From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758063AbZBXBlV (ORCPT ); Mon, 23 Feb 2009 20:41:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753592AbZBXBlN (ORCPT ); Mon, 23 Feb 2009 20:41:13 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:54833 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753726AbZBXBlM (ORCPT ); Mon, 23 Feb 2009 20:41:12 -0500 Message-ID: <49A35048.3000304@cn.fujitsu.com> Date: Tue, 24 Feb 2009 09:41:28 +0800 From: Li Zefan User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: KAMEZAWA Hiroyuki CC: "linux-kernel@vger.kernel.org" , menage@google.com, containers@lists.linux-foundation.org Subject: Re: Question for remount References: <20090220190223.e8b4f6a8.kamezawa.hiroyu@jp.fujitsu.com> <49A20976.2050301@cn.fujitsu.com> <49A21044.40402@cn.fujitsu.com> <20090224103659.069e6b33.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20090224103659.069e6b33.kamezawa.hiroyu@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> To change the set of subsystems bound to a mounted hierarchy, just >> remount with different options: >> +# mount -o remount,cpuset,ns hier1 /dev/cgroup >> >> -# mount -o remount,cpuset,ns /dev/cgroup >> +Now numtasks is removed from the hierarchy and ns is added. >> + >> +Note this will add ns to the hierarchy but won't remove numtasks or >> +cpuset: >> +# mount -o remount,ns /dev/cgroup >> > > Just a question. What is "numtasks" here ? We have numtasks cgroup ? > No, I guess that's a proposed but not implemented cgroup subsystem. :) And I can change it to an existing one.