[PATCH 5/6] memcg: optimize memcg_get_hierarchical_limit
From: Wanpeng Li <hidden>
Date: 2012-06-23 06:19:23
Also in:
linux-mm, lkml
Subsystem:
control group - memory resource controller (memcg), memory management, the rest · Maintainers:
Johannes Weiner, Michal Hocko, Roman Gushchin, Shakeel Butt, Andrew Morton, Linus Torvalds
From: Wanpeng Li <redacted> Optimize memcg_get_hierarchical_limit to save cpu cycle. Signed-off-by: Wanpeng Li <redacted> --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c821e36..1ca79e2 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c@@ -3917,9 +3917,9 @@ static void memcg_get_hierarchical_limit(struct mem_cgroup *memcg, min_limit = res_counter_read_u64(&memcg->res, RES_LIMIT); min_memsw_limit = res_counter_read_u64(&memcg->memsw, RES_LIMIT); - cgroup = memcg->css.cgroup; if (!memcg->use_hierarchy) goto out; + cgroup = memcg->css.cgroup; while (cgroup->parent) { cgroup = cgroup->parent;
--
1.7.9.5