We can get cachep using page in struct slab_rcu, so remove it.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
diff --git a/mm/slab.c b/mm/slab.c
index 69dc25a..b378f91 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -204,7 +204,6 @@ typedef unsigned int kmem_bufctl_t;
*/
struct slab_rcu {
struct rcu_head head;
- struct kmem_cache *cachep;
struct page *page;
};
@@ -1818,7 +1817,7 @@ 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))
@@ -2046,7 +2045,6 @@ 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 {
--
1.7.9.5
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