && IPV6 = m)
-+ depends on !(INFINIBAND = y && IPV6 = y)
- default y
-
- source "drivers/infiniband/hw/mthca/Kconfig"
-diff -NurpP --minimal linux-3.6/drivers/infiniband/core/addr.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/infiniband/core/addr.c
---- linux-3.6/drivers/infiniband/core/addr.c 2012-10-04 15:27:10.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/infiniband/core/addr.c 2012-10-04 18:47:00.000000000 +0200
-@@ -263,7 +263,7 @@ 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-3.6/drivers/md/dm-ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm-ioctl.c
---- linux-3.6/drivers/md/dm-ioctl.c 2012-10-04 15:27:11.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm-ioctl.c 2012-10-04 18:47:00.000000000 +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;
- }
-@@ -131,13 +134,15 @@ static struct hash_cell *__get_uuid_cell
- static struct hash_cell *__get_dev_cell(uint64_t dev)
- {
- struct mapped_device *md;
-- struct hash_cell *hc;
-+ struct hash_cell *hc = NULL;
-
- md = dm_get_md(huge_decode_dev(dev));
- if (!md)
- return NULL;
-
-- hc = dm_get_mdptr(md);
-+ if (vx_check(dm_get_xid(md), VS_WATCH_P | VS_IDENT))
-+ hc = dm_get_mdptr(md);
-+
- if (!hc) {
- dm_put(md);
- return NULL;
-@@ -445,6 +450,9 @@ 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;
-@@ -492,6 +500,8 @@ 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;
-@@ -515,6 +525,8 @@ 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);
-@@ -1619,8 +1631,8 @@ 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-3.6/drivers/md/dm.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm.c
---- linux-3.6/drivers/md/dm.c 2012-10-04 15:27:11.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm.c 2012-10-04 18:47:00.000000000 +0200
-@@ -19,6 +19,7 @@
- #include <linux/idr.h>
- #include <linux/hdreg.h>
- #include <linux/delay.h>
-+#include <linux/vs_base.h>
-
- #include <trace/events/block.h>
-
-@@ -131,6 +132,7 @@ struct mapped_device {
- rwlock_t map_lock;
- atomic_t holders;
- atomic_t open_count;
-+ xid_t xid;
-
- unsigned long flags;
-
-@@ -343,6 +345,7 @@ 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);
-
-@@ -351,18 +354,19 @@ 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)
-@@ -583,6 +587,14 @@ 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
-@@ -1892,6 +1904,7 @@ 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-3.6/drivers/md/dm.h linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm.h
---- linux-3.6/drivers/md/dm.h 2012-10-04 15:27:11.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/md/dm.h 2012-10-04 18:47:00.000000000 +0200
-@@ -46,6 +46,8 @@ 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-3.6/drivers/net/tun.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/net/tun.c
---- linux-3.6/drivers/net/tun.c 2012-10-04 15:27:20.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/net/tun.c 2012-10-04 18:47:00.000000000 +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>
-@@ -122,6 +123,7 @@ struct tun_struct {
- unsigned int flags;
- uid_t owner;
- gid_t group;
-+ nid_t nid;
-
- struct net_device *dev;
- netdev_features_t set_features;
-@@ -1033,6 +1035,7 @@ 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;
-@@ -1191,7 +1194,7 @@ 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)
-@@ -1205,7 +1208,7 @@ 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)
-@@ -1276,6 +1279,9 @@ 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;
-@@ -1459,6 +1465,16 @@ 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-3.6/drivers/tty/sysrq.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/tty/sysrq.c
---- linux-3.6/drivers/tty/sysrq.c 2012-05-21 18:07:16.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/tty/sysrq.c 2012-10-04 18:47:00.000000000 +0200
-@@ -41,6 +41,7 @@
- #include <linux/slab.h>
- #include <linux/input.h>
- #include <linux/uaccess.h>
-+#include <linux/vserver/debug.h>
-
- #include <asm/ptrace.h>
- #include <asm/irq_regs.h>
-@@ -398,6 +399,21 @@ 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);
-
-@@ -452,7 +468,11 @@ 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 */
-@@ -467,6 +487,8 @@ 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-3.6/drivers/tty/tty_io.c linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/tty/tty_io.c
---- linux-3.6/drivers/tty/tty_io.c 2012-07-22 23:39:32.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/drivers/tty/tty_io.c 2012-10-04 18:47:00.000000000 +0200
-@@ -104,6 +104,7 @@
-
- #include <linux/kmod.h>
- #include <linux/nsproxy.h>
-+#include <linux/vs_pid.h>
-
- #undef TTY_DEBUG_HANGUP
-
-@@ -2123,7 +2124,8 @@ 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;
-@@ -2411,6 +2413,7 @@ 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-3.6/fs/attr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/attr.c
---- linux-3.6/fs/attr.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/attr.c 2012-10-04 18:47:00.000000000 +0200
-@@ -14,6 +14,9 @@
- #include <linux/fcntl.h>
- #include <linux/security.h>
- #include <linux/evm.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
-@@ -74,6 +77,10 @@ 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);
-@@ -144,6 +151,8 @@ 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);
-@@ -173,7 +182,8 @@ int notify_change(struct dentry * dentry
-
- WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex));
-
-- 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-3.6/fs/block_dev.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/block_dev.c
---- linux-3.6/fs/block_dev.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/block_dev.c 2012-10-04 18:47:00.000000000 +0200
-@@ -27,6 +27,7 @@
- #include <linux/namei.h>
- #include <linux/log2.h>
- #include <linux/cleancache.h>
-+#include <linux/vs_device.h>
- #include <asm/uaccess.h>
- #include "internal.h"
-
-@@ -581,6 +582,7 @@ 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);
-@@ -627,6 +629,11 @@ 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;
-@@ -637,7 +644,7 @@ 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-3.6/fs/btrfs/ctree.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/ctree.h
---- linux-3.6/fs/btrfs/ctree.h 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/ctree.h 2012-10-04 18:47:00.000000000 +0200
-@@ -674,11 +674,14 @@ 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;
-@@ -1727,6 +1730,8 @@ struct btrfs_ioctl_defrag_range_args {
- #define BTRFS_MOUNT_CHECK_INTEGRITY_INCLUDING_EXTENT_DATA (1 << 21)
- #define BTRFS_MOUNT_PANIC_ON_FATAL_ERROR (1 << 22)
-
-+#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 & \
-@@ -1988,6 +1993,7 @@ 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);
-@@ -2041,6 +2047,10 @@ 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);
-
-@@ -3305,6 +3315,7 @@ 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-3.6/fs/btrfs/disk-io.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/disk-io.c
---- linux-3.6/fs/btrfs/disk-io.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/disk-io.c 2012-10-04 18:47:00.000000000 +0200
-@@ -2187,6 +2187,9 @@ int open_ctree(struct super_block *sb,
- 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-3.6/fs/btrfs/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/inode.c
---- linux-3.6/fs/btrfs/inode.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -39,6 +39,7 @@
- #include <linux/slab.h>
- #include <linux/ratelimit.h>
- #include <linux/mount.h>
-+#include <linux/vs_tag.h>
- #include "compat.h"
- #include "ctree.h"
- #include "disk-io.h"
-@@ -2545,6 +2546,8 @@ 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;
-
-@@ -2572,8 +2575,13 @@ static void btrfs_read_locked_inode(stru
- struct btrfs_inode_item);
- inode->i_mode = btrfs_inode_mode(leaf, inode_item);
- set_nlink(inode, 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);
-@@ -2651,8 +2659,14 @@ static void fill_inode_item(struct btrfs
- struct btrfs_inode_item *item,
- struct inode *inode)
- {
-- btrfs_set_inode_uid(leaf, item, inode->i_uid);
-- btrfs_set_inode_gid(leaf, item, 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);
-+
-+ 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);
-@@ -7636,11 +7650,13 @@ static const struct inode_operations btr
- .listxattr = btrfs_listxattr,
- .removexattr = btrfs_removexattr,
- .permission = btrfs_permission,
-+ .sync_flags = btrfs_sync_flags,
- .get_acl = btrfs_get_acl,
- };
- static const struct inode_operations btrfs_dir_ro_inode_operations = {
- .lookup = btrfs_lookup,
- .permission = btrfs_permission,
-+ .sync_flags = btrfs_sync_flags,
- .get_acl = btrfs_get_acl,
- };
-
-diff -NurpP --minimal linux-3.6/fs/btrfs/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/ioctl.c
---- linux-3.6/fs/btrfs/ioctl.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/ioctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -74,10 +74,13 @@ 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)
-@@ -94,28 +97,78 @@ 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;
- }
-
- /*
-@@ -131,6 +184,7 @@ void btrfs_inherit_iflags(struct inode *
- return;
-
- flags = BTRFS_I(dir)->flags;
-+ flags &= ~BTRFS_INODE_BARRIER;
-
- if (flags & BTRFS_INODE_NOCOMPRESS) {
- BTRFS_I(inode)->flags &= ~BTRFS_INODE_COMPRESS;
-@@ -146,6 +200,30 @@ 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);
-@@ -206,21 +284,27 @@ 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;
- }
- }
-
-- 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-3.6/fs/btrfs/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/super.c
---- linux-3.6/fs/btrfs/super.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/btrfs/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -306,7 +306,7 @@ enum {
- Opt_no_space_cache, Opt_recovery, Opt_skip_balance,
- Opt_check_integrity, Opt_check_integrity_including_extent_data,
- Opt_check_integrity_print_mask, Opt_fatal_errors,
-- Opt_err,
-+ Opt_tag, Opt_notag, Opt_tagid, Opt_err,
- };
-
- static match_table_t tokens = {
-@@ -346,6 +346,9 @@ static match_table_t tokens = {
- {Opt_check_integrity_including_extent_data, "check_int_data"},
- {Opt_check_integrity_print_mask, "check_int_print_mask=%d"},
- {Opt_fatal_errors, "fatal_errors=%s"},
-+ {Opt_tag, "tag"},
-+ {Opt_notag, "notag"},
-+ {Opt_tagid, "tagid=%u"},
- {Opt_err, NULL},
- };
-
-@@ -596,6 +599,22 @@ int btrfs_parse_options(struct btrfs_roo
- goto out;
- }
- 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);
-@@ -1196,6 +1215,12 @@ static int btrfs_remount(struct super_bl
- btrfs_resize_thread_pool(fs_info,
- fs_info->thread_pool_size, old_thread_pool_size);
-
-+ 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-3.6/fs/char_dev.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/char_dev.c
---- linux-3.6/fs/char_dev.c 2012-03-19 19:47:25.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/char_dev.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/dcache.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/dcache.c
---- linux-3.6/fs/dcache.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/dcache.c 2012-10-04 18:47:00.000000000 +0200
-@@ -37,6 +37,7 @@
- #include <linux/rculist_bl.h>
- #include <linux/prefetch.h>
- #include <linux/ratelimit.h>
-+#include <linux/vs_limit.h>
- #include "internal.h"
- #include "mount.h"
-
-@@ -617,6 +618,8 @@ int d_invalidate(struct dentry * dentry)
- spin_lock(&dentry->d_lock);
- }
-
-+ vx_dentry_dec(dentry);
-+
- /*
- * Somebody else still using it?
- *
-@@ -646,6 +649,7 @@ 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)
-@@ -1276,6 +1280,9 @@ struct dentry *__d_alloc(struct super_bl
- struct dentry *dentry;
- char *dname;
-
-+ if (!vx_dentry_avail(1))
-+ return NULL;
-+
- dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL);
- if (!dentry)
- return NULL;
-@@ -1308,6 +1315,7 @@ struct dentry *__d_alloc(struct super_bl
-
- 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;
-@@ -2012,6 +2020,7 @@ 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-3.6/fs/devpts/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/devpts/inode.c
---- linux-3.6/fs/devpts/inode.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/devpts/inode.c 2012-10-04 18:47:00.000000000 +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 +37,21 @@
- #define DEVPTS_DEFAULT_PTMX_MODE 0000
- #define PTMX_MINOR 2
-
-+static int devpts_permission(struct inode *inode, int mask)
-+{
-+ 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);
-+ return ret;
-+}
-+
-+static struct inode_operations devpts_file_inode_operations = {
-+ .permission = devpts_permission,
-+};
-+
-+
- /*
- * sysctl support for setting limits on the number of Unix98 ptys allocated.
- * Otherwise one can eat up all kernel memory by opening /dev/ptmx repeatedly.
-@@ -336,6 +352,34 @@ 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,
-@@ -379,8 +423,10 @@ devpts_fill_super(struct super_block *s,
- 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;
- set_nlink(inode, 2);
-+ /* devpts is xid tagged */
-+ inode->i_tag = (tag_t)vx_current_xid();
-
- s->s_root = d_make_root(inode);
- if (s->s_root)
-@@ -572,6 +618,9 @@ 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-3.6/fs/ext2/balloc.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/balloc.c
---- linux-3.6/fs/ext2/balloc.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/balloc.c 2012-10-04 18:47:00.000000000 +0200
-@@ -699,7 +699,6 @@ 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-3.6/fs/ext2/ext2.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ext2.h
---- linux-3.6/fs/ext2/ext2.h 2012-07-22 23:39:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ext2.h 2012-10-04 18:47:00.000000000 +0200
-@@ -244,8 +244,12 @@ 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 */
-
-@@ -329,7 +333,8 @@ 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 */
-@@ -357,6 +362,7 @@ 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
-
- /*
-@@ -384,6 +390,7 @@ 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
-@@ -757,6 +764,7 @@ 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-3.6/fs/ext2/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/file.c
---- linux-3.6/fs/ext2/file.c 2011-10-24 18:45:27.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -104,4 +104,5 @@ const struct inode_operations ext2_file_
- .setattr = ext2_setattr,
- .get_acl = ext2_get_acl,
- .fiemap = ext2_fiemap,
-+ .sync_flags = ext2_sync_flags,
- };
-diff -NurpP --minimal linux-3.6/fs/ext2/ialloc.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ialloc.c
---- linux-3.6/fs/ext2/ialloc.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ialloc.c 2012-10-04 18:47:00.000000000 +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"
-@@ -547,6 +548,7 @@ 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-3.6/fs/ext2/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/inode.c
---- linux-3.6/fs/ext2/inode.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -31,6 +31,7 @@
- #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"
-@@ -1165,7 +1166,7 @@ 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)
-@@ -1321,8 +1347,10 @@ struct inode *ext2_iget (struct super_bl
- i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
- i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
- }
-- i_uid_write(inode, i_uid);
-- i_gid_write(inode, i_gid);
-+ i_uid_write(inode, INOTAG_UID(DX_TAG(inode), i_uid, i_gid));
-+ i_gid_write(inode, INOTAG_GID(DX_TAG(inode), i_uid, i_gid));
-+ inode->i_tag = INOTAG_TAG(DX_TAG(inode), i_uid, i_gid,
-+ le16_to_cpu(raw_inode->i_raw_tag));
- set_nlink(inode, 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);
-@@ -1420,8 +1448,8 @@ 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 = i_uid_read(inode);
-- gid_t gid = i_gid_read(inode);
-+ uid_t uid = TAGINO_UID(DX_TAG(inode), i_uid_read(inode), inode->i_tag);
-+ gid_t gid = TAGINO_GID(DX_TAG(inode), i_gid_read(inode), inode->i_tag);
- struct buffer_head * bh;
- struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh);
- int n;
-@@ -1457,6 +1485,9 @@ 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);
-@@ -1537,7 +1568,8 @@ int ext2_setattr(struct dentry *dentry,
- if (is_quota_modification(inode, iattr))
- dquot_initialize(inode);
- if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) ||
-- (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) {
-+ (iattr->ia_valid & ATTR_GID && !gid_eq(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-3.6/fs/ext2/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ioctl.c
---- linux-3.6/fs/ext2/ioctl.c 2012-03-19 19:47:25.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/ioctl.c 2012-10-04 18:47:00.000000000 +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;
-
-diff -NurpP --minimal linux-3.6/fs/ext2/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/namei.c
---- linux-3.6/fs/ext2/namei.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/namei.c 2012-10-04 18:47:00.000000000 +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"
-@@ -73,6 +74,7 @@ static struct dentry *ext2_lookup(struct
- (unsigned long) ino);
- return ERR_PTR(-EIO);
- }
-+ dx_propagate_tag(nd, inode);
- }
- return d_splice_alias(inode, dentry);
- }
-@@ -397,6 +399,7 @@ const struct inode_operations ext2_dir_i
- .removexattr = generic_removexattr,
- #endif
- .setattr = ext2_setattr,
-+ .sync_flags = ext2_sync_flags,
- .get_acl = ext2_get_acl,
- };
-
-diff -NurpP --minimal linux-3.6/fs/ext2/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/super.c
---- linux-3.6/fs/ext2/super.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext2/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -390,7 +390,8 @@ 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 = {
-@@ -418,6 +419,9 @@ 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"},
-@@ -501,6 +505,20 @@ 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;
-@@ -859,6 +877,8 @@ 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);
-@@ -1265,6 +1285,14 @@ 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-3.6/fs/ext3/ext3.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ext3.h
---- linux-3.6/fs/ext3/ext3.h 2012-07-22 23:39:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ext3.h 2012-10-04 18:47:00.000000000 +0200
-@@ -151,10 +151,14 @@ 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 |\
-@@ -290,7 +294,8 @@ 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 */
-@@ -320,6 +325,7 @@ 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
-
- /*
-@@ -364,6 +370,7 @@ 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
-@@ -1061,6 +1068,7 @@ 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-3.6/fs/ext3/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/file.c
---- linux-3.6/fs/ext3/file.c 2012-05-21 18:07:20.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -76,5 +76,6 @@ const struct inode_operations ext3_file_
- #endif
- .get_acl = ext3_get_acl,
- .fiemap = ext3_fiemap,
-+ .sync_flags = ext3_sync_flags,
- };
-
-diff -NurpP --minimal linux-3.6/fs/ext3/ialloc.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ialloc.c
---- linux-3.6/fs/ext3/ialloc.c 2012-07-22 23:39:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ialloc.c 2012-10-04 18:47:00.000000000 +0200
-@@ -14,6 +14,7 @@
-
- #include <linux/quotaops.h>
- #include <linux/random.h>
-+#include <linux/vs_tag.h>
-
- #include "ext3.h"
- #include "xattr.h"
-@@ -469,6 +470,7 @@ 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-3.6/fs/ext3/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/inode.c
---- linux-3.6/fs/ext3/inode.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -27,6 +27,8 @@
- #include <linux/writeback.h>
- #include <linux/mpage.h>
- #include <linux/namei.h>
-+#include <linux/vs_tag.h>
-+
- #include "ext3.h"
- #include "xattr.h"
- #include "acl.h"
-@@ -2848,36 +2850,60 @@ 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)
-@@ -2915,8 +2941,10 @@ struct inode *ext3_iget(struct super_blo
- i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
- i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
- }
-- i_uid_write(inode, i_uid);
-- i_gid_write(inode, i_gid);
-+ i_uid_write(inode, INOTAG_UID(DX_TAG(inode), i_uid, i_gid));
-+ i_gid_write(inode, INOTAG_GID(DX_TAG(inode), i_uid, i_gid));
-+ inode->i_tag = INOTAG_TAG(DX_TAG(inode), i_uid, i_gid,
-+ le16_to_cpu(raw_inode->i_raw_tag));
- set_nlink(inode, 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);
-@@ -3088,8 +3116,8 @@ again:
-
- ext3_get_inode_flags(ei);
