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Commit 56f295ef authored by Joonsoo Kim's avatar Joonsoo Kim Committed by Pekka Enberg
Browse files

slab: use well-defined macro, virt_to_slab() 



This is trivial change, just use well-defined macro.

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 68126702

mm/slab.c

+2 −5
Original line number Diff line number Diff line
@@ -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;

	}