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Slab: Fix memory leak in fallback_alloc()

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The zonelist patches caused the loop that checks for available
objects in permitted zones to not terminate immediately. One object
per zone per allocation may be allocated and then abandoned.

Break the loop when we have successfully allocated one object.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Lameter 2008-06-21 16:46:35 -07:00 committed by Linus Torvalds
parent 62a8efe632
commit 481c5346d0
1 changed files with 4 additions and 1 deletions
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5
mm/slab.c
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@ -3263,9 +3263,12 @@ static void *fallback_alloc(struct kmem_cache *cache, gfp_t flags)
if (cpuset_zone_allowed_hardwall(zone, flags) &&
cache->nodelists[nid] &&
cache->nodelists[nid]->free_objects)
cache->nodelists[nid]->free_objects) {
obj = ____cache_alloc_node(cache,
flags | GFP_THISNODE, nid);
if (obj)
break;
}
}
if (!obj) {