- raw_inode->i_mode = cpu_to_le16(inode->i_mode);
-- i_uid = i_uid_read(inode);
-- i_gid = i_gid_read(inode);
-+ i_uid = TAGINO_UID(DX_TAG(inode), i_uid_read(inode), inode->i_tag);
-+ i_gid = TAGINO_GID(DX_TAG(inode), i_gid_read(inode), inode->i_tag);
- if(!(test_opt(inode->i_sb, NO_UID32))) {
- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(i_uid));
- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(i_gid));
-@@ -3114,6 +3142,9 @@ again:
- 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);
- disksize = cpu_to_le32(ei->i_disksize);
- if (disksize != raw_inode->i_size) {
-@@ -3282,7 +3313,8 @@ int ext3_setattr(struct dentry *dentry,
- if (is_quota_modification(inode, attr))
- dquot_initialize(inode);
- if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||
-- (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {
-+ (ia_valid & ATTR_GID && !gid_eq(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,
-@@ -3304,6 +3336,8 @@ 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-3.6/fs/ext3/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ioctl.c
---- linux-3.6/fs/ext3/ioctl.c 2012-05-21 18:07:20.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/ioctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -12,6 +12,34 @@
- #include <asm/uaccess.h>
- #include "ext3.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;
-@@ -45,6 +73,11 @@ 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 */
-@@ -63,7 +96,9 @@ 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;
- }
-@@ -88,7 +123,7 @@ 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-3.6/fs/ext3/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/namei.c
---- linux-3.6/fs/ext3/namei.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/namei.c 2012-10-04 18:47:00.000000000 +0200
-@@ -25,6 +25,8 @@
- */
-
- #include <linux/quotaops.h>
-+#include <linux/vs_tag.h>
-+
- #include "ext3.h"
- #include "namei.h"
- #include "xattr.h"
-@@ -915,6 +917,7 @@ restart:
- submit_bh(READ | REQ_META | REQ_PRIO,
- bh);
- }
-+ dx_propagate_tag(nd, inode);
- }
- }
- if ((bh = bh_use[ra_ptr++]) == NULL)
-@@ -2526,6 +2529,7 @@ const struct inode_operations ext3_dir_i
- .listxattr = ext3_listxattr,
- .removexattr = generic_removexattr,
- #endif
-+ .sync_flags = ext3_sync_flags,
- .get_acl = ext3_get_acl,
- };
-
-diff -NurpP --minimal linux-3.6/fs/ext3/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/super.c
---- linux-3.6/fs/ext3/super.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext3/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -811,7 +811,8 @@ 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 = {
-@@ -868,6 +869,9 @@ 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},
- };
-
-@@ -1033,6 +1037,20 @@ 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;
-@@ -1731,6 +1749,9 @@ 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);
-
-@@ -2618,6 +2639,14 @@ 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-3.6/fs/ext4/ext4.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ext4.h
---- linux-3.6/fs/ext4/ext4.h 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ext4.h 2012-10-04 18:47:00.000000000 +0200
-@@ -393,8 +393,12 @@ 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 */
-
-@@ -666,7 +670,7 @@ struct ext4_inode {
- __le16 l_i_uid_high; /* these 2 fields */
- __le16 l_i_gid_high; /* were reserved2[0] */
- __le16 l_i_checksum_lo;/* crc32c(uuid+inum+inode) LE */
-- __le16 l_i_reserved;
-+ __le16 l_i_tag; /* Context Tag */
- } linux2;
- struct {
- __le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
-@@ -784,6 +788,7 @@ 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_checksum_lo osd2.linux2.l_i_checksum_lo
-
- #elif defined(__GNU__)
-@@ -964,6 +969,7 @@ 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 */
-@@ -2393,6 +2399,7 @@ 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-3.6/fs/ext4/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/file.c
---- linux-3.6/fs/ext4/file.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -334,5 +334,6 @@ const struct inode_operations ext4_file_
- #endif
- .get_acl = ext4_get_acl,
- .fiemap = ext4_fiemap,
-+ .sync_flags = ext4_sync_flags,
- };
-
-diff -NurpP --minimal linux-3.6/fs/ext4/ialloc.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ialloc.c
---- linux-3.6/fs/ext4/ialloc.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ialloc.c 2012-10-04 18:47:00.000000000 +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"
-@@ -842,6 +843,7 @@ 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-3.6/fs/ext4/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/inode.c
---- linux-3.6/fs/ext4/inode.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -37,6 +37,7 @@
- #include <linux/printk.h>
- #include <linux/slab.h>
- #include <linux/ratelimit.h>
-+#include <linux/vs_tag.h>
-
- #include "ext4_jbd2.h"
- #include "xattr.h"
-@@ -3712,41 +3713,64 @@ 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);
- }
-
-@@ -3838,8 +3862,10 @@ struct inode *ext4_iget(struct super_blo
- i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
- i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
- }
-- i_uid_write(inode, i_uid);
-- i_gid_write(inode, i_gid);
-+ i_uid_write(inode, INOTAG_UID(DX_TAG(inode), i_uid, i_gid));
-+ i_gid_write(inode, INOTAG_GID(DX_TAG(inode), i_uid, i_gid));
-+ inode->i_tag = INOTAG_TAG(DX_TAG(inode), i_uid, i_gid,
-+ le16_to_cpu(raw_inode->i_raw_tag));
- set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
-
- ext4_clear_state_flags(ei); /* Only relevant on 32-bit archs */
-@@ -4062,8 +4088,8 @@ static int ext4_do_update_inode(handle_t
-
- ext4_get_inode_flags(ei);
- raw_inode->i_mode = cpu_to_le16(inode->i_mode);
-- i_uid = i_uid_read(inode);
-- i_gid = i_gid_read(inode);
-+ i_uid = TAGINO_UID(DX_TAG(inode), i_uid_read(inode), inode->i_tag);
-+ i_gid = TAGINO_GID(DX_TAG(inode), i_gid_read(inode), inode->i_tag);
- if (!(test_opt(inode->i_sb, NO_UID32))) {
- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(i_uid));
- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(i_gid));
-@@ -4086,6 +4112,9 @@ static int ext4_do_update_inode(handle_t
- 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);
-@@ -4271,7 +4300,8 @@ int ext4_setattr(struct dentry *dentry,
- if (is_quota_modification(inode, attr))
- dquot_initialize(inode);
- if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||
-- (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {
-+ (ia_valid & ATTR_GID && !gid_eq(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,
-@@ -4293,6 +4323,8 @@ 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-3.6/fs/ext4/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ioctl.c
---- linux-3.6/fs/ext4/ioctl.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/ioctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -14,12 +14,40 @@
- #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"
-
- #define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
-
-+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;
-@@ -53,6 +81,11 @@ 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 */
-@@ -70,7 +103,9 @@ 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-3.6/fs/ext4/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/namei.c
---- linux-3.6/fs/ext4/namei.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/namei.c 2012-10-04 18:47:00.000000000 +0200
-@@ -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"
-
-@@ -1199,6 +1200,7 @@ restart:
- ll_rw_block(READ | REQ_META | REQ_PRIO,
- 1, &bh);
- }
-+ dx_propagate_tag(nd, inode);
- }
- if ((bh = bh_use[ra_ptr++]) == NULL)
- goto next;
-@@ -2984,6 +2986,7 @@ const struct inode_operations ext4_dir_i
- #endif
- .get_acl = ext4_get_acl,
- .fiemap = ext4_fiemap,
-+ .sync_flags = ext4_sync_flags,
- };
-
- const struct inode_operations ext4_special_inode_operations = {
-diff -NurpP --minimal linux-3.6/fs/ext4/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/super.c
---- linux-3.6/fs/ext4/super.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ext4/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1219,6 +1219,7 @@ enum {
- Opt_inode_readahead_blks, Opt_journal_ioprio,
- Opt_dioread_nolock, Opt_dioread_lock,
- Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable,
-+ Opt_tag, Opt_notag, Opt_tagid
- };
-
- static const match_table_t tokens = {
-@@ -1297,6 +1298,9 @@ static const match_table_t tokens = {
- {Opt_removed, "reservation"}, /* mount option from ext2/3 */
- {Opt_removed, "noreservation"}, /* mount option from ext2/3 */
- {Opt_removed, "journal=%u"}, /* mount option from ext2/3 */
-+ {Opt_tag, "tag"},
-+ {Opt_notag, "notag"},
-+ {Opt_tagid, "tagid=%u"},
- {Opt_err, NULL},
- };
-
-@@ -1543,6 +1547,20 @@ static int handle_mount_opt(struct super
- return -1;
- *journal_ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, arg);
- return 1;
-+#ifndef CONFIG_TAGGING_NONE
-+ case Opt_tag:
-+ set_opt(sb, TAGGED);
-+ return 1;
-+ case Opt_notag:
-+ clear_opt(sb, TAGGED);
-+ return 1;
-+#endif
-+#ifdef CONFIG_PROPAGATE
-+ case Opt_tagid:
-+ /* use args[0] */
-+ set_opt(sb, TAGGED);
-+ return 1;
-+#endif
- }
-
- for (m = ext4_mount_opts; m->token != Opt_err; m++) {
-@@ -3417,6 +3435,9 @@ static int ext4_fill_super(struct super_
- }
- }
-
-+ 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);
-
-@@ -4582,6 +4603,14 @@ 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-3.6/fs/fcntl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/fcntl.c
---- linux-3.6/fs/fcntl.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/fcntl.c 2012-10-04 19:05:02.000000000 +0200
-@@ -21,6 +21,7 @@
- #include <linux/rcupdate.h>
- #include <linux/pid_namespace.h>
- #include <linux/user_namespace.h>
-+#include <linux/vs_limit.h>
-
- #include <asm/poll.h>
- #include <asm/siginfo.h>
-@@ -104,6 +105,8 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldf
-
- if (tofree)
- filp_close(tofree, files);
-+ else
-+ vx_openfd_inc(newfd); /* fd was unused */
-
- return newfd;
-
-@@ -477,6 +480,8 @@ SYSCALL_DEFINE3(fcntl, unsigned int, fd,
- filp = fget_raw_light(fd, &fput_needed);
- 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-3.6/fs/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/file.c
---- linux-3.6/fs/file.c 2012-05-21 18:07:20.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/file.c 2012-10-04 18:47:00.000000000 +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;
-@@ -358,6 +359,8 @@ 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
-@@ -464,6 +467,7 @@ repeat:
- else
- __clear_close_on_exec(fd, fdt);
- error = fd;
-+ vx_openfd_inc(fd);
- #if 1
- /* Sanity check */
- if (rcu_dereference_raw(fdt->fd[fd]) != NULL) {
-diff -NurpP --minimal linux-3.6/fs/file_table.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/file_table.c
---- linux-3.6/fs/file_table.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/file_table.c 2012-10-04 19:10:21.000000000 +0200
-@@ -26,6 +26,8 @@
- #include <linux/hardirq.h>
- #include <linux/task_work.h>
- #include <linux/ima.h>
-+#include <linux/vs_limit.h>
-+#include <linux/vs_context.h>
-
- #include <linux/atomic.h>
-
-@@ -136,6 +138,8 @@ 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:
-@@ -257,6 +261,8 @@ static void __fput(struct file *file)
- i_readcount_dec(inode);
- if (file->f_mode & FMODE_WRITE)
- drop_file_write_access(file);
-+ vx_files_dec(file);
-+ file->f_xid = 0;
- file->f_path.dentry = NULL;
- file->f_path.mnt = NULL;
- file_free(file);
-@@ -449,6 +455,8 @@ 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-3.6/fs/fs_struct.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/fs_struct.c
---- linux-3.6/fs/fs_struct.c 2012-10-04 15:27:39.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/fs_struct.c 2012-10-04 19:08:56.000000000 +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"
-
- /*
-@@ -87,6 +88,7 @@ void free_fs_struct(struct fs_struct *fs
- {
- path_put(&fs->root);
- path_put(&fs->pwd);
-+ atomic_dec(&vs_global_fs);
- kmem_cache_free(fs_cachep, fs);
- }
-
-@@ -124,6 +126,7 @@ struct fs_struct *copy_fs_struct(struct
- fs->pwd = old->pwd;
- path_get(&fs->pwd);
- spin_unlock(&old->lock);
-+ atomic_inc(&vs_global_fs);
- }
- return fs;
- }
-diff -NurpP --minimal linux-3.6/fs/gfs2/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/gfs2/file.c
---- linux-3.6/fs/gfs2/file.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/gfs2/file.c 2012-10-04 19:05:34.000000000 +0200
-@@ -143,6 +143,9 @@ static const u32 fsflags_to_gfs2[32] = {
- [12] = GFS2_DIF_EXHASH,
- [14] = GFS2_DIF_INHERIT_JDATA,
- [17] = GFS2_DIF_TOPDIR,
-+ [27] = GFS2_DIF_IXUNLINK,
-+ [26] = GFS2_DIF_BARRIER,
-+ [29] = GFS2_DIF_COW,
- };
-
- static const u32 gfs2_to_fsflags[32] = {
-@@ -153,6 +156,9 @@ static const u32 gfs2_to_fsflags[32] = {
- [gfs2fl_ExHash] = FS_INDEX_FL,
- [gfs2fl_TopLevel] = FS_TOPDIR_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)
-@@ -183,12 +189,18 @@ 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 | S_NOSEC);
-
-- flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_NOSEC);
- if ((ip->i_eattr == 0) && !is_sxid(inode->i_mode))
- inode->i_flags |= S_NOSEC;
- 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)
-@@ -196,6 +208,43 @@ 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 */
-@@ -309,6 +358,37 @@ 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-3.6/fs/gfs2/inode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/gfs2/inode.h
---- linux-3.6/fs/gfs2/inode.h 2012-07-22 23:39:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/gfs2/inode.h 2012-10-04 18:47:00.000000000 +0200
-@@ -117,6 +117,7 @@ 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-3.6/fs/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/inode.c
---- linux-3.6/fs/inode.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -17,6 +17,7 @@
- #include <linux/prefetch.h>
- #include <linux/buffer_head.h> /* for inode_has_buffers */
- #include <linux/ratelimit.h>
-+#include <linux/vs_tag.h>
- #include "internal.h"
-
- /*
-@@ -128,6 +129,9 @@ 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);
-@@ -149,6 +153,7 @@ 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))
-@@ -470,6 +475,8 @@ 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
-@@ -1792,9 +1799,11 @@ 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))
-@@ -1823,6 +1832,7 @@ 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-3.6/fs/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ioctl.c
---- linux-3.6/fs/ioctl.c 2012-05-21 18:07:24.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ioctl.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/ioprio.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ioprio.c
---- linux-3.6/fs/ioprio.c 2012-07-22 23:39:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ioprio.c 2012-10-04 18:47:00.000000000 +0200
-@@ -28,6 +28,7 @@
- #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)
- {
-@@ -105,6 +106,8 @@ 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;
-@@ -198,6 +201,8 @@ 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-3.6/fs/jfs/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/file.c
---- linux-3.6/fs/jfs/file.c 2011-10-24 18:45:27.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -109,7 +109,8 @@ 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;
-@@ -142,6 +143,7 @@ const struct inode_operations jfs_file_i
- #ifdef CONFIG_JFS_POSIX_ACL
- .get_acl = jfs_get_acl,
- #endif
-+ .sync_flags = jfs_sync_flags,
- };
-
- const struct file_operations jfs_file_operations = {
-diff -NurpP --minimal linux-3.6/fs/jfs/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/ioctl.c
---- linux-3.6/fs/jfs/ioctl.c 2012-03-19 19:47:25.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/ioctl.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/jfs/jfs_dinode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_dinode.h
---- linux-3.6/fs/jfs/jfs_dinode.h 2008-12-25 00:26:37.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_dinode.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/jfs/jfs_filsys.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_filsys.h
---- linux-3.6/fs/jfs/jfs_filsys.h 2008-12-25 00:26:37.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_filsys.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/jfs/jfs_imap.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_imap.c
---- linux-3.6/fs/jfs/jfs_imap.c 2012-01-09 16:14:54.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_imap.c 2012-10-04 18:47:00.000000000 +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
- }
- set_nlink(ip, 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-3.6/fs/jfs/jfs_inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_inode.c
---- linux-3.6/fs/jfs/jfs_inode.c 2012-01-09 16:14:54.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_inode.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/jfs/jfs_inode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_inode.h
---- linux-3.6/fs/jfs/jfs_inode.h 2011-10-24 18:45:27.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/jfs_inode.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/jfs/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/namei.c
---- linux-3.6/fs/jfs/namei.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/namei.c 2012-10-04 18:47:00.000000000 +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"
-@@ -1461,6 +1462,7 @@ static struct dentry *jfs_lookup(struct
- jfs_err("jfs_lookup: iget failed on inum %d", (uint)inum);
- }
-
-+ dx_propagate_tag(nd, ip);
- return d_splice_alias(ip, dentry);
- }
-
-@@ -1525,6 +1527,7 @@ const struct inode_operations jfs_dir_in
- #ifdef CONFIG_JFS_POSIX_ACL
- .get_acl = jfs_get_acl,
- #endif
-+ .sync_flags = jfs_sync_flags,
- };
-
- const struct file_operations jfs_dir_operations = {
-diff -NurpP --minimal linux-3.6/fs/jfs/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/super.c
---- linux-3.6/fs/jfs/super.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/jfs/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -197,7 +197,8 @@ 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 = {
-@@ -207,6 +208,10 @@ 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"},
-@@ -341,6 +346,20 @@ 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);
-@@ -372,6 +391,12 @@ 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-3.6/fs/libfs.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/libfs.c
---- linux-3.6/fs/libfs.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/libfs.c 2012-10-04 18:47:00.000000000 +0200
-@@ -135,7 +135,8 @@ 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;
-@@ -166,6 +167,8 @@ 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);
-@@ -192,6 +195,17 @@ 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;
-@@ -983,6 +997,7 @@ 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-3.6/fs/locks.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/locks.c
---- linux-3.6/fs/locks.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/locks.c 2012-10-04 18:47:00.000000000 +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>
-
-@@ -184,11 +186,17 @@ static void locks_init_lock_heads(struct
- /* Allocate an empty lock structure. */
- struct file_lock *locks_alloc_lock(void)
- {
-- struct file_lock *fl = kmem_cache_zalloc(filelock_cache, GFP_KERNEL);
-+ struct file_lock *fl;
-
-- if (fl)
-- locks_init_lock_heads(fl);
-+ if (!vx_locks_avail(1))
-+ return NULL;
-
-+ fl = kmem_cache_zalloc(filelock_cache, GFP_KERNEL);
-+
-+ if (fl) {
-+ locks_init_lock_heads(fl);
-+ fl->fl_xid = -1;
-+ }
- return fl;
- }
- EXPORT_SYMBOL_GPL(locks_alloc_lock);
-@@ -212,6 +220,7 @@ 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);
- }
-@@ -221,6 +230,7 @@ void locks_init_lock(struct file_lock *f
- {
- memset(fl, 0, sizeof(struct file_lock));
- locks_init_lock_heads(fl);
-+ fl->fl_xid = -1;
- }
-
- EXPORT_SYMBOL(locks_init_lock);
-@@ -261,6 +271,7 @@ 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);
- }
-@@ -299,6 +310,11 @@ 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;
-@@ -438,6 +454,7 @@ 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;
-@@ -457,6 +474,11 @@ 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);
-@@ -753,6 +775,7 @@ 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;
-@@ -773,6 +796,7 @@ 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;
-
-@@ -783,7 +807,8 @@ 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;
-@@ -793,6 +818,8 @@ 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.
