From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Christoph Lameter <cl@linux-foundation.org>,
js1304@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: [PATCH v2 3/3] slub: add 'likely' macro to inc_slabs_node()
Date: Mon, 21 Jan 2013 17:01:27 +0900 [thread overview]
Message-ID: <1358755287-3899-3-git-send-email-iamjoonsoo.kim@lge.com> (raw)
In-Reply-To: <1358755287-3899-1-git-send-email-iamjoonsoo.kim@lge.com>
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>
diff --git a/mm/slub.c b/mm/slub.c
index 8b95364..ddbd401 100644
--- 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);
}
--
1.7.9.5
--
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next prev parent reply other threads:[~2013-01-21 8:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 8:01 [PATCH v2 1/3] slub: correct to calculate num of acquired objects in get_partial_node() Joonsoo Kim
2013-01-21 8:01 ` [PATCH v2 2/3] slub: correct bootstrap() for kmem_cache, kmem_cache_node Joonsoo Kim
2013-01-23 15:25 ` Christoph Lameter
2013-01-21 8:01 ` Joonsoo Kim [this message]
2013-01-23 5:15 ` [PATCH v2 1/3] slub: correct to calculate num of acquired objects in get_partial_node() Wanpeng Li
2013-01-23 5:15 ` Wanpeng Li
2013-01-23 15:25 ` Christoph Lameter
2013-03-19 5:10 ` Joonsoo Kim
2013-04-02 6:43 ` Pekka Enberg
2013-04-02 19:17 ` Christoph Lameter
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