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Slab allocators: Cleanup zeroing allocations

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It becomes now easy to support the zeroing allocs with generic inline
functions in slab.h.  Provide inline definitions to allow the continued use of
kzalloc, kmem_cache_zalloc etc but remove other definitions of zeroing
functions from the slab allocators and util.c.

Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2007-07-17 04:03:29 -07:00 • committed by Linus Torvalds
commit 81cda66261
7 changed files with 46 additions and 126 deletions
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17
mm/slab.c
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@ -3589,23 +3589,6 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
}
EXPORT_SYMBOL(kmem_cache_alloc);
/**
* kmem_cache_zalloc - Allocate an object. The memory is set to zero.
* @cache: The cache to allocate from.
* @flags: See kmalloc().
*
* Allocate an object from this cache and set the allocated memory to zero.
* The flags are only relevant if the cache has no available objects.
*/
void *kmem_cache_zalloc(struct kmem_cache *cache, gfp_t flags)
{
void *ret = __cache_alloc(cache, flags, __builtin_return_address(0));
if (ret)
memset(ret, 0, obj_size(cache));
return ret;
}
EXPORT_SYMBOL(kmem_cache_zalloc);
/**
* kmem_ptr_validate - check if an untrusted pointer might
* be a slab entry.