-@@ -803,7 +830,11 @@ 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();
-@@ -1002,7 +1033,8 @@ 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);
-
-@@ -1092,7 +1124,7 @@ 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);
-@@ -1397,6 +1429,7 @@ int generic_add_lease(struct file *filp,
- goto out;
-
- locks_insert_lock(before, lease);
-+ vx_locks_inc(lease);
- return 0;
-
- out:
-@@ -1838,6 +1871,11 @@ 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.
- */
-@@ -1956,6 +1994,11 @@ 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.
- */
-@@ -2221,8 +2264,11 @@ 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-3.6/fs/mount.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/mount.h
---- linux-3.6/fs/mount.h 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/mount.h 2012-10-04 18:47:00.000000000 +0200
-@@ -46,6 +46,7 @@ struct mount {
- int mnt_expiry_mark; /* true if marked for expiry */
- int mnt_pinned;
- int mnt_ghosts;
-+ tag_t mnt_tag; /* tagging used for vfsmount */
- };
-
- #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
-diff -NurpP --minimal linux-3.6/fs/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/namei.c
---- linux-3.6/fs/namei.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/namei.c 2012-10-04 19:08:15.000000000 +0200
-@@ -34,6 +34,14 @@
- #include <linux/device_cgroup.h>
- #include <linux/fs_struct.h>
- #include <linux/posix_acl.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"
-@@ -212,6 +220,89 @@ static int check_acl(struct inode *inode
- return -EAGAIN;
- }
-
-+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 the basic permission checking
- */
-@@ -334,10 +425,14 @@ int __inode_permission(struct inode *ino
- /*
- * 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;
-+
- retval = do_inode_permission(inode, mask);
- if (retval)
- return retval;
-@@ -1189,7 +1284,8 @@ 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()... */
-@@ -1338,6 +1434,9 @@ static int lookup_fast(struct nameidata
- goto unlazy;
- }
- }
-+
-+ /* FIXME: check dx permission */
-+
- path->mnt = mnt;
- path->dentry = dentry;
- if (unlikely(!__follow_mount_rcu(nd, path, inode)))
-@@ -1373,6 +1472,8 @@ unlazy:
- }
- }
-
-+ /* FIXME: check dx permission */
-+
- path->mnt = mnt;
- path->dentry = dentry;
- err = follow_managed(path, nd->flags);
-@@ -2192,7 +2293,7 @@ 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))
-@@ -2271,19 +2372,25 @@ int vfs_create(struct inode *dir, struct
- bool want_excl)
- {
- int error = may_create(dir, dentry);
-- if (error)
-- return error;
-+ if (error) {
-+ vxdprintk(VXD_CBIT(misc, 3), "may_create failed with %d", error);
-+ return error;
-+ }
-
- if (!dir->i_op->create)
- return -EACCES; /* shouldn't it be ENOSYS? */
- mode &= S_IALLUGO;
- mode |= S_IFREG;
- error = security_inode_create(dir, dentry, mode);
-- if (error)
-- return error;
-+ if (error) {
-+ vxdprintk(VXD_CBIT(misc, 3), "security_inode_create failed with %d", error);
-+ return error;
-+ }
- error = dir->i_op->create(dir, dentry, mode, want_excl);
- if (!error)
- fsnotify_create(dir, dentry);
-+ else
-+ vxdprintk(VXD_CBIT(misc, 3), "i_op->create failed with %d", error);
- return error;
- }
-
-@@ -2318,6 +2425,15 @@ 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;
-@@ -2820,6 +2936,16 @@ finish_open:
- }
- finish_open_created:
- 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 out;
- file->f_path.mnt = nd->path.mnt;
-@@ -2884,6 +3010,7 @@ static struct file *path_openat(int dfd,
- int opened = 0;
- int error;
-
-+restart:
- file = get_empty_filp();
- if (!file)
- return ERR_PTR(-ENFILE);
-@@ -2920,6 +3047,17 @@ static struct file *path_openat(int dfd,
- error = do_last(nd, &path, file, op, &opened, 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);
-@@ -3023,6 +3161,11 @@ struct dentry *kern_path_create(int dfd,
- goto fail;
- }
- *path = nd.path;
-+ vxdprintk(VXD_CBIT(misc, 3), "kern_path_create path.dentry = %p (%.*s), dentry = %p (%.*s), d_inode = %p",
-+ path->dentry, path->dentry->d_name.len,
-+ path->dentry->d_name.name, dentry,
-+ dentry->d_name.len, dentry->d_name.name,
-+ path->dentry->d_inode);
- return dentry;
- fail:
- dput(dentry);
-@@ -3489,7 +3632,7 @@ 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;
-@@ -3874,6 +4017,253 @@ 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);
-+}
-+
-+extern unsigned int mnt_get_count(struct mount *mnt);
-+
-+struct dentry *cow_break_link(const char *pathname)
-+{
-+ int ret, mode, pathlen, redo = 0;
-+ struct nameidata old_nd, dir_nd;
-+ struct path old_path, dir_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(real_mount(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 dir inode mutex if successful */
-+ new_dentry = kern_path_create(AT_FDCWD, to, &dir_path, 0);
-+ if (!new_dentry || IS_ERR(new_dentry)) {
-+ path_put(&dir_nd.path);
-+ vxdprintk(VXD_CBIT(misc, 2),
-+ "kern_path_create(new) failed with %ld",
-+ PTR_ERR(new_dentry));
-+ goto retry;
-+ }
-+ path_put(&dir_path);
-+ vxdprintk(VXD_CBIT(misc, 2),
-+ "kern_path_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(real_mount(old_nd.path.mnt)));
-+ return new_dentry;
-+}
-+
-+#endif
-+
-+int vx_info_mnt_namespace(struct mnt_namespace *ns, char *buffer)
-+{
-+ struct path path;
-+ struct vfsmount *vmnt;
-+ char *pstr, *root;
-+ int length = 0;
-+
-+ pstr = kmalloc(PATH_MAX, GFP_KERNEL);
-+ if (!pstr)
-+ return 0;
-+
-+ vmnt = &ns->root->mnt;
-+ path.mnt = vmnt;
-+ path.dentry = vmnt->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);
-+ return length;
-+}
-+
- /* get the link contents into pagecache */
- static char *page_getlink(struct dentry * dentry, struct page **ppage)
- {
-@@ -3998,3 +4388,4 @@ EXPORT_SYMBOL(vfs_symlink);
- EXPORT_SYMBOL(vfs_unlink);
- EXPORT_SYMBOL(dentry_unhash);
- EXPORT_SYMBOL(generic_readlink);
-+EXPORT_SYMBOL(vx_info_mnt_namespace);
-diff -NurpP --minimal linux-3.6/fs/namespace.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/namespace.c
---- linux-3.6/fs/namespace.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/namespace.c 2012-10-04 18:47:00.000000000 +0200
-@@ -20,6 +20,11 @@
- #include <linux/fs_struct.h> /* get_fs_root et.al. */
- #include <linux/fsnotify.h> /* fsnotify_vfsmount_delete */
- #include <linux/uaccess.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 "pnode.h"
- #include "internal.h"
-
-@@ -749,6 +754,10 @@ 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);
-@@ -801,6 +810,7 @@ static struct mount *clone_mnt(struct mo
- mnt->mnt.mnt_root = dget(root);
- mnt->mnt_mountpoint = mnt->mnt.mnt_root;
- mnt->mnt_parent = mnt;
-+ mnt->mnt_tag = old->mnt_tag;
- br_write_lock(&vfsmount_lock);
- list_add_tail(&mnt->mnt_instance, &sb->s_mounts);
- br_write_unlock(&vfsmount_lock);
-@@ -1266,7 +1276,7 @@ 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(mnt, flags);
-@@ -1292,7 +1302,7 @@ 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
-@@ -1610,7 +1620,7 @@ 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)
-@@ -1626,6 +1636,7 @@ 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))
-@@ -1641,12 +1652,14 @@ 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 mount *mnt = NULL, *old;
- int err = mount_is_safe(path);
-+ int recurse = flags & MS_REC;
-+
- if (err)
- return err;
- if (!old_name || !*old_name)
-@@ -1715,13 +1728,13 @@ 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;
- struct mount *mnt = real_mount(path->mnt);
-
-- if (!capable(CAP_SYS_ADMIN))
-+ if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_REMOUNT))
- return -EPERM;
-
- if (!check_mnt(mnt))
-@@ -1770,7 +1783,7 @@ static int do_move_mount(struct path *pa
- struct mount *p;
- struct mount *old;
- 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;
-@@ -1927,7 +1940,7 @@ 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);
-@@ -2197,6 +2210,7 @@ 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)
-@@ -2224,6 +2238,12 @@ 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;
-@@ -2240,15 +2260,17 @@ 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)
-@@ -2329,6 +2351,7 @@ static struct mnt_namespace *dup_mnt_ns(
- q = next_mnt(q, new);
- }
- up_write(&namespace_sem);
-+ atomic_inc(&vs_global_mnt_ns);
-
- if (rootmnt)
- mntput(rootmnt);
-@@ -2524,9 +2547,10 @@ SYSCALL_DEFINE2(pivot_root, const char _
- error = -EINVAL;
- new_mnt = real_mount(new.mnt);
- root_mnt = real_mount(root.mnt);
-- if (IS_MNT_SHARED(real_mount(old.mnt)) ||
-+ if ((IS_MNT_SHARED(real_mount(old.mnt)) ||
- IS_MNT_SHARED(new_mnt->mnt_parent) ||
-- IS_MNT_SHARED(root_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;
-@@ -2647,6 +2671,7 @@ 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);
- }
-
-diff -NurpP --minimal linux-3.6/fs/nfs/client.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/client.c
---- linux-3.6/fs/nfs/client.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/client.c 2012-10-04 18:47:00.000000000 +0200
-@@ -692,6 +692,9 @@ int nfs_init_server_rpcclient(struct nfs
- 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;
- }
- EXPORT_SYMBOL_GPL(nfs_init_server_rpcclient);
-@@ -870,6 +873,10 @@ 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-3.6/fs/nfs/dir.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/dir.c
---- linux-3.6/fs/nfs/dir.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/dir.c 2012-10-04 18:47:00.000000000 +0200
-@@ -36,6 +36,7 @@
- #include <linux/sched.h>
- #include <linux/kmemleak.h>
- #include <linux/xattr.h>
-+#include <linux/vs_tag.h>
-
- #include "delegation.h"
- #include "iostat.h"
-@@ -1251,6 +1252,7 @@ struct dentry *nfs_lookup(struct inode *
- /* Success: notify readdir to use READDIRPLUS */
- nfs_advise_use_readdirplus(dir);
-
-+ dx_propagate_tag(nd, inode);
- no_entry:
- res = d_materialise_unique(dentry, inode);
- if (res != NULL) {
-diff -NurpP --minimal linux-3.6/fs/nfs/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/inode.c
---- linux-3.6/fs/nfs/inode.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -39,6 +39,7 @@
- #include <linux/compat.h>
- #include <linux/freezer.h>
- #include <linux/crc32.h>
-+#include <linux/vs_tag.h>
-
- #include <asm/uaccess.h>
-
-@@ -279,6 +280,8 @@ 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) */
-@@ -323,8 +326,8 @@ nfs_fhget(struct super_block *sb, struct
- inode->i_version = 0;
- inode->i_size = 0;
- clear_nlink(inode);
-- inode->i_uid = -2;
-- inode->i_gid = -2;
-+ uid = -2;
-+ gid = -2;
- inode->i_blocks = 0;
- memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
- nfsi->write_io = 0;
-@@ -358,11 +361,11 @@ 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;
- 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;
- if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
-@@ -373,6 +376,11 @@ 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);
- }
-@@ -965,6 +975,9 @@ 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;
-
-
- if (nfs_have_delegated_attributes(inode))
-@@ -990,13 +1003,18 @@ 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)
-@@ -1300,6 +1318,9 @@ 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 fh_crc=0x%08x ct=%d info=0x%x)\n",
- __func__, inode->i_sb->s_id, inode->i_ino,
-@@ -1401,6 +1422,9 @@ 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));
-@@ -1422,9 +1446,9 @@ 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
-@@ -1433,9 +1457,9 @@ 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
-@@ -1443,6 +1467,10 @@ 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-3.6/fs/nfs/nfs3xdr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/nfs3xdr.c
---- linux-3.6/fs/nfs/nfs3xdr.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/nfs3xdr.c 2012-10-04 18:47:00.000000000 +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
-@@ -560,7 +561,8 @@ 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;
-@@ -592,15 +594,19 @@ 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;
-
-@@ -879,7 +885,7 @@ 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);
- }
-
-@@ -1029,13 +1035,13 @@ 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);
-@@ -1050,7 +1056,7 @@ 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);
- }
-
- /*
-@@ -1066,7 +1072,7 @@ 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);
- }
-
- /*
-@@ -1083,9 +1089,9 @@ 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);
- }
-
-@@ -1094,7 +1100,7 @@ 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);
- }
-
- /*
-@@ -1122,24 +1128,24 @@ 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:
-@@ -1154,7 +1160,7 @@ 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-3.6/fs/nfs/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/super.c
---- linux-3.6/fs/nfs/super.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfs/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -54,6 +54,7 @@
- #include <linux/parser.h>
- #include <linux/nsproxy.h>
- #include <linux/rcupdate.h>
-+#include <linux/vs_tag.h>
-
- #include <asm/uaccess.h>
-
-@@ -88,6 +89,7 @@ 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_mountport,
- Opt_mountvers,
- Opt_minorversion,
-+ Opt_tagid,
-
- /* Mount options that take string arguments */
- Opt_nfsvers,
-@@ -182,6 +185,10 @@ static const match_table_t nfs_mount_opt
- /* The following needs to be listed after all other options */
- { Opt_nfsvers, "v%s" },
-
-+ { Opt_tag, "tag" },
-+ { Opt_notag, "notag" },
-+ { Opt_tagid, "tagid=%u" },
-+
- { Opt_err, NULL }
- };
-
-@@ -626,6 +633,7 @@ 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;
-@@ -1243,6 +1251,14 @@ 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
-@@ -1329,6 +1345,12 @@ 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-3.6/fs/nfsd/auth.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/auth.c
---- linux-3.6/fs/nfsd/auth.c 2012-07-22 23:39:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/auth.c 2012-10-04 18:47:00.000000000 +0200
-@@ -2,6 +2,7 @@
-
- #include <linux/sched.h>
- #include <linux/user_namespace.h>
-+#include <linux/vs_tag.h>
- #include "nfsd.h"
- #include "auth.h"
-
-@@ -37,6 +38,9 @@ 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-3.6/fs/nfsd/nfs3xdr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfs3xdr.c
---- linux-3.6/fs/nfsd/nfs3xdr.c 2012-05-21 18:07:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfs3xdr.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/nfsd/nfs4xdr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfs4xdr.c
---- linux-3.6/fs/nfsd/nfs4xdr.c 2012-10-04 15:27:40.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfs4xdr.c 2012-10-04 18:47:00.000000000 +0200
-@@ -46,6 +46,7 @@
- #include <linux/utsname.h>
- #include <linux/pagemap.h>
- #include <linux/sunrpc/svcauth_gss.h>
-+#include <linux/vs_tag.h>
-
- #include "idmap.h"
- #include "acl.h"
-@@ -2351,14 +2352,18 @@ 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-3.6/fs/nfsd/nfsxdr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfsxdr.c
---- linux-3.6/fs/nfsd/nfsxdr.c 2011-05-22 16:17:53.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/nfsd/nfsxdr.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/ocfs2/dlmglue.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/dlmglue.c
---- linux-3.6/fs/ocfs2/dlmglue.c 2012-07-22 23:39:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/dlmglue.c 2012-10-04 18:47:00.000000000 +0200
-@@ -2047,6 +2047,7 @@ 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 =
-@@ -2097,6 +2098,7 @@ 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);
- set_nlink(inode, be16_to_cpu(lvb->lvb_inlink));
- ocfs2_unpack_timespec(&inode->i_atime,
-diff -NurpP --minimal linux-3.6/fs/ocfs2/dlmglue.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/dlmglue.h
---- linux-3.6/fs/ocfs2/dlmglue.h 2010-10-21 13:07:50.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/dlmglue.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/ocfs2/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/file.c
---- linux-3.6/fs/ocfs2/file.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1123,7 +1123,7 @@ 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-3.6/fs/ocfs2/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/inode.c
---- linux-3.6/fs/ocfs2/inode.c 2012-07-22 23:39:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/inode.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/ocfs2/inode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/inode.h
---- linux-3.6/fs/ocfs2/inode.h 2012-01-09 16:14:55.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/inode.h 2012-10-04 18:47:00.000000000 +0200
-@@ -154,6 +154,7 @@ 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-3.6/fs/ocfs2/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ioctl.c
---- linux-3.6/fs/ocfs2/ioctl.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ioctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -76,7 +76,41 @@ 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);
-@@ -101,6 +135,11 @@ 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);
-@@ -879,6 +918,7 @@ 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-3.6/fs/ocfs2/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/namei.c
---- linux-3.6/fs/ocfs2/namei.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/namei.c 2012-10-04 18:47:00.000000000 +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>
-
-@@ -475,6 +476,7 @@ 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;
-
-@@ -512,8 +514,11 @@ 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-3.6/fs/ocfs2/ocfs2.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ocfs2.h
---- linux-3.6/fs/ocfs2/ocfs2.h 2012-01-09 16:14:55.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ocfs2.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/ocfs2/ocfs2_fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ocfs2_fs.h
---- linux-3.6/fs/ocfs2/ocfs2_fs.h 2011-05-22 16:17:53.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/ocfs2_fs.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/ocfs2/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/super.c
---- linux-3.6/fs/ocfs2/super.c 2012-05-21 18:07:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/ocfs2/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -185,6 +185,7 @@ enum {
- Opt_coherency_full,
- Opt_resv_level,
- Opt_dir_resv_level,
-+ Opt_tag, Opt_notag, Opt_tagid,
- Opt_err,
- };
-
-@@ -216,6 +217,9 @@ 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
-@@ -1503,6 +1517,20 @@ 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-3.6/fs/open.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/open.c
---- linux-3.6/fs/open.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/open.c 2012-10-04 18:47:00.000000000 +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"
-
-@@ -74,6 +79,12 @@ static long do_sys_truncate(const char _
- error = user_path(pathname, &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;
