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>
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@ -789,6 +789,7 @@ static inline struct kmem_cache *__find_general_cachep(size_t size,
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*/
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BUG_ON(malloc_sizes[INDEX_AC].cs_cachep == NULL);
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#endif
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WARN_ON_ONCE(size == 0);
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while (size > csizep->cs_size)
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csizep++;
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