From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758825Ab3GaBwQ (ORCPT ); Tue, 30 Jul 2013 21:52:16 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:48147 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751381Ab3GaBwO (ORCPT ); Tue, 30 Jul 2013 21:52:14 -0400 Message-ID: <51F86DB1.9030309@huawei.com> Date: Wed, 31 Jul 2013 09:51:45 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: Tejun Heo CC: Andrew Morton , Glauber Costa , KAMEZAWA Hiroyuki , Michal Hocko , Johannes Weiner , LKML , Cgroups , Subject: [PATCH v4 4/8] memcg: convert to use cgroup_is_descendant() References: <51F86D69.2030907@huawei.com> In-Reply-To: <51F86D69.2030907@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 d12ca6f..626c426 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1434,7 +1434,7 @@ 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