-
- /* For directories it's -EISDIR, for other non-regulars - -EINVAL */
-@@ -495,6 +506,10 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons
-
- error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
- if (!error) {
-+#ifdef CONFIG_VSERVER_COWBL
-+ error = cow_check_and_break(&path);
-+ if (!error)
-+#endif
- error = chmod_common(&path, mode);
- path_put(&path);
- }
-@@ -522,13 +537,13 @@ static int chown_common(struct path *pat
- if (!uid_valid(uid))
- return -EINVAL;
- newattrs.ia_valid |= ATTR_UID;
-- newattrs.ia_uid = uid;
-+ newattrs.ia_uid = dx_map_uid(user);
- }
- if (group != (gid_t) -1) {
- if (!gid_valid(gid))
- return -EINVAL;
- newattrs.ia_valid |= ATTR_GID;
-- newattrs.ia_gid = gid;
-+ newattrs.ia_gid = dx_map_gid(group);
- }
- if (!S_ISDIR(inode->i_mode))
- newattrs.ia_valid |=
-@@ -561,6 +576,18 @@ 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
-+#ifdef CONFIG_VSERVER_COWBL
-+ error = cow_check_and_break(&path);
-+ if (!error)
-+#endif
-+#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:
-@@ -809,6 +836,7 @@ static void __put_unused_fd(struct files
- __clear_open_fd(fd, fdt);
- if (fd < files->next_fd)
- files->next_fd = fd;
-+ vx_openfd_dec(fd);
- }
-
- void put_unused_fd(unsigned int fd)
-diff -NurpP --minimal linux-3.6/fs/proc/array.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/array.c
---- linux-3.6/fs/proc/array.c 2012-07-22 23:39:42.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/array.c 2012-10-04 18:47:00.000000000 +0200
-@@ -82,6 +82,8 @@
- #include <linux/ptrace.h>
- #include <linux/tracehook.h>
- #include <linux/user_namespace.h>
-+#include <linux/vs_context.h>
-+#include <linux/vs_network.h>
-
- #include <asm/pgtable.h>
- #include <asm/processor.h>
-@@ -172,6 +174,9 @@ 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 = ptrace_parent(p);
-@@ -296,7 +301,7 @@ 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;
-
-@@ -321,10 +326,11 @@ 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,
-@@ -346,6 +352,42 @@ 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)
- {
-@@ -362,6 +404,7 @@ 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;
- }
-@@ -471,6 +514,17 @@ 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", pid_nr_ns(pid, ns), tcomm, state);
- seq_put_decimal_ll(m, ' ', ppid);
- seq_put_decimal_ll(m, ' ', pgid);
-diff -NurpP --minimal linux-3.6/fs/proc/base.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/base.c
---- linux-3.6/fs/proc/base.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/base.c 2012-10-04 18:47:00.000000000 +0200
-@@ -85,6 +85,8 @@
- #include <linux/fs_struct.h>
- #include <linux/slab.h>
- #include <linux/flex_array.h>
-+#include <linux/vs_context.h>
-+#include <linux/vs_network.h>
- #ifdef CONFIG_HARDWALL
- #include <asm/hardwall.h>
- #endif
-@@ -941,11 +943,16 @@ 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;
-+
- /*
- * Warn that /proc/pid/oom_adj is deprecated, see
- * Documentation/feature-removal-schedule.txt.
-@@ -1548,6 +1555,8 @@ 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:
-@@ -1593,6 +1602,8 @@ 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
-@@ -1621,6 +1632,12 @@ 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();
-@@ -1637,6 +1654,7 @@ int pid_revalidate(struct dentry *dentry
- put_task_struct(task);
- return 1;
- }
-+drop:
- d_drop(dentry);
- return 0;
- }
-@@ -2457,6 +2475,13 @@ 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.
-@@ -2842,7 +2867,7 @@ 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);
-@@ -3017,6 +3042,9 @@ 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),
-@@ -3083,6 +3111,8 @@ 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),
-@@ -3106,6 +3136,7 @@ static const struct pid_entry tgid_base_
- REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations),
- REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations),
- #endif
-+ ONE("nsproxy", S_IRUGO, proc_pid_nsproxy),
- };
-
- static int proc_tgid_base_readdir(struct file * filp,
-@@ -3300,7 +3331,7 @@ 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
-@@ -3330,7 +3361,7 @@ 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);
- }
-@@ -3354,7 +3385,7 @@ 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;
-
-@@ -3376,6 +3407,8 @@ int proc_pid_readdir(struct file * filp,
- __filldir = fake_filldir;
-
- 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;
-@@ -3537,6 +3570,8 @@ 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-3.6/fs/proc/generic.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/generic.c
---- linux-3.6/fs/proc/generic.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/generic.c 2012-10-04 18:47:00.000000000 +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);
-@@ -626,6 +634,7 @@ 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);
-@@ -649,7 +658,8 @@ 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-3.6/fs/proc/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/inode.c
---- linux-3.6/fs/proc/inode.c 2012-07-22 23:39:42.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -458,6 +458,8 @@ 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-3.6/fs/proc/internal.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/internal.h
---- linux-3.6/fs/proc/internal.h 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/internal.h 2012-10-04 18:47:00.000000000 +0200
-@@ -10,6 +10,8 @@
- */
-
- #include <linux/proc_fs.h>
-+#include <linux/vs_pid.h>
-+
- struct ctl_table_header;
-
- extern struct proc_dir_entry proc_root;
-@@ -52,6 +54,9 @@ 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_tid_children_operations;
-@@ -81,11 +86,16 @@ 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-3.6/fs/proc/loadavg.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/loadavg.c
---- linux-3.6/fs/proc/loadavg.c 2009-09-10 15:26:23.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/loadavg.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/proc/meminfo.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/meminfo.c
---- linux-3.6/fs/proc/meminfo.c 2012-01-09 16:14:55.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/meminfo.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/proc/root.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/root.c
---- linux-3.6/fs/proc/root.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/root.c 2012-10-04 18:47:00.000000000 +0200
-@@ -19,9 +19,14 @@
- #include <linux/mount.h>
- #include <linux/pid_namespace.h>
- #include <linux/parser.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;
-@@ -189,6 +194,7 @@ 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
-@@ -255,6 +261,7 @@ 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,
- .name = "/proc",
- };
-
-diff -NurpP --minimal linux-3.6/fs/proc/stat.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/stat.c
---- linux-3.6/fs/proc/stat.c 2012-05-21 18:07:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/stat.c 2012-10-04 18:47:00.000000000 +0200
-@@ -9,6 +9,7 @@
- #include <linux/slab.h>
- #include <linux/time.h>
- #include <linux/irqnr.h>
-+#include <linux/vserver/cvirt.h>
- #include <asm/cputime.h>
- #include <linux/tick.h>
-
-@@ -86,6 +87,10 @@ static int show_stat(struct seq_file *p,
- irq = softirq = steal = 0;
- guest = guest_nice = 0;
- getboottime(&boottime);
-+
-+ if (vx_flags(VXF_VIRT_UPTIME, 0))
-+ vx_vsi_boottime(&boottime);
-+
- jif = boottime.tv_sec;
-
- for_each_possible_cpu(i) {
-diff -NurpP --minimal linux-3.6/fs/proc/uptime.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/uptime.c
---- linux-3.6/fs/proc/uptime.c 2012-03-19 19:47:26.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc/uptime.c 2012-10-04 18:47:00.000000000 +0200
-@@ -5,6 +5,7 @@
- #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)
-@@ -25,6 +26,10 @@ static int uptime_proc_show(struct seq_f
- nsec = cputime64_to_jiffies64(idletime) * TICK_NSEC;
- idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
- idle.tv_nsec = rem;
-+
-+ 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-3.6/fs/proc_namespace.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc_namespace.c
---- linux-3.6/fs/proc_namespace.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/proc_namespace.c 2012-10-04 18:47:00.000000000 +0200
-@@ -44,6 +44,8 @@ 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;
-@@ -80,6 +82,34 @@ static inline void mangle(struct seq_fil
- seq_escape(m, s, " \t\n\\");
- }
-
-+static int mnt_is_reachable(struct vfsmount *vfsmnt)
-+{
-+ struct path root;
-+ struct dentry *point;
-+ struct mount *mnt = real_mount(vfsmnt);
-+ struct mount *root_mnt;
-+ int ret;
-+
-+ if (mnt == mnt->mnt_ns->root)
-+ return 1;
-+
-+ br_read_lock(&vfsmount_lock);
-+ root = current->fs->root;
-+ root_mnt = real_mount(root.mnt);
-+ 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;
-+}
-+
- static void show_type(struct seq_file *m, struct super_block *sb)
- {
- mangle(m, sb->s_type->name);
-@@ -96,6 +126,17 @@ static int show_vfsmnt(struct seq_file *
- struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
- struct super_block *sb = mnt_path.dentry->d_sb;
-
-+ 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 / ");
-+ goto type;
-+ }
-+
- if (sb->s_op->show_devname) {
- err = sb->s_op->show_devname(m, mnt_path.dentry);
- if (err)
-@@ -106,6 +147,7 @@ static int show_vfsmnt(struct seq_file *
- seq_putc(m, ' ');
- seq_path(m, &mnt_path, " \t\n\\");
- seq_putc(m, ' ');
-+type:
- show_type(m, sb);
- seq_puts(m, __mnt_is_readonly(mnt) ? " ro" : " rw");
- err = show_sb_opts(m, sb);
-@@ -128,6 +170,11 @@ 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 ", r->mnt_id, r->mnt_parent->mnt_id,
- MAJOR(sb->s_dev), MINOR(sb->s_dev));
- if (sb->s_op->show_path)
-@@ -187,6 +234,17 @@ static int show_vfsstat(struct seq_file
- struct super_block *sb = mnt_path.dentry->d_sb;
- 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;
-+
-+ if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
-+ mnt == current->fs->root.mnt) {
-+ seq_puts(m, "device /dev/root mounted on / ");
-+ goto type;
-+ }
-+
- /* device */
- if (sb->s_op->show_devname) {
- seq_puts(m, "device ");
-@@ -203,7 +261,7 @@ static int show_vfsstat(struct seq_file
- seq_puts(m, " mounted on ");
- seq_path(m, &mnt_path, " \t\n\\");
- seq_putc(m, ' ');
--
-+type:
- /* file system type */
- seq_puts(m, "with fstype ");
- show_type(m, sb);
-diff -NurpP --minimal linux-3.6/fs/quota/dquot.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/quota/dquot.c
---- linux-3.6/fs/quota/dquot.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/quota/dquot.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1580,6 +1580,9 @@ int __dquot_alloc_space(struct inode *in
- struct dquot **dquots = inode->i_dquot;
- int reserve = flags & DQUOT_SPACE_RESERVE;
-
-+ 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
-@@ -1635,6 +1638,9 @@ int dquot_alloc_inode(const struct inode
- struct dquot_warn warn[MAXQUOTAS];
- struct dquot * const *dquots = inode->i_dquot;
-
-+ 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))
-@@ -1706,6 +1712,8 @@ void __dquot_free_space(struct inode *in
- struct dquot **dquots = inode->i_dquot;
- 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)) {
-@@ -1750,6 +1758,8 @@ void dquot_free_inode(const struct inode
- struct dquot_warn warn[MAXQUOTAS];
- struct dquot * const *dquots = inode->i_dquot;
-
-+ 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-3.6/fs/quota/quota.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/quota/quota.c
---- linux-3.6/fs/quota/quota.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/quota/quota.c 2012-10-04 18:47:00.000000000 +0200
-@@ -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 <linux/uaccess.h>
- #include <linux/kernel.h>
-@@ -37,7 +38,7 @@ 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;
- }
-
-@@ -291,6 +292,46 @@ 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
-+
- /* Return 1 if 'cmd' will block on frozen filesystem */
- static int quotactl_cmd_write(int cmd)
- {
-@@ -323,6 +364,22 @@ 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
- if (quotactl_cmd_write(cmd))
- sb = get_super_thawed(bdev);
- else
-diff -NurpP --minimal linux-3.6/fs/reiserfs/file.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/file.c
---- linux-3.6/fs/reiserfs/file.c 2012-05-21 18:07:26.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/file.c 2012-10-04 18:47:00.000000000 +0200
-@@ -319,5 +319,6 @@ const struct inode_operations reiserfs_f
- .listxattr = reiserfs_listxattr,
- .removexattr = reiserfs_removexattr,
- .permission = reiserfs_permission,
-+ .sync_flags = reiserfs_sync_flags,
- .get_acl = reiserfs_get_acl,
- };
-diff -NurpP --minimal linux-3.6/fs/reiserfs/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/inode.c
---- linux-3.6/fs/reiserfs/inode.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/inode.c 2012-10-04 18:47:00.000000000 +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);
- set_nlink(inode, 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);
- set_nlink(inode, 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);
-@@ -2862,14 +2873,19 @@ 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
-@@ -2882,6 +2898,15 @@ 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;
- }
- }
-
-@@ -2892,6 +2917,11 @@ 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
-@@ -2904,6 +2934,15 @@ 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;
- }
- }
-
-@@ -3149,7 +3188,8 @@ 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 *
-@@ -3178,6 +3218,9 @@ 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-3.6/fs/reiserfs/ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/ioctl.c
---- linux-3.6/fs/reiserfs/ioctl.c 2012-05-21 18:07:27.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/ioctl.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/reiserfs/namei.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/namei.c
---- linux-3.6/fs/reiserfs/namei.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/namei.c 2012-10-04 18:47:00.000000000 +0200
-@@ -18,6 +18,7 @@
- #include "acl.h"
- #include "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) set_nlink(i, 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);
- }
-diff -NurpP --minimal linux-3.6/fs/reiserfs/reiserfs.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/reiserfs.h
---- linux-3.6/fs/reiserfs/reiserfs.h 2012-07-22 23:39:42.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/reiserfs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -549,6 +549,7 @@ enum reiserfs_mount_options {
- REISERFS_EXPOSE_PRIVROOT,
- REISERFS_BARRIER_NONE,
- REISERFS_BARRIER_FLUSH,
-+ REISERFS_TAGGED,
-
- /* Actions on error */
- REISERFS_ERROR_PANIC,
-@@ -1548,6 +1549,11 @@ 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 | \
-@@ -1557,6 +1563,9 @@ 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 {
-@@ -2647,6 +2656,7 @@ 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-3.6/fs/reiserfs/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/super.c
---- linux-3.6/fs/reiserfs/super.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1018,6 +1018,14 @@ 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},
-@@ -1336,6 +1344,14 @@ 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 */
-@@ -1816,6 +1832,10 @@ static int reiserfs_fill_super(struct su
- goto error_unlocked;
- }
-
-+ /* 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-3.6/fs/reiserfs/xattr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/xattr.c
---- linux-3.6/fs/reiserfs/xattr.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/reiserfs/xattr.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/stat.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/stat.c
---- linux-3.6/fs/stat.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/stat.c 2012-10-04 18:47:00.000000000 +0200
-@@ -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->size = i_size_read(inode);
- stat->atime = inode->i_atime;
-diff -NurpP --minimal linux-3.6/fs/statfs.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/statfs.c
---- linux-3.6/fs/statfs.c 2012-07-22 23:39:42.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/statfs.c 2012-10-04 18:47:00.000000000 +0200
-@@ -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>
- #include "internal.h"
-
- static int flags_by_mnt(int mnt_flags)
-@@ -60,6 +62,8 @@ static int statfs_by_dentry(struct dentr
- 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-3.6/fs/super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/super.c
---- linux-3.6/fs/super.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/super.c 2012-10-04 19:06:05.000000000 +0200
-@@ -34,6 +34,8 @@
- #include <linux/cleancache.h>
- #include <linux/fsnotify.h>
- #include <linux/lockdep.h>
-+#include <linux/magic.h>
-+#include <linux/vs_context.h>
- #include "internal.h"
-
-
-@@ -1148,6 +1150,13 @@ 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-3.6/fs/sysfs/mount.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/sysfs/mount.c
---- linux-3.6/fs/sysfs/mount.c 2012-10-04 15:27:41.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/sysfs/mount.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/utimes.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/utimes.c
---- linux-3.6/fs/utimes.c 2012-07-22 23:39:42.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/utimes.c 2012-10-04 18:47:00.000000000 +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-3.6/fs/xattr.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xattr.c
---- linux-3.6/fs/xattr.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xattr.c 2012-10-04 18:47:00.000000000 +0200
-@@ -20,6 +20,7 @@
- #include <linux/fsnotify.h>
- #include <linux/audit.h>
- #include <linux/vmalloc.h>
-+#include <linux/mount.h>
-
- #include <asm/uaccess.h>
-
-@@ -51,7 +52,7 @@ 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-3.6/fs/xfs/xfs_dinode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_dinode.h
---- linux-3.6/fs/xfs/xfs_dinode.h 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_dinode.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/xfs/xfs_fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_fs.h
---- linux-3.6/fs/xfs/xfs_fs.h 2011-10-24 18:45:31.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_fs.h 2012-10-04 18:47:00.000000000 +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 */
-
- /*
-@@ -302,7 +305,8 @@ 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-3.6/fs/xfs/xfs_ialloc.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ialloc.c
---- linux-3.6/fs/xfs/xfs_ialloc.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ialloc.c 2012-10-04 18:47:00.000000000 +0200
-@@ -37,7 +37,6 @@
- #include "xfs_error.h"
- #include "xfs_bmap.h"
-
--
- /*
- * Allocation group level functions.
