From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754284AbbDMOvB (ORCPT ); Mon, 13 Apr 2015 10:51:01 -0400 Received: from mail-qk0-f181.google.com ([209.85.220.181]:34782 "EHLO mail-qk0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753847AbbDMOu5 (ORCPT ); Mon, 13 Apr 2015 10:50:57 -0400 Date: Mon, 13 Apr 2015 10:50:52 -0400 From: Tejun Heo To: Preeti U Murthy Cc: svaidy@linux.vnet.ibm.com, peterz@infradead.org, nacc@linux.vnet.ibm.com, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, lizefan@huawei.com, anton@samba.org, bharata@linux.vnet.ibm.com, cgroups@vger.kernel.org, paulmck@linux.vnet.ibm.com, mingo@kernel.org, serge@hallyn.com Subject: Re: [PATCH V2] cpuset: Add knob to make allowed masks hotplug invariant on legacy hierarchy Message-ID: <20150413145052.GC2596@htj.duckdns.org> References: <20150410141118.11284.36206.stgit@preeti.in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150410141118.11284.36206.stgit@preeti.in.ibm.com> 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 Fri, Apr 10, 2015 at 07:41:52PM +0530, Preeti U Murthy wrote: > Moreover the default hierarchy keeps the allowed masks hotplug invariant > too. So the patch is not bringing about a fundamental change in the > design of cgroups. This is gonna be a new behavior anyway and I don't follow why you just can't use the default hierarchy (well, of course except for that it isn't ready yet but no matter what we do this is gonna take another devel cycle so what's the difference?). It's not like the default hierarchy requires invasive changes. I'm not convinced this calls for yet another operation mode. Thanks. -- tejun