From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1945922AbaDQNQU (ORCPT ); Thu, 17 Apr 2014 09:16:20 -0400 Received: from mail-qc0-f174.google.com ([209.85.216.174]:55442 "EHLO mail-qc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932089AbaDQNQT (ORCPT ); Thu, 17 Apr 2014 09:16:19 -0400 Date: Thu, 17 Apr 2014 09:16:15 -0400 From: Tejun Heo To: Glyn Normington Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH v4] control groups: documentation improvements Message-ID: <20140417131615.GH26632@htj.dyndns.org> References: <20140310142014.GC25290@htj.dyndns.org> <5321D6FA.4040500@gopivotal.com> <53225C69.3010202@huawei.com> <53230475.5050805@gopivotal.com> <20140314140136.GF12613@htj.dyndns.org> <53230C7E.7060607@gopivotal.com> <533C05D8.8020600@gopivotal.com> <533C0DD9.1050809@gopivotal.com> <20140416210025.GE26632@htj.dyndns.org> <534FB0F5.3010904@gopivotal.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <534FB0F5.3010904@gopivotal.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Glyn. On Thu, Apr 17, 2014 at 11:46:13AM +0100, Glyn Normington wrote: > +There may be zero or more active hierarchies. Each hierarchy has an > +instance of the cgroup virtual filesystem associated with it. The tree > +of cgroups is represented by the directory tree in the cgroup virtual > +filesystem. > + > +The sets of subsystems participating in distinct hierarchies are either > +identical or disjoint. If the sets are identical, the virtual filesystems > +associated with the hierarchies have identical content and a change in > +one is automatically reflected in all the others. I can't say I'm a big fan of these definitions in mathematical terms. They're so precise and useless at the same time. That said, I don't really understand the last paragraph. Is it trying to talk about multiple mounts of a single hierarchy? Thanks. -- tejun