- */
-diff -NurpP --minimal linux-3.6/fs/xfs/xfs_inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_inode.c
---- linux-3.6/fs/xfs/xfs_inode.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1833,6 +1833,7 @@ xfs_iroot_realloc(
- return;
- }
-
-+#include <linux/vs_tag.h>
-
- /*
- * This is called when the amount of space needed for if_data
-@@ -2521,7 +2522,8 @@ 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-3.6/fs/xfs/xfs_inode.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_inode.h
---- linux-3.6/fs/xfs/xfs_inode.h 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_inode.h 2012-10-04 18:47:00.000000000 +0200
-@@ -134,7 +134,9 @@ 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 */
-@@ -561,7 +563,7 @@ int xfs_imap_to_bp(struct xfs_mount *,
- 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-3.6/fs/xfs/xfs_ioctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ioctl.c
---- linux-3.6/fs/xfs/xfs_ioctl.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ioctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -26,7 +26,7 @@
- #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"
-@@ -762,6 +762,10 @@ 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
-@@ -790,6 +794,8 @@ 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)
-@@ -850,6 +856,8 @@ 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)
-@@ -892,6 +900,10 @@ 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
-@@ -1396,10 +1408,18 @@ 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-3.6/fs/xfs/xfs_ioctl.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ioctl.h
---- linux-3.6/fs/xfs/xfs_ioctl.h 2011-10-24 18:45:31.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_ioctl.h 2012-10-04 18:47:00.000000000 +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-3.6/fs/xfs/xfs_iops.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_iops.c
---- linux-3.6/fs/xfs/xfs_iops.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_iops.c 2012-10-04 18:47:00.000000000 +0200
-@@ -28,6 +28,7 @@
- #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"
-@@ -46,6 +47,7 @@
- #include <linux/security.h>
- #include <linux/fiemap.h>
- #include <linux/slab.h>
-+#include <linux/vs_tag.h>
-
- static int
- xfs_initxattrs(
-@@ -421,6 +423,7 @@ 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;
-@@ -1110,6 +1113,10 @@ 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
-@@ -1122,6 +1129,15 @@ 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;
- }
-
- /*
-@@ -1153,6 +1169,7 @@ xfs_setup_inode(
- set_nlink(inode, 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-3.6/fs/xfs/xfs_itable.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_itable.c
---- linux-3.6/fs/xfs/xfs_itable.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_itable.c 2012-10-04 18:47:00.000000000 +0200
-@@ -96,6 +96,7 @@ 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;
- buf->bs_atime.tv_sec = dic->di_atime.t_sec;
- buf->bs_atime.tv_nsec = dic->di_atime.t_nsec;
-diff -NurpP --minimal linux-3.6/fs/xfs/xfs_linux.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_linux.h
---- linux-3.6/fs/xfs/xfs_linux.h 2011-10-24 18:45:31.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_linux.h 2012-10-04 18:47:00.000000000 +0200
-@@ -121,6 +121,7 @@
-
- #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-3.6/fs/xfs/xfs_log_recover.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_log_recover.c
---- linux-3.6/fs/xfs/xfs_log_recover.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_log_recover.c 2012-10-04 18:47:00.000000000 +0200
-@@ -2359,7 +2359,8 @@ 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-3.6/fs/xfs/xfs_mount.h linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_mount.h
---- linux-3.6/fs/xfs/xfs_mount.h 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_mount.h 2012-10-04 18:47:00.000000000 +0200
-@@ -251,6 +251,7 @@ 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-3.6/fs/xfs/xfs_super.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_super.c
---- linux-3.6/fs/xfs/xfs_super.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_super.c 2012-10-04 18:47:00.000000000 +0200
-@@ -112,6 +112,9 @@ 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.
-@@ -120,10 +123,14 @@ 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}
-@@ -371,6 +378,19 @@ 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;
-@@ -1056,6 +1076,16 @@ 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
-@@ -1275,6 +1305,9 @@ 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-3.6/fs/xfs/xfs_vnodeops.c linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_vnodeops.c
---- linux-3.6/fs/xfs/xfs_vnodeops.c 2012-10-04 15:27:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/fs/xfs/xfs_vnodeops.c 2012-10-04 18:47:00.000000000 +0200
-@@ -103,6 +103,77 @@ xfs_readlink_bmap(
- return error;
- }
-
-+
-+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, 0);
-+
-+ 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_readlink(
- xfs_inode_t *ip,
-diff -NurpP --minimal linux-3.6/include/linux/Kbuild linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/Kbuild
---- linux-3.6/include/linux/Kbuild 2012-10-04 15:27:45.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/Kbuild 2012-10-04 18:47:00.000000000 +0200
-@@ -18,6 +18,7 @@ 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-3.6/include/linux/capability.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/capability.h
---- linux-3.6/include/linux/capability.h 2012-07-22 23:39:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/capability.h 2012-10-04 18:47:00.000000000 +0200
-@@ -280,6 +280,7 @@ 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
-
-@@ -366,7 +367,12 @@ struct cpu_vfs_cap_data {
-
- #define CAP_LAST_CAP CAP_BLOCK_SUSPEND
-
--#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-3.6/include/linux/cred.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/cred.h
---- linux-3.6/include/linux/cred.h 2012-07-22 23:39:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/cred.h 2012-10-04 18:47:00.000000000 +0200
-@@ -157,6 +157,7 @@ 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 *);
-@@ -210,6 +211,31 @@ 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-3.6/include/linux/devpts_fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/devpts_fs.h
---- linux-3.6/include/linux/devpts_fs.h 2008-12-25 00:26:37.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/devpts_fs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -45,5 +45,4 @@ static inline void devpts_pty_kill(struc
-
- #endif
-
--
- #endif /* _LINUX_DEVPTS_FS_H */
-diff -NurpP --minimal linux-3.6/include/linux/fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/fs.h
---- linux-3.6/include/linux/fs.h 2012-10-04 15:27:45.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/fs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -225,6 +225,9 @@ 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)
-@@ -256,6 +259,14 @@ 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
-@@ -278,12 +289,15 @@ 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)
-@@ -294,6 +308,16 @@ 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. */
-
-@@ -380,11 +404,14 @@ 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
-@@ -472,6 +499,7 @@ 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
-@@ -487,6 +515,7 @@ struct iattr {
- umode_t ia_mode;
- kuid_t ia_uid;
- kgid_t ia_gid;
-+ tag_t ia_tag;
- loff_t ia_size;
- struct timespec ia_atime;
- struct timespec ia_mtime;
-@@ -500,6 +529,9 @@ 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.
- */
-@@ -784,7 +816,9 @@ struct inode {
- unsigned short i_opflags;
- kuid_t i_uid;
- kgid_t i_gid;
-- unsigned int i_flags;
-+ tag_t i_tag;
-+ unsigned short i_flags;
-+ unsigned short i_vflags;
-
- #ifdef CONFIG_FS_POSIX_ACL
- struct posix_acl *i_acl;
-@@ -813,6 +847,7 @@ struct inode {
- unsigned int __i_nlink;
- };
- dev_t i_rdev;
-+ dev_t i_mdev;
- loff_t i_size;
- struct timespec i_atime;
- struct timespec i_mtime;
-@@ -975,12 +1010,12 @@ static inline void i_gid_write(struct in
-
- 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);
-@@ -1047,6 +1082,7 @@ 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;
-@@ -1194,6 +1230,7 @@ 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 */
- /* for lease breaks: */
-@@ -1829,6 +1866,7 @@ 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);
- int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
- u64 len);
- int (*update_time)(struct inode *, struct timespec *, int);
-@@ -1850,6 +1888,7 @@ 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);
-@@ -2692,6 +2731,7 @@ 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-3.6/include/linux/gfs2_ondisk.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/gfs2_ondisk.h
---- linux-3.6/include/linux/gfs2_ondisk.h 2012-10-04 15:27:45.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/gfs2_ondisk.h 2012-10-04 18:54:29.000000000 +0200
-@@ -225,6 +225,9 @@ enum {
- gfs2fl_Sync = 8,
- gfs2fl_System = 9,
- gfs2fl_TopLevel = 10,
-+ gfs2fl_IXUnlink = 16,
-+ gfs2fl_Barrier = 17,
-+ gfs2fl_Cow = 18,
- gfs2fl_TruncInProg = 29,
- gfs2fl_InheritDirectio = 30,
- gfs2fl_InheritJdata = 31,
-@@ -242,6 +245,9 @@ enum {
- #define GFS2_DIF_SYNC 0x00000100
- #define GFS2_DIF_SYSTEM 0x00000200 /* New in gfs2 */
- #define GFS2_DIF_TOPDIR 0x00000400 /* 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 /* only in gfs1 */
- #define GFS2_DIF_INHERIT_JDATA 0x80000000
-diff -NurpP --minimal linux-3.6/include/linux/if_tun.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/if_tun.h
---- linux-3.6/include/linux/if_tun.h 2010-08-02 16:52:54.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/if_tun.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/init_task.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/init_task.h
---- linux-3.6/include/linux/init_task.h 2012-10-04 15:27:45.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/init_task.h 2012-10-04 18:47:00.000000000 +0200
-@@ -210,6 +210,10 @@ extern struct task_group root_task_group
- INIT_TRACE_RECURSION \
- INIT_TASK_RCU_PREEMPT(tsk) \
- INIT_CPUSET_SEQ \
-+ .xid = 0, \
-+ .vx_info = NULL, \
-+ .nid = 0, \
-+ .nx_info = NULL, \
- }
-
-
-diff -NurpP --minimal linux-3.6/include/linux/ipc.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/ipc.h
---- linux-3.6/include/linux/ipc.h 2012-03-19 19:47:28.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/ipc.h 2012-10-04 18:47:00.000000000 +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;
- umode_t mode;
-diff -NurpP --minimal linux-3.6/include/linux/ipc_namespace.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/ipc_namespace.h
---- linux-3.6/include/linux/ipc_namespace.h 2012-07-22 23:39:43.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/ipc_namespace.h 2012-10-04 18:47:00.000000000 +0200
-@@ -133,7 +133,8 @@ 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)
-@@ -144,12 +145,13 @@ 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-3.6/include/linux/loop.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/loop.h
---- linux-3.6/include/linux/loop.h 2012-01-09 16:14:58.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/loop.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/magic.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/magic.h
---- linux-3.6/include/linux/magic.h 2012-05-21 18:07:31.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/magic.h 2012-10-04 18:47:00.000000000 +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 */
-diff -NurpP --minimal linux-3.6/include/linux/major.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/major.h
---- linux-3.6/include/linux/major.h 2009-09-10 15:26:25.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/major.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/memcontrol.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/memcontrol.h
---- linux-3.6/include/linux/memcontrol.h 2012-10-04 15:27:45.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/memcontrol.h 2012-10-04 18:47:00.000000000 +0200
-@@ -83,6 +83,13 @@ extern struct mem_cgroup *try_get_mem_cg
- extern struct mem_cgroup *parent_mem_cgroup(struct mem_cgroup *memcg);
- extern struct mem_cgroup *mem_cgroup_from_cont(struct cgroup *cont);
-
-+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-3.6/include/linux/mm_types.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mm_types.h
---- linux-3.6/include/linux/mm_types.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mm_types.h 2012-10-04 18:47:00.000000000 +0200
-@@ -370,6 +370,7 @@ struct mm_struct {
-
- /* Architecture-specific MM context */
- mm_context_t context;
-+ struct vx_info *mm_vx_info;
-
- unsigned long flags; /* Must use atomic bitops to access the bits */
-
-diff -NurpP --minimal linux-3.6/include/linux/mmzone.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mmzone.h
---- linux-3.6/include/linux/mmzone.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mmzone.h 2012-10-04 18:47:00.000000000 +0200
-@@ -727,6 +727,13 @@ 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-3.6/include/linux/mount.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mount.h
---- linux-3.6/include/linux/mount.h 2012-03-19 19:47:28.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/mount.h 2012-10-04 18:47:00.000000000 +0200
-@@ -47,6 +47,9 @@ struct mnt_namespace;
-
- #define MNT_INTERNAL 0x4000
-
-+#define MNT_TAGID 0x10000
-+#define MNT_NOTAG 0x20000
-+
- struct vfsmount {
- struct dentry *mnt_root; /* root of the mounted tree */
- struct super_block *mnt_sb; /* pointer to superblock */
-diff -NurpP --minimal linux-3.6/include/linux/net.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/net.h
---- linux-3.6/include/linux/net.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/net.h 2012-10-04 18:47:00.000000000 +0200
-@@ -73,6 +73,7 @@ struct net;
- #define SOCK_PASSCRED 3
- #define SOCK_PASSSEC 4
- #define SOCK_EXTERNALLY_ALLOCATED 5
-+#define SOCK_USER_SOCKET 6
-
- #ifndef ARCH_HAS_SOCKET_TYPES
- /**
-diff -NurpP --minimal linux-3.6/include/linux/netdevice.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/netdevice.h
---- linux-3.6/include/linux/netdevice.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/netdevice.h 2012-10-04 18:47:00.000000000 +0200
-@@ -1651,6 +1651,7 @@ extern void netdev_resync_ops(struct ne
-
- 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-3.6/include/linux/nfs_mount.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/nfs_mount.h
---- linux-3.6/include/linux/nfs_mount.h 2011-01-05 21:50:31.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/nfs_mount.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/nsproxy.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/nsproxy.h
---- linux-3.6/include/linux/nsproxy.h 2011-10-24 18:45:32.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/nsproxy.h 2012-10-04 18:47:00.000000000 +0200
-@@ -3,6 +3,7 @@
-
- #include <linux/spinlock.h>
- #include <linux/sched.h>
-+#include <linux/vserver/debug.h>
-
- struct mnt_namespace;
- struct uts_namespace;
-@@ -63,6 +64,7 @@ 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);
-@@ -70,16 +72,26 @@ int unshare_nsproxy_namespaces(unsigned
- struct fs_struct *);
- int __init nsproxy_cache_init(void);
-
--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-3.6/include/linux/pid.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/pid.h
---- linux-3.6/include/linux/pid.h 2011-07-22 11:18:11.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/pid.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/proc_fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/proc_fs.h
---- linux-3.6/include/linux/proc_fs.h 2012-07-22 23:39:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/proc_fs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -54,6 +54,7 @@ struct proc_dir_entry {
- nlink_t nlink;
- kuid_t uid;
- kgid_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 dentry *, 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-3.6/include/linux/quotaops.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/quotaops.h
---- linux-3.6/include/linux/quotaops.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/quotaops.h 2012-10-04 18:47:00.000000000 +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
-@@ -205,11 +206,12 @@ 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)
-@@ -220,6 +222,10 @@ 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;
-@@ -230,6 +236,7 @@ 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-3.6/include/linux/reboot.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/reboot.h
---- linux-3.6/include/linux/reboot.h 2011-10-24 18:45:32.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/reboot.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/sched.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sched.h
---- linux-3.6/include/linux/sched.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sched.h 2012-10-04 18:47:00.000000000 +0200
-@@ -1422,6 +1422,14 @@ struct task_struct {
- #endif
- struct seccomp 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;
-@@ -1668,6 +1676,11 @@ 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;
-@@ -1681,7 +1694,8 @@ 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));
- }
-
-
-@@ -1694,7 +1708,7 @@ 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-3.6/include/linux/shmem_fs.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/shmem_fs.h
---- linux-3.6/include/linux/shmem_fs.h 2012-07-22 23:39:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/shmem_fs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -8,6 +8,9 @@
-
- /* inode in-kernel data */
-
-+#define TMPFS_SUPER_MAGIC 0x01021994
-+
-+
- struct shmem_inode_info {
- spinlock_t lock;
- unsigned long flags;
-diff -NurpP --minimal linux-3.6/include/linux/stat.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/stat.h
---- linux-3.6/include/linux/stat.h 2012-07-22 23:39:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/stat.h 2012-10-04 18:47:00.000000000 +0200
-@@ -67,6 +67,7 @@ struct kstat {
- unsigned int nlink;
- kuid_t uid;
- kgid_t gid;
-+ tag_t tag;
- dev_t rdev;
- loff_t size;
- struct timespec atime;
-diff -NurpP --minimal linux-3.6/include/linux/sunrpc/auth.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sunrpc/auth.h
---- linux-3.6/include/linux/sunrpc/auth.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sunrpc/auth.h 2012-10-04 18:47:00.000000000 +0200
-@@ -25,6 +25,7 @@
- struct auth_cred {
- uid_t uid;
- gid_t gid;
-+ tag_t tag;
- struct group_info *group_info;
- const char *principal;
- unsigned char machine_cred : 1;
-diff -NurpP --minimal linux-3.6/include/linux/sunrpc/clnt.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sunrpc/clnt.h
---- linux-3.6/include/linux/sunrpc/clnt.h 2012-05-21 18:07:32.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sunrpc/clnt.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/sysctl.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sysctl.h
---- linux-3.6/include/linux/sysctl.h 2012-05-21 18:07:32.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sysctl.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/sysfs.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sysfs.h
---- linux-3.6/include/linux/sysfs.h 2012-07-22 23:39:44.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/sysfs.h 2012-10-04 18:47:00.000000000 +0200
