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authorJoonsoo Kim <iamjoonsoo.kim@lge.com>2014-08-07 01:04:22 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 03:01:14 +0200
commit25c063fbd5512eb7190bf5af88351109aededb3f (patch)
tree861c20931ee12c950cc56d64c9965dd630c277bb /mm/slab.c
parentslab: add unlikely macro to help compiler (diff)
downloadlinux-25c063fbd5512eb7190bf5af88351109aededb3f.tar.xz
linux-25c063fbd5512eb7190bf5af88351109aededb3f.zip
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>
Diffstat (limited to '')
-rw-r--r--mm/slab.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 7d07942b9804..205632c94a6a 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -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);