From: Andrew Morton <akpm@linux-foundation.org>

That could make the machine unusable.

Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/slub_def.h |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN include/linux/slub_def.h~slub-allocate-smallest-object-size-if-the-user-asks-for-0-bytes-fix include/linux/slub_def.h
--- a/include/linux/slub_def.h~slub-allocate-smallest-object-size-if-the-user-asks-for-0-bytes-fix
+++ a/include/linux/slub_def.h
@@ -84,7 +84,7 @@ static inline int kmalloc_index(int size
 	 * We should return 0 if size == 0 but we use the smallest object
 	 * here for SLAB legacy reasons.
 	 */
-	WARN_ON(size == 0);
+	WARN_ON_ONCE(size == 0);
 
 	if (size > 64 && size <= 96)
 		return 1;
_