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.
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
diff --git a/mm/slab.c b/mm/slab.c
index e2c80df..92d08e3 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3340,7 +3340,7 @@ 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 = cachep->node[node];
for (i = 0; i < nr_objects; i++) {
void *objp;
@@ -3349,7 +3349,6 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
objp = clear_obj_pfmemalloc(objpp[i]);
page = virt_to_head_page(objp);
- n = cachep->node[node];
list_del(&page->lru);
check_spinlock_acquired_node(cachep, node);
slab_put_obj(cachep, page, objp, node);
--
1.7.9.5
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