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mm, sl[aou]b: Extract common code for kmem_cache_create()

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Kmem_cache_create() does a variety of sanity checks but those
vary depending on the allocator. Use the strictest tests and put them into
a slab_common file. Make the tests conditional on CONFIG_DEBUG_VM.

This patch has the effect of adding sanity checks for SLUB and SLOB
under CONFIG_DEBUG_VM and removes the checks in SLAB for !CONFIG_DEBUG_VM.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Christoph Lameter
2012-07-06 15:25:10 -05:00
committed by Pekka Enberg
parent 068ce415be
commit 039363f38b
6 changed files with 87 additions and 31 deletions
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4
include/linux/slab.h
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@@ -130,6 +130,10 @@ int kmem_cache_shrink(struct kmem_cache *);
void kmem_cache_free(struct kmem_cache *, void *);
unsigned int kmem_cache_size(struct kmem_cache *);
/* Slab internal function */
struct kmem_cache *__kmem_cache_create(const char *, size_t, size_t,
unsigned long,
void (*)(void *));
/*
* Please use this macro to create slab caches. Simply specify the
* name of the structure and maybe some flags that are listed above.