-@@ -19,6 +19,8 @@
- #include <linux/kobject_ns.h>
- #include <linux/atomic.h>
-
-+#define SYSFS_SUPER_MAGIC 0x62656572
-+
- struct kobject;
- struct module;
- enum kobj_ns_type;
-diff -NurpP --minimal linux-3.6/include/linux/time.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/time.h
---- linux-3.6/include/linux/time.h 2012-10-04 15:27:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/time.h 2012-10-04 18:47:00.000000000 +0200
-@@ -280,6 +280,8 @@ static __always_inline void timespec_add
- a->tv_nsec = ns;
- }
-
-+#include <linux/vs_time.h>
-+
- #endif /* __KERNEL__ */
-
- /*
-diff -NurpP --minimal linux-3.6/include/linux/types.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/types.h
---- linux-3.6/include/linux/types.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/types.h 2012-10-04 18:47:00.000000000 +0200
-@@ -41,6 +41,9 @@ 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-3.6/include/linux/utsname.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/utsname.h
---- linux-3.6/include/linux/utsname.h 2012-01-09 16:14:59.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/utsname.h 2012-10-04 18:47:00.000000000 +0200
-@@ -62,7 +62,8 @@ 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)
-@@ -79,12 +80,13 @@ 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-3.6/include/linux/vroot.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vroot.h
---- linux-3.6/include/linux/vroot.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vroot.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_base.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_base.h
---- linux-3.6/include/linux/vs_base.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_base.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_context.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_context.h
---- linux-3.6/include/linux/vs_context.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_context.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_cowbl.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_cowbl.h
---- linux-3.6/include/linux/vs_cowbl.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_cowbl.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_cvirt.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_cvirt.h
---- linux-3.6/include/linux/vs_cvirt.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_cvirt.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_device.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_device.h
---- linux-3.6/include/linux/vs_device.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_device.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_dlimit.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_dlimit.h
---- linux-3.6/include/linux/vs_dlimit.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_dlimit.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_inet.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_inet.h
---- linux-3.6/include/linux/vs_inet.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_inet.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_inet6.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_inet6.h
---- linux-3.6/include/linux/vs_inet6.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_inet6.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_limit.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_limit.h
---- linux-3.6/include/linux/vs_limit.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_limit.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_network.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_network.h
---- linux-3.6/include/linux/vs_network.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_network.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_pid.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_pid.h
---- linux-3.6/include/linux/vs_pid.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_pid.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_sched.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_sched.h
---- linux-3.6/include/linux/vs_sched.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_sched.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_socket.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_socket.h
---- linux-3.6/include/linux/vs_socket.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_socket.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_tag.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_tag.h
---- linux-3.6/include/linux/vs_tag.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_tag.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vs_time.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_time.h
---- linux-3.6/include/linux/vs_time.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vs_time.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/Kbuild linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/Kbuild
---- linux-3.6/include/linux/vserver/Kbuild 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/Kbuild 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/base.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/base.h
---- linux-3.6/include/linux/vserver/base.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/base.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cacct.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct.h
---- linux-3.6/include/linux/vserver/cacct.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cacct_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_cmd.h
---- linux-3.6/include/linux/vserver/cacct_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cacct_def.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_def.h
---- linux-3.6/include/linux/vserver/cacct_def.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_def.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cacct_int.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_int.h
---- linux-3.6/include/linux/vserver/cacct_int.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cacct_int.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/check.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/check.h
---- linux-3.6/include/linux/vserver/check.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/check.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/context.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/context.h
---- linux-3.6/include/linux/vserver/context.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/context.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/context_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/context_cmd.h
---- linux-3.6/include/linux/vserver/context_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/context_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cvirt.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt.h
---- linux-3.6/include/linux/vserver/cvirt.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt.h 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,22 @@
-+#ifndef _VX_CVIRT_H
-+#define _VX_CVIRT_H
-+
-+
-+#ifdef __KERNEL__
-+
-+struct timespec;
-+
-+void vx_vsi_boottime(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-3.6/include/linux/vserver/cvirt_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt_cmd.h
---- linux-3.6/include/linux/vserver/cvirt_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/cvirt_def.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt_def.h
---- linux-3.6/include/linux/vserver/cvirt_def.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/cvirt_def.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/debug.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/debug.h
---- linux-3.6/include/linux/vserver/debug.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/debug.h 2012-10-04 18:47:00.000000000 +0200
-@@ -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-3.6/include/linux/vserver/debug_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/debug_cmd.h
---- linux-3.6/include/linux/vserver/debug_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/debug_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/device.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device.h
---- linux-3.6/include/linux/vserver/device.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/device_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device_cmd.h
---- linux-3.6/include/linux/vserver/device_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/device_def.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device_def.h
---- linux-3.6/include/linux/vserver/device_def.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/device_def.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/dlimit.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/dlimit.h
---- linux-3.6/include/linux/vserver/dlimit.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/dlimit.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/dlimit_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/dlimit_cmd.h
---- linux-3.6/include/linux/vserver/dlimit_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/dlimit_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/global.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/global.h
---- linux-3.6/include/linux/vserver/global.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/global.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/history.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/history.h
---- linux-3.6/include/linux/vserver/history.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/history.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/inode.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/inode.h
---- linux-3.6/include/linux/vserver/inode.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/inode.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/inode_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/inode_cmd.h
---- linux-3.6/include/linux/vserver/inode_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/inode_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/limit.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit.h
---- linux-3.6/include/linux/vserver/limit.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/limit_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_cmd.h
---- linux-3.6/include/linux/vserver/limit_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/limit_def.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_def.h
---- linux-3.6/include/linux/vserver/limit_def.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_def.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/limit_int.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_int.h
---- linux-3.6/include/linux/vserver/limit_int.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/limit_int.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/monitor.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/monitor.h
---- linux-3.6/include/linux/vserver/monitor.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/monitor.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/network.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/network.h
---- linux-3.6/include/linux/vserver/network.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/network.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/network_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/network_cmd.h
---- linux-3.6/include/linux/vserver/network_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/network_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/percpu.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/percpu.h
---- linux-3.6/include/linux/vserver/percpu.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/percpu.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/pid.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/pid.h
---- linux-3.6/include/linux/vserver/pid.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/pid.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/sched.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched.h
---- linux-3.6/include/linux/vserver/sched.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/sched_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched_cmd.h
---- linux-3.6/include/linux/vserver/sched_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/sched_def.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched_def.h
---- linux-3.6/include/linux/vserver/sched_def.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/sched_def.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/signal.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/signal.h
---- linux-3.6/include/linux/vserver/signal.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/signal.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/signal_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/signal_cmd.h
---- linux-3.6/include/linux/vserver/signal_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/signal_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/space.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/space.h
---- linux-3.6/include/linux/vserver/space.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/space.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/space_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/space_cmd.h
---- linux-3.6/include/linux/vserver/space_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/space_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/switch.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/switch.h
---- linux-3.6/include/linux/vserver/switch.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/switch.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/tag.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/tag.h
---- linux-3.6/include/linux/vserver/tag.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/tag.h 2012-10-04 18:47:00.000000000 +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-3.6/include/linux/vserver/tag_cmd.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/tag_cmd.h
---- linux-3.6/include/linux/vserver/tag_cmd.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/linux/vserver/tag_cmd.h 2012-10-04 18:47:00.000000000 +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-3.6/include/net/addrconf.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/addrconf.h
---- linux-3.6/include/net/addrconf.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/addrconf.h 2012-10-04 18:47:00.000000000 +0200
-@@ -81,7 +81,8 @@ 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-3.6/include/net/af_unix.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/af_unix.h
---- linux-3.6/include/net/af_unix.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/af_unix.h 2012-10-04 18:47:00.000000000 +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-3.6/include/net/inet_timewait_sock.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/inet_timewait_sock.h
---- linux-3.6/include/net/inet_timewait_sock.h 2012-03-19 19:47:29.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/inet_timewait_sock.h 2012-10-04 18:47:00.000000000 +0200
-@@ -112,6 +112,10 @@ 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-3.6/include/net/ip6_route.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/ip6_route.h
---- linux-3.6/include/net/ip6_route.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/ip6_route.h 2012-10-04 18:47:00.000000000 +0200
-@@ -97,7 +97,8 @@ 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-3.6/include/net/route.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/route.h
---- linux-3.6/include/net/route.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/route.h 2012-10-04 18:47:00.000000000 +0200
-@@ -203,6 +203,9 @@ 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];
-@@ -252,6 +255,9 @@ 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,
-@@ -260,11 +266,25 @@ 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-3.6/include/net/sock.h linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/sock.h
---- linux-3.6/include/net/sock.h 2012-10-04 15:27:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/include/net/sock.h 2012-10-04 18:47:00.000000000 +0200
-@@ -171,6 +171,10 @@ 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()
-@@ -284,6 +288,10 @@ 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-3.6/init/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/init/Kconfig
---- linux-3.6/init/Kconfig 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/init/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -624,6 +624,7 @@ 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
-@@ -889,6 +890,7 @@ config USER_NS
- bool "User namespace (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- depends on UIDGID_CONVERTED
-+ depends on VSERVER_DISABLED
- select UIDGID_STRICT_TYPE_CHECKS
-
- default n
-diff -NurpP --minimal linux-3.6/init/main.c linux-3.6-vs2.3.4.3-noxfs-nocow/init/main.c
---- linux-3.6/init/main.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/init/main.c 2012-10-04 18:51:41.000000000 +0200
-@@ -69,6 +69,7 @@
- #include <linux/slab.h>
- #include <linux/perf_event.h>
- #include <linux/file.h>
-+#include <linux/vserver/percpu.h>
-
- #include <asm/io.h>
- #include <asm/bugs.h>
-diff -NurpP --minimal linux-3.6/ipc/mqueue.c linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/mqueue.c
---- linux-3.6/ipc/mqueue.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/mqueue.c 2012-10-04 18:47:00.000000000 +0200
-@@ -35,6 +35,8 @@
- #include <linux/ipc_namespace.h>
- #include <linux/user_namespace.h>
- #include <linux/slab.h>
-+#include <linux/vs_context.h>
-+#include <linux/vs_limit.h>
-
- #include <net/sock.h>
- #include "util.h"
-@@ -76,6 +78,7 @@ struct mqueue_inode_info {
- struct pid* notify_owner;
- struct user_namespace *notify_user_ns;
- struct user_struct *user; /* user who created, for accounting */
-+ struct vx_info *vxi;
- struct sock *notify_sock;
- struct sk_buff *notify_cookie;
-
-@@ -235,6 +238,7 @@ static struct inode *mqueue_get_inode(st
- if (S_ISREG(mode)) {
- struct mqueue_inode_info *info;
- unsigned long mq_bytes, mq_treesize;
-+ struct vx_info *vxi = current_vx_info();
-
- inode->i_fop = &mqueue_file_operations;
- inode->i_size = FILENT_SIZE;
-@@ -248,6 +252,7 @@ static struct inode *mqueue_get_inode(st
- info->notify_user_ns = NULL;
- info->qsize = 0;
- info->user = NULL; /* set when all is ok */
-+ info->vxi = NULL;
- info->msg_tree = RB_ROOT;
- info->node_cache = NULL;
- memset(&info->attr, 0, sizeof(info->attr));
-@@ -281,17 +286,20 @@ 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 > rlimit(RLIMIT_MSGQUEUE)) {
-+ u->mq_bytes + mq_bytes > rlimit(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 */
-@@ -395,8 +403,11 @@ static void mqueue_evict_inode(struct in
-
- 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
-@@ -406,6 +417,7 @@ 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-3.6/ipc/msg.c linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/msg.c
---- linux-3.6/ipc/msg.c 2011-05-22 16:17:59.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/msg.c 2012-10-04 18:47:00.000000000 +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-3.6/ipc/namespace.c linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/namespace.c
