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authorChristoph Lameter <clameter@sgi.com>2007-05-16 22:10:53 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-17 05:23:03 -0700
commit0b44f7a5b5078d737b3f5914978aabb761254840 (patch)
tree7d726723f427a3add9a22ac4d34ca236b6f8376a /mm
parent4b6f0750457db1f573eb6226960a432da3be8fe2 (diff)
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slab: warn on zero-length allocations
slub warns on this, and we're working on making kmalloc(0) return NULL. Let's make slab warn as well so our testers detect such callers more rapidly. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/slab.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 1234443..2043102 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -789,6 +789,7 @@ static inline struct kmem_cache *__find_general_cachep(size_t size,
*/
BUG_ON(malloc_sizes[INDEX_AC].cs_cachep == NULL);
#endif
+ WARN_ON_ONCE(size == 0);
while (size > csizep->cs_size)
csizep++;