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-rw-r--r--extra/db46/patch.4.6.21.227
1 files changed, 27 insertions, 0 deletions
diff --git a/extra/db46/patch.4.6.21.2 b/extra/db46/patch.4.6.21.2
new file mode 100644
index 0000000000..4e59f18afe
--- /dev/null
+++ b/extra/db46/patch.4.6.21.2
@@ -0,0 +1,27 @@
+*** mp/mp_region.c 2007-05-18 03:18:01.000000000 +1000
+--- mp/mp_region.c 2008-06-24 13:15:56.000000000 +1000
+***************
+*** 249,256 ****
+ mtx_base = htab[0].mtx_hash;
+ }
+
+ if (mtx_base != MUTEX_INVALID)
+! mtx_base += reginfo_off * htab_buckets;
+
+ /* Allocate hash table space and initialize it. */
+ if ((ret = __env_alloc(infop,
+--- 249,262 ----
+ mtx_base = htab[0].mtx_hash;
+ }
+
++ /*
++ * We preallocated all of the mutexes in a block, so for regions after
++ * the first, we skip mutexes in use in earlier regions. Each region
++ * has the same number of buckets and there are two mutexes per hash
++ * bucket (the bucket mutex and the I/O mutex).
++ */
+ if (mtx_base != MUTEX_INVALID)
+! mtx_base += reginfo_off * htab_buckets * 2;
+
+ /* Allocate hash table space and initialize it. */
+ if ((ret = __env_alloc(infop,