---- linux-3.6/ipc/namespace.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/namespace.c 2012-10-04 18:47:00.000000000 +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 +47,19 @@ 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_ns));
-+ // ns->user_ns = get_user_ns(task_cred_xxx(tsk, 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-3.6/ipc/sem.c linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/sem.c
---- linux-3.6/ipc/sem.c 2012-01-09 16:14:59.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/sem.c 2012-10-04 18:47:00.000000000 +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"
-@@ -306,6 +308,7 @@ 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);
-@@ -321,6 +324,9 @@ 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];
-
-@@ -770,6 +776,9 @@ 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-3.6/ipc/shm.c linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/shm.c
---- linux-3.6/ipc/shm.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/ipc/shm.c 2012-10-04 18:47:00.000000000 +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>
-
-@@ -187,7 +189,12 @@ 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))
-@@ -197,6 +204,7 @@ 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);
- }
-
-@@ -474,11 +482,15 @@ 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;
-
-@@ -533,6 +545,7 @@ 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-3.6/kernel/Makefile linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/Makefile
---- linux-3.6/kernel/Makefile 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/Makefile 2012-10-04 18:47:00.000000000 +0200
-@@ -24,6 +24,7 @@ endif
-
- obj-y += sched/
- obj-y += power/
-+obj-y += vserver/
-
- ifeq ($(CONFIG_CHECKPOINT_RESTORE),y)
- obj-$(CONFIG_X86) += kcmp.o
-diff -NurpP --minimal linux-3.6/kernel/auditsc.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/auditsc.c
---- linux-3.6/kernel/auditsc.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/auditsc.c 2012-10-04 18:47:00.000000000 +0200
-@@ -2309,7 +2309,7 @@ int audit_set_loginuid(uid_t loginuid)
- if (task->loginuid != -1)
- return -EPERM;
- #else /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
-- if (!capable(CAP_AUDIT_CONTROL))
-+ if (!vx_capable(CAP_AUDIT_CONTROL, VXC_AUDIT_CONTROL))
- return -EPERM;
- #endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
-
-diff -NurpP --minimal linux-3.6/kernel/capability.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/capability.c
---- linux-3.6/kernel/capability.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/capability.c 2012-10-04 18:47:00.000000000 +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
-@@ -349,6 +351,8 @@ bool has_ns_capability_noaudit(struct ta
- return (ret == 0);
- }
-
-+#include <linux/vserver/base.h>
-+
- /**
- * has_capability_noaudit - Does a task have a capability (unaudited) in the
- * initial user ns
-diff -NurpP --minimal linux-3.6/kernel/compat.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/compat.c
---- linux-3.6/kernel/compat.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/compat.c 2012-10-04 18:47:00.000000000 +0200
-@@ -1054,7 +1054,7 @@ asmlinkage long compat_sys_stime(compat_
- if (err)
- return err;
-
-- do_settimeofday(&tv);
-+ vx_settimeofday(&tv);
- return 0;
- }
-
-diff -NurpP --minimal linux-3.6/kernel/cred.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/cred.c
---- linux-3.6/kernel/cred.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/cred.c 2012-10-04 18:47:00.000000000 +0200
-@@ -70,31 +70,6 @@ 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
- */
-@@ -284,21 +259,16 @@ 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);
-@@ -326,6 +296,13 @@ 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-3.6/kernel/exit.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/exit.c
---- linux-3.6/kernel/exit.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/exit.c 2012-10-04 18:47:00.000000000 +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();
- }
- }
- }
-@@ -1018,6 +1024,9 @@ void do_exit(long code)
- */
- ptrace_put_breakpoints(tsk);
-
-+ /* needs to stay before exit_notify() */
-+ exit_vx_info_early(tsk, code);
-+
- exit_notify(tsk, group_dead);
- #ifdef CONFIG_NUMA
- task_lock(tsk);
-@@ -1068,10 +1077,15 @@ void do_exit(long code)
- smp_mb();
- raw_spin_unlock_wait(&tsk->pi_lock);
-
-+ /* needs to stay after exit_notify() */
-+ exit_vx_info(tsk, code);
-+ exit_nx_info(tsk);
-+
- /* causes final put_task_struct in finish_task_switch(). */
- tsk->state = TASK_DEAD;
- tsk->flags |= PF_NOFREEZE; /* tell freezer to ignore us */
- schedule();
-+ printk("bad task: %p [%lx]\n", current, current->state);
- BUG();
- /* Avoid "noreturn function does return". */
- for (;;)
-diff -NurpP --minimal linux-3.6/kernel/fork.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/fork.c
---- linux-3.6/kernel/fork.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/fork.c 2012-10-04 18:47:00.000000000 +0200
-@@ -70,6 +70,9 @@
- #include <linux/khugepaged.h>
- #include <linux/signalfd.h>
- #include <linux/uprobes.h>
-+#include <linux/vs_context.h>
-+#include <linux/vs_network.h>
-+#include <linux/vs_limit.h>
-
- #include <asm/pgtable.h>
- #include <asm/pgalloc.h>
-@@ -210,6 +213,8 @@ void free_task(struct task_struct *tsk)
- arch_release_thread_info(tsk->stack);
- 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);
- put_seccomp_filter(tsk);
- arch_release_task_struct(tsk);
-@@ -541,6 +546,7 @@ 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;
- }
-
-@@ -593,6 +599,7 @@ void __mmdrop(struct mm_struct *mm)
- destroy_context(mm);
- mmu_notifier_mm_destroy(mm);
- check_mm(mm);
-+ clr_vx_info(&mm->mm_vx_info);
- free_mm(mm);
- }
- EXPORT_SYMBOL_GPL(__mmdrop);
-@@ -834,6 +841,7 @@ 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);
-
- #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-@@ -874,6 +882,7 @@ 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;
-@@ -1157,6 +1166,8 @@ 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);
-@@ -1204,7 +1215,12 @@ 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) &&
-@@ -1483,6 +1499,18 @@ 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-3.6/kernel/kthread.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/kthread.c
---- linux-3.6/kernel/kthread.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/kthread.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/nsproxy.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/nsproxy.c
---- linux-3.6/kernel/nsproxy.c 2012-01-09 16:15:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/nsproxy.c 2012-10-04 18:47:00.000000000 +0200
-@@ -20,11 +20,14 @@
- #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>
- #include <linux/file.h>
- #include <linux/syscalls.h>
-+#include "../fs/mount.h"
-
- static struct kmem_cache *nsproxy_cachep;
-
-@@ -46,8 +49,11 @@ 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 +62,11 @@ 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 +75,31 @@ 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 +124,40 @@ 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_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 +165,12 @@ 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 +180,7 @@ 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 +207,9 @@ 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 +223,9 @@ 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 +238,15 @@ 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-3.6/kernel/pid.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/pid.c
---- linux-3.6/kernel/pid.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/pid.c 2012-10-04 18:47:00.000000000 +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)
-@@ -344,7 +345,7 @@ 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);
-
-@@ -404,6 +405,9 @@ 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]),
-@@ -423,7 +427,7 @@ struct task_struct *find_task_by_pid_ns(
- rcu_lockdep_assert(rcu_read_lock_held(),
- "find_task_by_pid_ns() needs rcu_read_lock()"
- " protection");
-- 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)
-@@ -467,7 +471,7 @@ 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;
-@@ -480,6 +484,11 @@ 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-3.6/kernel/pid_namespace.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/pid_namespace.c
---- linux-3.6/kernel/pid_namespace.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/pid_namespace.c 2012-10-04 18:47:00.000000000 +0200
-@@ -16,6 +16,7 @@
- #include <linux/slab.h>
- #include <linux/proc_fs.h>
- #include <linux/reboot.h>
-+#include <linux/vserver/global.h>
-
- #define BITS_PER_PAGE (PAGE_SIZE*8)
-
-@@ -89,6 +90,7 @@ 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);
-
-@@ -120,6 +122,7 @@ 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-3.6/kernel/posix-timers.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/posix-timers.c
---- linux-3.6/kernel/posix-timers.c 2012-01-09 16:15:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/posix-timers.c 2012-10-04 18:47:00.000000000 +0200
-@@ -47,6 +47,7 @@
- #include <linux/wait.h>
- #include <linux/workqueue.h>
- #include <linux/export.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-3.6/kernel/printk.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/printk.c
---- linux-3.6/kernel/printk.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/printk.c 2012-10-04 18:47:00.000000000 +0200
-@@ -42,6 +42,7 @@
- #include <linux/notifier.h>
- #include <linux/rculist.h>
- #include <linux/poll.h>
-+#include <linux/vs_cvirt.h>
-
- #include <asm/uaccess.h>
-
-@@ -818,7 +819,7 @@ 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)) {
-@@ -1111,12 +1112,9 @@ 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;
-@@ -1127,6 +1125,16 @@ 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,
- syslog_seq != log_next_seq);
- if (error)
-@@ -1139,16 +1147,6 @@ 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;
-- }
- error = syslog_print_all(buf, len, clear);
- break;
- /* Clear ring buffer */
-diff -NurpP --minimal linux-3.6/kernel/ptrace.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/ptrace.c
---- linux-3.6/kernel/ptrace.c 2012-07-22 23:39:46.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/ptrace.c 2012-10-04 18:47:00.000000000 +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>
- #include <linux/cn_proc.h>
-
-@@ -216,6 +217,11 @@ ok:
- dumpable = get_dumpable(task->mm);
- if (!dumpable && !ptrace_has_cap(task_user_ns(task), mode))
- return -EPERM;
-+ if (!vx_check(task->xid, VS_ADMIN_P|VS_WATCH_P|VS_IDENT))
-+ return -EPERM;
-+ if (!vx_check(task->xid, VS_IDENT) &&
-+ !task_vx_flags(task, VXF_STATE_ADMIN, 0))
-+ return -EACCES;
-
- return security_ptrace_access_check(task, mode);
- }
-diff -NurpP --minimal linux-3.6/kernel/sched/core.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sched/core.c
---- linux-3.6/kernel/sched/core.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sched/core.c 2012-10-04 18:47:00.000000000 +0200
-@@ -72,6 +72,8 @@
- #include <linux/slab.h>
- #include <linux/init_task.h>
- #include <linux/binfmts.h>
-+#include <linux/vs_sched.h>
-+#include <linux/vs_cvirt.h>
-
- #include <asm/switch_to.h>
- #include <asm/tlb.h>
-@@ -2223,9 +2225,17 @@ EXPORT_SYMBOL(avenrun); /* should be rem
- */
- 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;
-+ }
- }
-
- static long calc_load_fold_active(struct rq *this_rq)
-@@ -2854,14 +2864,17 @@ static inline void task_group_account_fi
- void account_user_time(struct task_struct *p, cputime_t cputime,
- cputime_t cputime_scaled)
- {
-+ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
-+ int nice = (TASK_NICE(p) > 0);
- int index;
-
- /* Add user time to process. */
- p->utime += cputime;
- p->utimescaled += cputime_scaled;
-+ vx_account_user(vxi, cputime, nice);
- account_group_user_time(p, cputime);
-
-- index = (TASK_NICE(p) > 0) ? CPUTIME_NICE : CPUTIME_USER;
-+ index = (nice) ? CPUTIME_NICE : CPUTIME_USER;
-
- /* Add user time to cpustat. */
- task_group_account_field(p, index, (__force u64) cputime);
-@@ -2908,9 +2921,12 @@ static inline
- void __account_system_time(struct task_struct *p, cputime_t cputime,
- cputime_t cputime_scaled, int index)
- {
-+ struct vx_info *vxi = p->vx_info; /* p is _always_ current */
-+
- /* Add system time to process. */
- p->stime += cputime;
- 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. */
-@@ -4137,7 +4153,7 @@ 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-3.6/kernel/sched/fair.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sched/fair.c
---- linux-3.6/kernel/sched/fair.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sched/fair.c 2012-10-04 18:47:00.000000000 +0200
-@@ -26,6 +26,7 @@
- #include <linux/slab.h>
- #include <linux/profile.h>
- #include <linux/interrupt.h>
-+#include <linux/vs_cvirt.h>
-
- #include <trace/events/sched.h>
-
-@@ -1111,6 +1112,8 @@ 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);
- check_enqueue_throttle(cfs_rq);
-@@ -1191,6 +1194,8 @@ 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-3.6/kernel/signal.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/signal.c
---- linux-3.6/kernel/signal.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/signal.c 2012-10-04 18:47:00.000000000 +0200
-@@ -30,6 +30,8 @@
- #include <linux/nsproxy.h>
- #include <linux/user_namespace.h>
- #include <linux/uprobes.h>
-+#include <linux/vs_context.h>
-+#include <linux/vs_pid.h>
- #define CREATE_TRACE_POINTS
- #include <trace/events/signal.h>
-
-@@ -790,9 +792,18 @@ 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;
-
-@@ -816,6 +827,20 @@ 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);
- }
-
-@@ -1351,7 +1376,7 @@ 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))
- /*
-@@ -1399,7 +1424,7 @@ int kill_pid_info_as_cred(int sig, struc
-
- 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;
- }
-@@ -1451,8 +1476,10 @@ 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)
-@@ -2317,6 +2344,11 @@ 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-3.6/kernel/softirq.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/softirq.c
---- linux-3.6/kernel/softirq.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/softirq.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/sys.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sys.c
---- linux-3.6/kernel/sys.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sys.c 2012-10-04 18:47:00.000000000 +0200
-@@ -47,6 +47,7 @@
- #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? */
-@@ -154,7 +155,10 @@ 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;
-@@ -270,6 +276,8 @@ 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;
-@@ -421,6 +429,8 @@ 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
-@@ -462,6 +472,9 @@ 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:
-@@ -1367,7 +1380,8 @@ 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)
-@@ -1418,7 +1432,8 @@ 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;
-@@ -1537,7 +1552,7 @@ 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,
-@@ -1590,7 +1605,8 @@ static int check_prlimit_permission(stru
- gid_eq(cred->gid, tcred->sgid) &&
- gid_eq(cred->gid, tcred->gid))
- return 0;
-- if (ns_capable(tcred->user_ns, CAP_SYS_RESOURCE))
-+ if (vx_ns_capable(tcred->user_ns,
-+ CAP_SYS_RESOURCE, VXC_SET_RLIMIT))
- return 0;
-
- return -EPERM;
-diff -NurpP --minimal linux-3.6/kernel/sysctl.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sysctl.c
---- linux-3.6/kernel/sysctl.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sysctl.c 2012-10-04 18:47:00.000000000 +0200
-@@ -82,6 +82,7 @@
- #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-3.6/kernel/sysctl_binary.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sysctl_binary.c
---- linux-3.6/kernel/sysctl_binary.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/sysctl_binary.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/time/timekeeping.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/time/timekeeping.c
---- linux-3.6/kernel/time/timekeeping.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/time/timekeeping.c 2012-10-04 18:47:00.000000000 +0200
-@@ -309,6 +309,7 @@ void getnstimeofday(struct timespec *ts)
-
- ts->tv_nsec = 0;
- timespec_add_ns(ts, nsecs);
-+ vx_adjust_timespec(ts);
- }
- EXPORT_SYMBOL(getnstimeofday);
-
-diff -NurpP --minimal linux-3.6/kernel/time.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/time.c
---- linux-3.6/kernel/time.c 2012-05-21 18:07:34.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/time.c 2012-10-04 18:47:00.000000000 +0200
-@@ -92,7 +92,7 @@ SYSCALL_DEFINE1(stime, time_t __user *,
- if (err)
- return err;
-
-- do_settimeofday(&tv);
-+ vx_settimeofday(&tv);
- return 0;
- }
-
-@@ -172,7 +172,7 @@ int do_sys_settimeofday(const struct tim
- }
- }
- if (tv)
-- return do_settimeofday(tv);
-+ return vx_settimeofday(tv);
- return 0;
- }
-
-diff -NurpP --minimal linux-3.6/kernel/timer.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/timer.c
---- linux-3.6/kernel/timer.c 2012-10-04 15:27:48.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/timer.c 2012-10-09 14:02:12.000000000 +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>
-diff -NurpP --minimal linux-3.6/kernel/user_namespace.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/user_namespace.c
---- linux-3.6/kernel/user_namespace.c 2012-07-22 23:39:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/user_namespace.c 2012-10-04 18:47:00.000000000 +0200
-@@ -19,6 +19,7 @@
- #include <linux/fs.h>
- #include <linux/uaccess.h>
- #include <linux/ctype.h>
-+#include <linux/vserver/global.h>
-
- static struct kmem_cache *user_ns_cachep __read_mostly;
-
-@@ -52,6 +53,7 @@ int create_user_ns(struct cred *new)
- return -ENOMEM;
-
- kref_init(&ns->kref);
-+ atomic_inc(&vs_global_user_ns);
- ns->parent = parent_ns;
- ns->owner = owner;
- ns->group = group;
-@@ -84,6 +86,9 @@ void free_user_ns(struct kref *kref)
-
- parent = ns->parent;
- kmem_cache_free(user_ns_cachep, ns);
-+
-+ /* FIXME: maybe move into destroyer? */
-+ atomic_dec(&vs_global_user_ns);
- put_user_ns(parent);
- }
- EXPORT_SYMBOL(free_user_ns);
-diff -NurpP --minimal linux-3.6/kernel/utsname.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/utsname.c
---- linux-3.6/kernel/utsname.c 2012-07-22 23:39:47.000000000 +0200
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/utsname.c 2012-10-04 18:47:00.000000000 +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_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-3.6/kernel/vserver/Kconfig linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/Kconfig
---- linux-3.6/kernel/vserver/Kconfig 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/Kconfig 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,224 @@
-+#
-+# 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.
-+
-+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-3.6/kernel/vserver/Makefile linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/Makefile
---- linux-3.6/kernel/vserver/Makefile 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/Makefile 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/cacct.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct.c
---- linux-3.6/kernel/vserver/cacct.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/cacct_init.h linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct_init.h
