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slab: move up code to get kmem_cache_node in free_block() 

node isn't changed, so we don't need to retreive this structure
everytime we move the object.  Maybe compiler do this optimization, but
making it explicitly is better.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joonsoo Kim 2014-08-06 16:04:22 -07:00 committed by Linus Torvalds
parent 8a9c61d438
commit 25c063fbd5
1 changed files with 1 additions and 2 deletions
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3
mm/slab.c
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@ -3398,7 +3398,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
int node)
{
int i;
struct kmem_cache_node *n;
struct kmem_cache_node *n = get_node(cachep, node);
for (i = 0; i < nr_objects; i++) {
void *objp;
@ -3408,7 +3408,6 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
objp = objpp[i];
page = virt_to_head_page(objp);
n = get_node(cachep, node);
list_del(&page->lru);
check_spinlock_acquired_node(cachep, node);
slab_put_obj(cachep, page, objp, node);