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slub: add 'likely' macro to inc_slabs_node()
author
Joonsoo Kim
<iamjoonsoo.kim@lge.com>
Mon, 21 Jan 2013 08:01:27 +0000
(17:01 +0900)
committer
Pekka Enberg
<penberg@kernel.org>
Tue, 2 Apr 2013 06:42:17 +0000
(09:42 +0300)
After boot phase, 'n' always exist.
So add 'likely' macro for helping compiler.
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
mm/slub.c
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diff --git
a/mm/slub.c
b/mm/slub.c
index 8f73593d4f21015ab38fef48f85744691e8b4492..21b3f004f614f3886529d548f2aa06a3dc12ab72 100644
(file)
--- a/
mm/slub.c
+++ b/
mm/slub.c
@@
-1005,7
+1005,7
@@
static inline void inc_slabs_node(struct kmem_cache *s, int node, int objects)
* dilemma by deferring the increment of the count during
* bootstrap (see early_kmem_cache_node_alloc).
*/
- if (
n
) {
+ if (
likely(n)
) {
atomic_long_inc(&n->nr_slabs);
atomic_long_add(objects, &n->total_objects);
}
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