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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2013-10-24 10:07:43 +0900
committerPekka Enberg <penberg@iki.fi>2013-10-24 20:17:32 +0300
commit56f295ef0dfa7e1d0be18deebe0c15fb6b2d9d5b (patch)
tree044d1c6e72a7a464f777f1fcb5d23fe40c38e376
parent68126702b419fd26ef4946e314bb3a1f57d3a53f (diff)
downloadop-kernel-dev-56f295ef0dfa7e1d0be18deebe0c15fb6b2d9d5b.zip
op-kernel-dev-56f295ef0dfa7e1d0be18deebe0c15fb6b2d9d5b.tar.gz
slab: use well-defined macro, virt_to_slab()
This is trivial change, just use well-defined macro. 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>
-rw-r--r--mm/slab.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 84c4ed6..f9e676e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2865,7 +2865,6 @@ static inline void verify_redzone_free(struct kmem_cache *cache, void *obj)
static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
unsigned long caller)
{
- struct page *page;
unsigned int objnr;
struct slab *slabp;
@@ -2873,9 +2872,7 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
objp -= obj_offset(cachep);
kfree_debugcheck(objp);
- page = virt_to_head_page(objp);
-
- slabp = page->slab_page;
+ slabp = virt_to_slab(objp);
if (cachep->flags & SLAB_RED_ZONE) {
verify_redzone_free(cachep, objp);
@@ -3087,7 +3084,7 @@ static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep,
struct slab *slabp;
unsigned objnr;
- slabp = virt_to_head_page(objp)->slab_page;
+ slabp = virt_to_slab(objp);
objnr = (unsigned)(objp - slabp->s_mem) / cachep->size;
slab_bufctl(slabp)[objnr] = BUFCTL_ACTIVE;
}
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