From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx165.postini.com [74.125.245.165]) by kanga.kvack.org (Postfix) with SMTP id BFB936B0031 for ; Wed, 24 Jul 2013 21:54:10 -0400 (EDT) Message-ID: <51F08505.6050402@huawei.com> Date: Thu, 25 Jul 2013 09:53:09 +0800 From: Li Zefan MIME-Version: 1.0 Subject: [PATCH] memcg: remove redundant code in mem_cgroup_force_empty_write() Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Michal Hocko , KAMEZAWA Hiroyuki , Johannes Weiner , LKML , linux-mm@kvack.org, Cgroups , Tejun Heo vfs guarantees the cgroup won't be destroyed, so it's redundant to get a css reference. Signed-off-by: Li Zefan --- mm/memcontrol.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 03c8bf7..aa3e478 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -5015,15 +5015,10 @@ static int mem_cgroup_force_empty(struct mem_cgroup *memcg) static int mem_cgroup_force_empty_write(struct cgroup *cont, unsigned int event) { struct mem_cgroup *memcg = mem_cgroup_from_cont(cont); - int ret; if (mem_cgroup_is_root(memcg)) return -EINVAL; - css_get(&memcg->css); - ret = mem_cgroup_force_empty(memcg); - css_put(&memcg->css); - - return ret; + return mem_cgroup_force_empty(memcg); } -- 1.8.0.2 -- 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