From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755175AbbJ1Cn5 (ORCPT ); Tue, 27 Oct 2015 22:43:57 -0400 Received: from mail-pa0-f51.google.com ([209.85.220.51]:34617 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752053AbbJ1Cn4 (ORCPT ); Tue, 27 Oct 2015 22:43:56 -0400 Date: Wed, 28 Oct 2015 11:43:50 +0900 From: Tejun Heo To: Christoph Lameter Cc: akpm@linux-foundation.org, Michal Hocko , Tetsuo Handa , 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 Message-ID: <20151028024350.GA10448@mtj.duckdns.org> References: <20151028024114.370693277@linux.com> <20151028024131.719968999@linux.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151028024131.719968999@linux.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Tue, Oct 27, 2015 at 09:41:17PM -0500, Christoph Lameter wrote: > + vmstat_wq = alloc_workqueue("vmstat", > + WQ_FREEZABLE| > + WQ_SYSFS| > + WQ_MEM_RECLAIM, 0); The only thing necessary here is WQ_MEM_RECLAIM. I don't see how WQ_SYSFS and WQ_FREEZABLE make sense here. Thanks. -- tejun