From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755557Ab3C2Gqf (ORCPT ); Fri, 29 Mar 2013 02:46:35 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:55150 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753313Ab3C2GqU (ORCPT ); Fri, 29 Mar 2013 02:46:20 -0400 Message-ID: <5155383F.8000005@huawei.com> Date: Fri, 29 Mar 2013 14:44:15 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:17.0) Gecko/20130307 Thunderbird/17.0.4 MIME-Version: 1.0 To: Ingo Molnar CC: Tejun Heo , Peter Zijlstra , LKML , Cgroups Subject: [PATCH v2 3/5] cpuacct: Initialize cpuacct subsystem earlier References: <51553813.10004@huawei.com> In-Reply-To: <51553813.10004@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 Initialize cpuacct before the scheduler is functioning, so when cpuacct_charge() and cpuacct_account_field() are called, task_ca() won't return NULL. Signed-off-by: Li Zefan --- kernel/sched/cpuacct.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index 0425581..75e46d2 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -292,9 +292,10 @@ void cpuacct_account_field(struct task_struct *p, int index, u64 val) } struct cgroup_subsys cpuacct_subsys = { - .name = "cpuacct", - .css_alloc = cpuacct_css_alloc, - .css_free = cpuacct_css_free, - .subsys_id = cpuacct_subsys_id, - .base_cftypes = files, + .name = "cpuacct", + .css_alloc = cpuacct_css_alloc, + .css_free = cpuacct_css_free, + .subsys_id = cpuacct_subsys_id, + .base_cftypes = files, + .early_init = 1, }; -- 1.8.0.2