---- linux-3.6/kernel/vserver/cacct_init.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct_init.h 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/cacct_proc.h linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct_proc.h
---- linux-3.6/kernel/vserver/cacct_proc.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cacct_proc.h 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/context.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/context.c
---- linux-3.6/kernel/vserver/context.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/context.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,1119 @@
-+/*
-+ * 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;
-+ 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;
-+ struct vx_info *reaper_vxi;
-+
-+ 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;
-+
-+ reaper_vxi = task_get_vx_info(p);
-+ if (reaper_vxi && reaper_vxi != vxi) {
-+ vxwprintk(1,
-+ "Unsuitable reaper [" VS_Q("%s") ",%u:#%u] "
-+ "for [xid #%u]",
-+ p->comm, p->pid, p->xid, vx_current_xid());
-+ goto out;
-+ }
-+
-+ /* set new child reaper */
-+ get_task_struct(p);
-+ vxi->vx_reaper = p;
-+ put_task_struct(old_reaper);
-+out:
-+ put_vx_info(reaper_vxi);
-+ 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-3.6/kernel/vserver/cvirt.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt.c
---- linux-3.6/kernel/vserver/cvirt.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,313 @@
-+/*
-+ * 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_boottime(struct timespec *boottime)
-+{
-+ struct vx_info *vxi = current_vx_info();
-+
-+ set_normalized_timespec(boottime,
-+ boottime->tv_sec + vxi->cvirt.bias_uptime.tv_sec,
-+ boottime->tv_nsec + vxi->cvirt.bias_uptime.tv_nsec);
-+ return;
-+}
-+
-+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-3.6/kernel/vserver/cvirt_init.h linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt_init.h
---- linux-3.6/kernel/vserver/cvirt_init.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt_init.h 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/cvirt_proc.h linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt_proc.h
---- linux-3.6/kernel/vserver/cvirt_proc.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/cvirt_proc.h 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,123 @@
-+#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>
-+
-+extern int vx_info_mnt_namespace(struct mnt_namespace *, char *);
-+
-+static inline
-+int vx_info_proc_nsproxy(struct nsproxy *nsproxy, char *buffer)
-+{
-+ struct mnt_namespace *ns;
-+ struct uts_namespace *uts;
-+ struct ipc_namespace *ipc;
-+ 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;
-+
-+ length += vx_info_mnt_namespace(ns, buffer + length);
-+
-+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-3.6/kernel/vserver/debug.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/debug.c
---- linux-3.6/kernel/vserver/debug.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/debug.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/device.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/device.c
---- linux-3.6/kernel/vserver/device.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/device.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/dlimit.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/dlimit.c
---- linux-3.6/kernel/vserver/dlimit.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/dlimit.c 2012-10-04 18:47:00.000000000 +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-3.6/kernel/vserver/helper.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/helper.c
---- linux-3.6/kernel/vserver/helper.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/helper.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,229 @@
-+/*
-+ * 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 vshelper_init(struct subprocess_info *info, struct cred *new_cred)
-+{
-+ current->flags &= ~PF_THREAD_BOUND;
-+ return 0;
-+}
-+
-+static int do_vshelper(char *name, char *argv[], char *envp[], int sync)
-+{
-+ int ret;
-+
-+ if ((ret = call_usermodehelper_fns(name, argv, envp,
-+ sync ? UMH_WAIT_PROC : UMH_WAIT_EXEC,
-+ vshelper_init, NULL, NULL))) {
-+ 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), "%d", vxi->vx_id);
-+
-+ snprintf(cmd_buf, sizeof(cmd_buf), "VS_CMD=%08x", cmd);
-+ snprintf(uid_buf, sizeof(uid_buf), "VS_UID=%d", current_uid());
-+ snprintf(pid_buf, sizeof(pid_buf), "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), "%d", vxi->vx_id);
-+ snprintf(cmd_buf, sizeof(cmd_buf), "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), "%d", nxi->nx_id);
-+ snprintf(cmd_buf, sizeof(cmd_buf), "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-3.6/kernel/vserver/history.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/history.c
---- linux-3.6/kernel/vserver/history.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/history.c 2012-10-04 18:47:00.000000000 +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;
-+}
-+
-+#endif /* CONFIG_COMPAT */
-+
-diff -NurpP --minimal linux-3.6/kernel/vserver/inet.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/inet.c
---- linux-3.6/kernel/vserver/inet.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/inet.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,226 @@
-+
-+#include <linux/in.h>
-+#include <linux/inetdevice.h>
-+#include <linux/export.h>
-+#include <linux/vs_inet.h>
-+#include <linux/vs_inet6.h>
-+#include <linux/vserver/debug.h>
-+#include <net/route.h>
-+#include <net/addrconf.h>
-+
-+
-+int nx_v4_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
-+{
-+ int ret = 0;
-+
-+ if (!nxi1 || !nxi2 || nxi1 == nxi2)
-+ ret = 1;
-+ else {
-+ struct nx_addr_v4 *ptr;
-+
-+ for (ptr = &nxi1->v4; ptr; ptr = ptr->next) {
-+ if (v4_nx_addr_in_nx_info(nxi2, ptr, -1)) {
-+ ret = 1;
-+ break;
-+ }
-+ }
-+ }
-+
-+ vxdprintk(VXD_CBIT(net, 2),
-+ "nx_v4_addr_conflict(%p,%p): %d",
-+ nxi1, nxi2, ret);
-+
-+ return ret;
-+}
-+
-+
-+#ifdef CONFIG_IPV6
-+
-+int nx_v6_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
-+{
-+ int ret = 0;
-+
-+ if (!nxi1 || !nxi2 || nxi1 == nxi2)
-+ ret = 1;
-+ else {
-+ struct nx_addr_v6 *ptr;
-+
-+ for (ptr = &nxi1->v6; ptr; ptr = ptr->next) {
-+ if (v6_nx_addr_in_nx_info(nxi2, ptr, -1)) {
-+ ret = 1;
-+ break;
-+ }
-+ }
-+ }
-+
-+ vxdprintk(VXD_CBIT(net, 2),
-+ "nx_v6_addr_conflict(%p,%p): %d",
-+ nxi1, nxi2, ret);
-+
-+ return ret;
-+}
-+
-+#endif
-+
-+int v4_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
-+{
-+ struct in_device *in_dev;
-+ struct in_ifaddr **ifap;
-+ struct in_ifaddr *ifa;
-+ int ret = 0;
-+
-+ if (!dev)
-+ goto out;
-+ in_dev = in_dev_get(dev);
-+ if (!in_dev)
-+ goto out;
-+
-+ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
-+ ifap = &ifa->ifa_next) {
-+ if (v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW)) {
-+ ret = 1;
-+ break;
-+ }
-+ }
-+ in_dev_put(in_dev);
-+out:
-+ return ret;
-+}
-+
-+
-+#ifdef CONFIG_IPV6
-+
-+int v6_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
-+{
-+ struct inet6_dev *in_dev;
-+ struct inet6_ifaddr *ifa;
-+ int ret = 0;
-+
-+ if (!dev)
-+ goto out;
-+ in_dev = in6_dev_get(dev);
-+ if (!in_dev)
-+ goto out;
-+
-+ // for (ifap = &in_dev->addr_list; (ifa = *ifap) != NULL;
-+ list_for_each_entry(ifa, &in_dev->addr_list, if_list) {
-+ if (v6_addr_in_nx_info(nxi, &ifa->addr, -1)) {
-+ ret = 1;
-+ break;
-+ }
-+ }
-+ in6_dev_put(in_dev);
-+out:
-+ return ret;
-+}
-+
-+#endif
-+
-+int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
-+{
-+ int ret = 1;
-+
-+ if (!nxi)
-+ goto out;
-+ if (nxi->v4.type && v4_dev_in_nx_info(dev, nxi))
-+ goto out;
-+#ifdef CONFIG_IPV6
-+ ret = 2;
-+ if (nxi->v6.type && v6_dev_in_nx_info(dev, nxi))
-+ goto out;
-+#endif
-+ ret = 0;
-+out:
-+ vxdprintk(VXD_CBIT(net, 3),
-+ "dev_in_nx_info(%p,%p[#%d]) = %d",
-+ dev, nxi, nxi ? nxi->nx_id : 0, ret);
-+ return ret;
-+}
-+
-+struct rtable *ip_v4_find_src(struct net *net, struct nx_info *nxi,
-+ struct flowi4 *fl4)
-+{
-+ struct rtable *rt;
-+
-+ if (!nxi)
-+ return NULL;
-+
-+ /* FIXME: handle lback only case */
-+ if (!NX_IPV4(nxi))
-+ return ERR_PTR(-EPERM);
-+
-+ vxdprintk(VXD_CBIT(net, 4),
-+ "ip_v4_find_src(%p[#%u]) " NIPQUAD_FMT " -> " NIPQUAD_FMT,
-+ nxi, nxi ? nxi->nx_id : 0,
-+ NIPQUAD(fl4->saddr), NIPQUAD(fl4->daddr));
-+
-+ /* single IP is unconditional */
-+ if (nx_info_flags(nxi, NXF_SINGLE_IP, 0) &&
-+ (fl4->saddr == INADDR_ANY))
-+ fl4->saddr = nxi->v4.ip[0].s_addr;
-+
-+ if (fl4->saddr == INADDR_ANY) {
-+ struct nx_addr_v4 *ptr;
-+ __be32 found = 0;
-+
-+ rt = __ip_route_output_key(net, fl4);
-+ if (!IS_ERR(rt)) {
-+ found = fl4->saddr;
-+ ip_rt_put(rt);
-+ vxdprintk(VXD_CBIT(net, 4),
-+ "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
-+ nxi, nxi ? nxi->nx_id : 0, fl4->flowi4_oif, NIPQUAD(found));
-+ if (v4_addr_in_nx_info(nxi, found, NXA_MASK_BIND))
-+ goto found;
-+ }
-+
-+ for (ptr = &nxi->v4; ptr; ptr = ptr->next) {
-+ __be32 primary = ptr->ip[0].s_addr;
-+ __be32 mask = ptr->mask.s_addr;
-+ __be32 neta = primary & mask;
-+
-+ vxdprintk(VXD_CBIT(net, 4), "ip_v4_find_src(%p[#%u]) chk: "
-+ NIPQUAD_FMT "/" NIPQUAD_FMT "/" NIPQUAD_FMT,
-+ nxi, nxi ? nxi->nx_id : 0, NIPQUAD(primary),
-+ NIPQUAD(mask), NIPQUAD(neta));
-+ if ((found & mask) != neta)
-+ continue;
-+
-+ fl4->saddr = primary;
-+ rt = __ip_route_output_key(net, fl4);
-+ vxdprintk(VXD_CBIT(net, 4),
-+ "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
-+ nxi, nxi ? nxi->nx_id : 0, fl4->flowi4_oif, NIPQUAD(primary));
-+ if (!IS_ERR(rt)) {
-+ found = fl4->saddr;
-+ ip_rt_put(rt);
-+ if (found == primary)
-+ goto found;
-+ }
-+ }
-+ /* still no source ip? */
-+ found = ipv4_is_loopback(fl4->daddr)
-+ ? IPI_LOOPBACK : nxi->v4.ip[0].s_addr;
-+ found:
-+ /* assign src ip to flow */
-+ fl4->saddr = found;
-+
-+ } else {
-+ if (!v4_addr_in_nx_info(nxi, fl4->saddr, NXA_MASK_BIND))
-+ return ERR_PTR(-EPERM);
-+ }
-+
-+ if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0)) {
-+ if (ipv4_is_loopback(fl4->daddr))
-+ fl4->daddr = nxi->v4_lback.s_addr;
-+ if (ipv4_is_loopback(fl4->saddr))
-+ fl4->saddr = nxi->v4_lback.s_addr;
-+ } else if (ipv4_is_loopback(fl4->daddr) &&
-+ !nx_info_flags(nxi, NXF_LBACK_ALLOW, 0))
-+ return ERR_PTR(-EPERM);
-+
-+ return NULL;
-+}
-+
-+EXPORT_SYMBOL_GPL(ip_v4_find_src);
-+
-diff -NurpP --minimal linux-3.6/kernel/vserver/init.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/init.c
---- linux-3.6/kernel/vserver/init.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/init.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,45 @@
-+/*
-+ * linux/kernel/init.c
-+ *
-+ * Virtual Server Init
-+ *
-+ * Copyright (C) 2004-2007 Herbert Ptzl
-+ *
-+ * V0.01 basic structure
-+ *
-+ */
-+
-+#include <linux/init.h>
-+
-+int vserver_register_sysctl(void);
-+void vserver_unregister_sysctl(void);
-+
-+
-+static int __init init_vserver(void)
-+{
-+ int ret = 0;
-+
-+#ifdef CONFIG_VSERVER_DEBUG
-+ vserver_register_sysctl();
-+#endif
-+ return ret;
-+}
-+
-+
-+static void __exit exit_vserver(void)
-+{
-+
-+#ifdef CONFIG_VSERVER_DEBUG
-+ vserver_unregister_sysctl();
-+#endif
-+ return;
-+}
-+
-+/* FIXME: GFP_ZONETYPES gone
-+long vx_slab[GFP_ZONETYPES]; */
-+long vx_area;
-+
-+
-+module_init(init_vserver);
-+module_exit(exit_vserver);
-+
-diff -NurpP --minimal linux-3.6/kernel/vserver/inode.c linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/inode.c
---- linux-3.6/kernel/vserver/inode.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-3.6-vs2.3.4.3-noxfs-nocow/kernel/vserver/inode.c 2012-10-04 18:47:00.000000000 +0200
-@@ -0,0 +1,437 @@
-+/*
-+ * linux/kernel/vserver/inode.c
-+ *
-+ * Virtual Server: File System Support
-+ *
-+ * Copyright (C) 2004-2007 Herbert Ptzl
-+ *
-+ * V0.01 separated from vcontext V0.05
-+ * V0.02 moved to tag (instead of xid)
-+ *
-+ */
-+
-+#include <linux/tty.h>
-+#include <linux/proc_fs.h>
-+#include <linux/devpts_fs.h>
-+#include <linux/fs.h>
-+#include <linux/file.h>
-+#include <linux/mount.h>
-+#include <linux/parser.h>
-+#include <linux/namei.h>
-+#include <linux/vserver/inode.h>
-+#include <linux/vserver/inode_cmd.h>
-+#include <linux/vs_base.h>
-+#include <linux/vs_tag.h>
-+
-+#include <asm/uaccess.h>
-+
-+
-+static int __vc_get_iattr(struct inode *in, uint32_t *tag, uint32_t *flags, uint32_t *mask)
-+{
-+ struct proc_dir_entry *entry;
-+
-+ if (!in || !in->i_sb)
-+ return -ESRCH;
-+
-+ *flags = IATTR_TAG
-+ | (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0)
-+ | (IS_IXUNLINK(in) ? IATTR_IXUNLINK : 0)
-+ | (IS_BARRIER(in) ? IATTR_BARRIER : 0)
-+ | (IS_COW(in) ? IATTR_COW : 0);
-+ *mask = IATTR_IXUNLINK | IATTR_IMMUTABLE | IATTR_COW;
-+
-+ if (S_ISDIR(in->i_mode))
-+ *mask |= IATTR_BARRIER;
-+
-+ if (IS_TAGGED(in)) {
-+ *tag = in->i_tag;
-+ *mask |= IATTR_TAG;
-+ }
-+
-+ switch (in->i_sb->s_magic) {
-+ case PROC_SUPER_MAGIC:
-+ entry = PROC_I(in)->pde;
-+
-+ /* check for specific inodes? */
-+ if (entry)
-+ *mask |= IATTR_FLAGS;
-+ if (entry)
-+ *flags |= (entry->vx_flags & IATTR_FLAGS);
-+ else
-+ *flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS);
-+ break;
-+
-+ case DEVPTS_SUPER_MAGIC:
-+ *tag = in->i_tag;
-+ *mask |= IATTR_TAG;
-+ break;
-+
-+ default:
-+ break;
-+ }
-+ return 0;
-+}
-+
-+int vc_get_iattr(void __user *data)
-+{
-+ struct path path;
-+ struct vcmd_ctx_iattr_v1 vc_data = { .tag = -1 };
-+ int ret;
-+
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ ret = user_lpath(vc_data.name, &path);
-+ if (!ret) {
-+ ret = __vc_get_iattr(path.dentry->d_inode,
-+ &vc_data.tag, &vc_data.flags, &vc_data.mask);
-+ path_put(&path);
-+ }
-+ if (ret)
-+ return ret;
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ ret = -EFAULT;
-+ return ret;
-+}
-+
-+#ifdef CONFIG_COMPAT
-+
-+int vc_get_iattr_x32(void __user *data)
-+{
-+ struct path path;
-+ struct vcmd_ctx_iattr_v1_x32 vc_data = { .tag = -1 };
-+ int ret;
-+
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ ret = user_lpath(compat_ptr(vc_data.name_ptr), &path);
-+ if (!ret) {
-+ ret = __vc_get_iattr(path.dentry->d_inode,
-+ &vc_data.tag, &vc_data.flags, &vc_data.mask);
-+ path_put(&path);
-+ }
-+ if (ret)
-+ return ret;
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ ret = -EFAULT;
-+ return ret;
-+}
-+
-+#endif /* CONFIG_COMPAT */
-+
-+
-+int vc_fget_iattr(uint32_t fd, void __user *data)
-+{
-+ struct file *filp;
-+ struct vcmd_ctx_fiattr_v0 vc_data = { .tag = -1 };
-+ int ret;
-+
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ filp = fget(fd);
-+ if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
-+ return -EBADF;
-+
-+ ret = __vc_get_iattr(filp->f_dentry->d_inode,
-+ &vc_data.tag, &vc_data.flags, &vc_data.mask);
-+
-+ fput(filp);
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ ret = -EFAULT;
-+ return ret;
-+}
-+
-+
-+static int __vc_set_iattr(struct dentry *de, uint32_t *tag, uint32_t *flags, uint32_t *mask)
-+{
-+ struct inode *in = de->d_inode;
-+ int error = 0, is_proc = 0, has_tag = 0;
-+ struct iattr attr = { 0 };
-+
-+ if (!in || !in->i_sb)
-+ return -ESRCH;
-+
-+ is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC);
-+ if ((*mask & IATTR_FLAGS) && !is_proc)
-+ return -EINVAL;
-+
-+ has_tag = IS_TAGGED(in) ||
-+ (in->i_sb->s_magic == DEVPTS_SUPER_MAGIC);
-+ if ((*mask & IATTR_TAG) && !has_tag)
-+ return -EINVAL;
-+
-+ mutex_lock(&in->i_mutex);
-+ if (*mask & IATTR_TAG) {
-+ attr.ia_tag = *tag;
-+ attr.ia_valid |= ATTR_TAG;
-+ }
-+
-+ if (*mask & IATTR_FLAGS) {
-+ struct proc_dir_entry *entry = PROC_I(in)->pde;
-+ unsigned int iflags = PROC_I(in)->vx_flags;
-+
-+ iflags = (iflags & ~(*mask & IATTR_FLAGS))
-+ | (*flags & IATTR_FLAGS);
-+ PROC_I(in)->vx_flags = iflags;
-+ if (entry)
-+ entry->vx_flags = iflags;
-+ }
-+
-+ if (*mask & (IATTR_IMMUTABLE | IATTR_IXUNLINK |
-+ IATTR_BARRIER | IATTR_COW)) {
-+ int iflags = in->i_flags;
-+ int vflags = in->i_vflags;
-+
-+ if (*mask & IATTR_IMMUTABLE) {
-+ if (*flags & IATTR_IMMUTABLE)
-+ iflags |= S_IMMUTABLE;
-+ else
-+ iflags &= ~S_IMMUTABLE;
-+ }
-+ if (*mask & IATTR_IXUNLINK) {
-+ if (*flags & IATTR_IXUNLINK)
-+ iflags |= S_IXUNLINK;
-+ else
-+ iflags &= ~S_IXUNLINK;
-+ }
-+ if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) {
-+ if (*flags & IATTR_BARRIER)
-+ vflags |= V_BARRIER;
-+ else
-+ vflags &= ~V_BARRIER;
-+ }
-+ if (S_ISREG(in->i_mode) && (*mask & IATTR_COW)) {
-+ if (*flags & IATTR_COW)
-+ vflags |= V_COW;
-+ else
-+ vflags &= ~V_COW;
-+ }
-+ if (in->i_op && in->i_op->sync_flags) {
-+ error = in->i_op->sync_flags(in, iflags, vflags);
-+ if (error)
-+ goto out;
-+ }
-+ }
-+
-+ if (attr.ia_valid) {
-+ if (in->i_op && in->i_op->setattr)
-+ error = in->i_op->setattr(de, &attr);
-+ else {
-+ error = inode_change_ok(in, &attr);
-+ if (!error) {
-+ setattr_copy(in, &attr);
-+ mark_inode_dirty(in);
-+ }
-+ }
-+ }
-+
-+out:
-+ mutex_unlock(&in->i_mutex);
-+ return error;
-+}
-+
-+int vc_set_iattr(void __user *data)
-+{
-+ struct path path;
-+ struct vcmd_ctx_iattr_v1 vc_data;
-+ int ret;
-+
-+ if (!capable(CAP_LINUX_IMMUTABLE))
-+ return -EPERM;
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ ret = user_lpath(vc_data.name, &path);
-+ if (!ret) {
-+ ret = __vc_set_iattr(path.dentry,
-+ &vc_data.tag, &vc_data.flags, &vc_data.mask);
-+ path_put(&path);
-+ }
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ ret = -EFAULT;
-+ return ret;
-+}
-+
-+#ifdef CONFIG_COMPAT
-+
-+int vc_set_iattr_x32(void __user *data)
-+{
-+ struct path path;
-+ struct vcmd_ctx_iattr_v1_x32 vc_data;
-+ int ret;
-+
-+ if (!capable(CAP_LINUX_IMMUTABLE))
-+ return -EPERM;
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ ret = user_lpath(compat_ptr(vc_data.name_ptr), &path);
-+ if (!ret) {
-+ ret = __vc_set_iattr(path.dentry,
-+ &vc_data.tag, &vc_data.flags, &vc_data.mask);
-+ path_put(&path);
-+ }
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ ret = -EFAULT;
-+ return ret;
-+}
-+
-+#endif /* CONFIG_COMPAT */
-+
-+int vc_fset_iattr(uint32_t fd, void __user *data)
-+{
-+ struct file *filp;
-+ struct vcmd_ctx_fiattr_v0 vc_data;
-+ int ret;
-+
-+ if (!capable(CAP_LINUX_IMMUTABLE))
-+ return -EPERM;
-+ if (copy_from_user(&vc_data, data, sizeof(vc_data)))
-+ return -EFAULT;
-+
-+ filp = fget(fd);
-+ if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
-+ return -EBADF;
-+
-+ ret = __vc_set_iattr(filp->f_dentry, &vc_data.tag,
-+ &vc_data.flags, &vc_data.mask);
-+
-+ fput(filp);
-+
-+ if (copy_to_user(data, &vc_data, sizeof(vc_data)))
-+ return -EFAULT;
-+ return ret;
-+}
-+
-+
-+enum { Opt_notagcheck, Opt_tag, Opt_notag, Opt_tagid, Opt_err };
-+
-+static match_table_t tokens = {
-+ {Opt_notagcheck, "notagcheck"},
-+#ifdef CONFIG_PROPAGATE
-+ {Opt_notag, "notag"},
-+ {Opt_tag, "tag"},
-+ {Opt_tagid, "tagid=%u"},
-+#endif
-+ {Opt_err, NULL}
-+};
-+
-+
-+static void __dx_parse_remove(char *string, char *opt)
-+{
-+ char *p = strstr(string, opt);
-+ char *q = p;
-+
-+ if (p) {
-+ while (*q != '\0' && *q != ',')
-+ q++;
-+ while (*q)
-+ *p++ = *q++;
-+ while (*p)
-+ *p++ = '\0';
-+ }
-+}
-+
-+int dx_parse_tag(char *string, tag_t *tag, int remove, int *mnt_flags,
-+ unsigned long *flags)
-+{
-+ int set = 0;
-+ substring_t args[MAX_OPT_ARGS];
-+ int token;
-+ char *s, *p, *opts;
-+#if defined(CONFIG_PROPAGATE) || defined(CONFIG_VSERVER_DEBUG)
-+ int option = 0;
-+#endif
-+
-+ if (!string)
-+ return 0;
-+ s = kstrdup(string, GFP_KERNEL | GFP_ATOMIC);
-+ if (!s)
-+ return 0;
-+
-+ opts = s;
-+ while ((p = strsep(&opts, ",")) != NULL) {
-+ token = match_token(p, tokens, args);
-+
-+ switch (token) {