From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753577Ab3IWI4c (ORCPT ); Mon, 23 Sep 2013 04:56:32 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:2742 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752335Ab3IWI42 (ORCPT ); Mon, 23 Sep 2013 04:56:28 -0400 Message-ID: <5240020F.3010008@huawei.com> Date: Mon, 23 Sep 2013 16:55:43 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: Andrew Morton CC: Tejun Heo , Michal Hocko , "KAMEZAWA Hiroyuki" , Johannes Weiner , LKML , cgroups , "linux-mm@kvack.org" Subject: [PATCH v6 1/5] memcg: convert to use cgroup_is_descendant() References: <524001F8.6070205@huawei.com> In-Reply-To: <524001F8.6070205@huawei.com> Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.135.68.215] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a preparation to kill css_id. Signed-off-by: Li Zefan Acked-by: Michal Hocko --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 7dda769..9117249 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1405,7 +1405,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg, return true; if (!root_memcg->use_hierarchy || !memcg) return false; - return css_is_ancestor(&memcg->css, &root_memcg->css); + return cgroup_is_descendant(memcg->css.cgroup, root_memcg->css.cgroup); } static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg, -- 1.8.0.2