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Commit 07d417a1 authored by Joonsoo Kim's avatar Joonsoo Kim Committed by Pekka Enberg
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slab: remove cachep in struct slab_rcu 



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

Acked-by: default avatarAndi Kleen <ak@linux.intel.com>
Acked-by: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarJoonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: default avatarPekka Enberg <penberg@iki.fi>
parent 1ea991b0

mm/slab.c

+1 −3
Original line number Diff line number Diff line
@@ -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 {