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mm/sl[aou]b: Extract a common function for kmem_cache_destroy

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kmem_cache_destroy does basically the same in all allocators.

Extract common code which is easy since we already have common mutex
handling.

Reviewed-by: Glauber Costa <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Pekka Enberg <[email protected]>
This commit is contained in:
Christoph Lameter 2012-09-04 23:18:33 +00:00 • committed by Pekka Enberg
commit 945cf2b619
5 changed files with 49 additions and 75 deletions
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15
mm/slob.c
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@ -538,18 +538,11 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
return c;
}
void kmem_cache_destroy(struct kmem_cache *c)
void __kmem_cache_destroy(struct kmem_cache *c)
{
mutex_lock(&slab_mutex);
list_del(&c->list);
mutex_unlock(&slab_mutex);
kmemleak_free(c);
if (c->flags & SLAB_DESTROY_BY_RCU)
rcu_barrier();
slob_free(c, sizeof(struct kmem_cache));
}
EXPORT_SYMBOL(kmem_cache_destroy);
void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
{
@ -617,6 +610,12 @@ unsigned int kmem_cache_size(struct kmem_cache *c)
}
EXPORT_SYMBOL(kmem_cache_size);
int __kmem_cache_shutdown(struct kmem_cache *c)
{
/* No way to check for remaining objects */
return 0;
}
int kmem_cache_shrink(struct kmem_cache *d)
{
return 0;