From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx177.postini.com [74.125.245.177]) by kanga.kvack.org (Postfix) with SMTP id E6FF86B029F for ; Sat, 23 Jun 2012 02:19:22 -0400 (EDT) Received: by dakp5 with SMTP id p5so3917750dak.14 for ; Fri, 22 Jun 2012 23:19:22 -0700 (PDT) From: Wanpeng Li Subject: [PATCH 5/6] memcg: optimize memcg_get_hierarchical_limit Date: Sat, 23 Jun 2012 14:18:17 +0800 Message-Id: <1340432297-5362-1-git-send-email-liwp.linux@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: Michal Hocko , Johannes Weiner , Balbir Singh , KAMEZAWA Hiroyuki , Andrew Morton , Mel Gorman , Minchan Kim , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Gavin Shan , Wanpeng Li From: Wanpeng Li Optimize memcg_get_hierarchical_limit to save cpu cycle. Signed-off-by: Wanpeng Li --- 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org