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slab: remove cachep in struct slab_rcu

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We can get cachep using page in struct slab_rcu, so remove it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
This commit is contained in:
Joonsoo Kim 2013-10-24 10:07:41 +09:00 committed by Pekka Enberg
parent 1ea991b00c
commit 07d417a1c6
1 changed files with 1 additions and 3 deletions
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4
mm/slab.c
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@ -204,7 +204,6 @@ typedef unsigned int kmem_bufctl_t;
*/
struct slab_rcu {
struct rcu_head head;
struct kmem_cache *cachep;
struct page *page;
};
@ -1824,7 +1823,7 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
static void kmem_rcu_free(struct rcu_head *head)
{
struct slab_rcu *slab_rcu = (struct slab_rcu *)head;
struct kmem_cache *cachep = slab_rcu->cachep;
struct kmem_cache *cachep = slab_rcu->page->slab_cache;
kmem_freepages(cachep, slab_rcu->page);
if (OFF_SLAB(cachep))
@ -2052,7 +2051,6 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
struct slab_rcu *slab_rcu;
slab_rcu = (struct slab_rcu *)slabp;
slab_rcu->cachep = cachep;
slab_rcu->page = page;
call_rcu(&slab_rcu->head, kmem_rcu_free);
} else {