From: Li Zefan Subject: [PATCH v4 4/8] memcg: convert to use cgroup_is_descendant() Date: Wed, 31 Jul 2013 09:51:45 +0800 Message-ID: <51F86DB1.9030309@huawei.com> References: <51F86D69.2030907@huawei.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <51F86D69.2030907-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Tejun Heo Cc: Andrew Morton , Glauber Costa , KAMEZAWA Hiroyuki , Michal Hocko , Johannes Weiner , LKML , Cgroups , linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.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