From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933233AbaHYOrT (ORCPT ); Mon, 25 Aug 2014 10:47:19 -0400 Received: from mail-qc0-f171.google.com ([209.85.216.171]:63812 "EHLO mail-qc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932613AbaHYOrO (ORCPT ); Mon, 25 Aug 2014 10:47:14 -0400 Date: Mon, 25 Aug 2014 10:47:10 -0400 From: Tejun Heo To: Dongsheng Yang Cc: Dongsheng Yang , lizefan@huawei.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V2] cgroup: Introduce cgroup_detach_task(). Message-ID: <20140825144710.GA21688@htj.dyndns.org> References: <1408966330-2374-1-git-send-email-yangds.fnst@cn.fujitsu.com> <20140825141220.GA31066@mtj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 25, 2014 at 10:46:03PM +0800, Dongsheng Yang wrote: > My point here is that attaching and detaching are a pair of operations. There is no detaching from a cgroup. A task is always attached to a cgroup whether that's a root or non-root cgroup. Thanks. -- tejun