[PATCH v2 04/29] slub: always get the cache from its page in kfree

From: Glauber Costa
Date: Fri May 11 2012 - 13:49:51 EST

struct page already have this information. If we start chaining
caches, this information will always be more trustworthy than
whatever is passed into the function

Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
CC: Christoph Lameter <cl@xxxxxxxxx>
CC: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
mm/slub.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 226e053..e606f1b 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2600,7 +2600,7 @@ void kmem_cache_free(struct kmem_cache *s, void *x)

page = virt_to_head_page(x);

- slab_free(s, page, x, _RET_IP_);
+ slab_free(page->slab, page, x, _RET_IP_);

trace_kmem_cache_free(_RET_IP_, x);

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