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authorRajesh Joseph <rjoseph@redhat.com>2016-11-14 15:40:32 +0530
committerNiels de Vos <ndevos@redhat.com>2016-11-22 04:45:34 -0800
commit277008a3a8583ef10cec9e4182960792e56c5c10 (patch)
treeec73bfa5f5582f474bc20c8a183f57db929f81ab /libglusterfs/src
parent7b80a0f02fa0c27f5f5e89e69f92678145fd6a7f (diff)
libglusterfs:Now mempool is added to ctx pool list under a lock
mempool is added to ctx pool list without any lock. This can cause undefined behaviour in case of multithreaded environment. Fix: modify the list only under ctx->lock Change-Id: I7bdbb3db48a899bb0e41427e149b13c0facaedba Signed-off-by: Rajesh Joseph <rjoseph@redhat.com> BUG: 1394719 Reviewed-on: http://review.gluster.org/15842 NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Poornima G <pgurusid@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
Diffstat (limited to 'libglusterfs/src')
-rw-r--r--libglusterfs/src/mem-pool.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/libglusterfs/src/mem-pool.c b/libglusterfs/src/mem-pool.c
index 78fecec4b0f..88fbdf58319 100644
--- a/libglusterfs/src/mem-pool.c
+++ b/libglusterfs/src/mem-pool.c
@@ -422,7 +422,11 @@ mem_pool_new_fn (unsigned long sizeof_type,
if (!ctx)
goto out;
- list_add (&mem_pool->global_list, &ctx->mempool_list);
+ LOCK (&ctx->lock);
+ {
+ list_add (&mem_pool->global_list, &ctx->mempool_list);
+ }
+ UNLOCK (&ctx->lock);
out:
return mem_pool;