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[PATCH] slab: introduce kmem_cache_zalloc allocator

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Introduce a memory-zeroing variant of kmem_cache_alloc.  The allocator
already exits in XFS and there are potential users for it so this patch
makes the allocator available for the general public.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pekka Enberg
2006-03-25 03:06:42 -08:00
committed by Linus Torvalds
parent 871751e25d
commit a8c0f9a41f
3 changed files with 29 additions and 0 deletions
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10
mm/slob.c
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@@ -294,6 +294,16 @@ void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags)
}
EXPORT_SYMBOL(kmem_cache_alloc);
void *kmem_cache_zalloc(struct kmem_cache *c, gfp_t flags)
{
void *ret = kmem_cache_alloc(c, flags);
if (ret)
memset(ret, 0, c->size);
return ret;
}
EXPORT_SYMBOL(kmem_cache_zalloc);
void kmem_cache_free(struct kmem_cache *c, void *b)
{
if (c->dtor)