From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753403AbbJ1Wc0 (ORCPT <rfc822;w@1wt.eu>);
	Wed, 28 Oct 2015 18:32:26 -0400
Received: from resqmta-ch2-06v.sys.comcast.net ([69.252.207.38]:57030 "EHLO
	resqmta-ch2-06v.sys.comcast.net" rhost-flags-OK-OK-OK-OK)
	by vger.kernel.org with ESMTP id S1751799AbbJ1WcS (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Wed, 28 Oct 2015 18:32:18 -0400
Date: Wed, 28 Oct 2015 17:32:15 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
X-X-Sender: cl@east.gentwo.org
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
cc: htejun@gmail.com, akpm@linux-foundation.org, mhocko@kernel.org,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        torvalds@linux-foundation.org, hannes@cmpxchg.org, mgorman@suse.de
Subject: Re: [patch 3/3] vmstat: Create our own workqueue
In-Reply-To: <201510282057.JHI87536.OMOFFFLJOHQtVS@I-love.SAKURA.ne.jp>
Message-ID: <alpine.DEB.2.20.1510281730410.15758@east.gentwo.org>
References: <20151028024114.370693277@linux.com> <20151028024131.719968999@linux.com> <20151028024350.GA10448@mtj.duckdns.org> <alpine.DEB.2.20.1510272202120.4647@east.gentwo.org> <201510282057.JHI87536.OMOFFFLJOHQtVS@I-love.SAKURA.ne.jp>
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

On Wed, 28 Oct 2015, Tetsuo Handa wrote:

> Christoph Lameter wrote:
> > On Wed, 28 Oct 2015, Tejun Heo wrote:
> >
> > > The only thing necessary here is WQ_MEM_RECLAIM.  I don't see how
> > > WQ_SYSFS and WQ_FREEZABLE make sense here.
> >
> I can still trigger silent livelock with this patchset applied.

Ok so why the vmstat updater still deferred, Tejun?