Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S966983Ab2EOVYZ (ORCPT <rfc822;w@1wt.eu>);
	Tue, 15 May 2012 17:24:25 -0400
Received: from mail-pz0-f46.google.com ([209.85.210.46]:64131 "EHLO
	mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S966928Ab2EOVYW (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Tue, 15 May 2012 17:24:22 -0400
Date: Tue, 15 May 2012 14:24:15 -0700 (PDT)
From: David Rientjes <rientjes@google.com>
X-X-Sender: rientjes@chino.kir.corp.google.com
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
cc: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>,
        "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
        mingo@kernel.org, pjt@google.com, paul@paulmenage.org,
        akpm@linux-foundation.org, rjw@sisk.pl, nacc@us.ibm.com,
        paulmck@linux.vnet.ibm.com, tglx@linutronix.de,
        seto.hidetoshi@jp.fujitsu.com, tj@kernel.org, mschmidt@redhat.com,
        berrange@redhat.com, nikunj@linux.vnet.ibm.com,
        vatsa@linux.vnet.ibm.com, liuj97@gmail.com,
        linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org
Subject: Re: [PATCH v3 5/5] cpusets, suspend: Save and restore cpusets during
 suspend/resume
In-Reply-To: <1337116107.27694.114.camel@twins>
Message-ID: <alpine.DEB.2.00.1205151414210.1656@chino.kir.corp.google.com>
References: <20120513231325.3566.37740.stgit@srivatsabhat> <20120513231710.3566.45349.stgit@srivatsabhat> <alpine.DEB.2.00.1205141735050.25235@chino.kir.corp.google.com> <20120515014042.GA9774@linux.vnet.ibm.com> <alpine.DEB.2.00.1205142055160.10906@chino.kir.corp.google.com>
 <20120515044539.GA25256@linux.vnet.ibm.com> <alpine.DEB.2.00.1205151106490.24304@chino.kir.corp.google.com> <1337112653.27694.110.camel@twins> <alpine.DEB.2.00.1205151346570.1656@chino.kir.corp.google.com> <1337116107.27694.114.camel@twins>
User-Agent: Alpine 2.00 (DEB 1167 2008-08-23)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 767
Lines: 17

On Tue, 15 May 2012, Peter Zijlstra wrote:

> > Why can't we leave cpuset.cpus unaltered for all cpusets during suspend?  
> 
> We can, that's what Srivatsa is going to make. The only thing I object
> to is the !suspend hotplug case.
> 

Srivatsa is going to do that in another patchset in addition to this one?  
We shouldn't need to store any old cpumask at all, just allow cpuset.cpus 
to be a superset of online cpus during s/r and don't touch cpusets at all 
since the cpus, as you said, are guaranteed to come back.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/