Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936720Ab3DIDCd (ORCPT ); Mon, 8 Apr 2013 23:02:33 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:22700 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934408Ab3DIDCc (ORCPT ); Mon, 8 Apr 2013 23:02:32 -0400 Message-ID: <51638463.70009@huawei.com> Date: Tue, 9 Apr 2013 11:00:51 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130328 Thunderbird/17.0.5 MIME-Version: 1.0 To: Michal Hocko CC: Andrew Morton , Tejun Heo , Glauber Costa , KAMEZAWA Hiroyuki , Johannes Weiner , LKML , Cgroups , Subject: Re: [PATCH 4/8] memcg: convert to use cgroup_from_id() References: <51627DA9.7020507@huawei.com> <51627E09.5010605@huawei.com> <20130408145333.GL17178@dhcp22.suse.cz> In-Reply-To: <20130408145333.GL17178@dhcp22.suse.cz> Content-Type: text/plain; charset="ISO-8859-1" 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 Content-Length: 1537 Lines: 50 On 2013/4/8 22:53, Michal Hocko wrote: > On Mon 08-04-13 16:21:29, Li Zefan wrote: >> This is a preparation to kill css_id. >> >> Signed-off-by: Li Zefan > > I would be tempted to stuff this into the same patch which introduces > cgroup_from_id but this is just a minor thing. > yeah it's not a big deal, just want to separate changes to cgroup and memcg. > Acked-by: Michal Hocko > >> --- >> mm/memcontrol.c | 8 ++++---- >> 1 file changed, 4 insertions(+), 4 deletions(-) >> >> diff --git a/mm/memcontrol.c b/mm/memcontrol.c >> index 14f1375..3561d0b 100644 >> --- a/mm/memcontrol.c >> +++ b/mm/memcontrol.c >> @@ -2769,15 +2769,15 @@ static void __mem_cgroup_cancel_local_charge(struct mem_cgroup *memcg, >> */ >> static struct mem_cgroup *mem_cgroup_lookup(unsigned short id) >> { >> - struct cgroup_subsys_state *css; >> + struct cgroup *cgrp; >> >> /* ID 0 is unused ID */ >> if (!id) >> return NULL; >> - css = css_lookup(&mem_cgroup_subsys, id); >> - if (!css) >> + cgrp = cgroup_from_id(&mem_cgroup_subsys, id); >> + if (!cgrp) >> return NULL; >> - return mem_cgroup_from_css(css); >> + return mem_cgroup_from_cont(cgrp); >> } >> >> struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page) >> -- >> 1.8.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/