From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756724Ab2HNRfi (ORCPT ); Tue, 14 Aug 2012 13:35:38 -0400 Received: from mail-yw0-f46.google.com ([209.85.213.46]:48239 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755663Ab2HNRfg (ORCPT ); Tue, 14 Aug 2012 13:35:36 -0400 Date: Tue, 14 Aug 2012 10:35:31 -0700 From: Tejun Heo To: Marc Dietrich Cc: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, mingo@redhat.com, lauro.venancio@openbossa.org, jak@jak-linux.org, Stefan Richter , Daniel Vetter , Alasdair Kergon , Aloisio Almeida Jr , Samuel Ortiz , Rob Clark , Christine Caulfield , Steven Whitehouse , Christoph Hellwig , Sage Weil Subject: Re: [PATCH 6/6] workqueue: deprecate WQ_NON_REENTRANT Message-ID: <20120814173531.GP25632@google.com> References: <1344908986-18152-1-git-send-email-tj@kernel.org> <1344908986-18152-7-git-send-email-tj@kernel.org> <2904218.ZgtLmH5Irc@ax5200p> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2904218.ZgtLmH5Irc@ax5200p> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Tue, Aug 14, 2012 at 07:24:59PM +0200, Marc Dietrich wrote: > the nvec driver had its own workqueue because we found that it reduced some > timimg induced protocol errors. I just tested your patch which uses the system > workqueue and I failed to reproduce these protocol errors under stress > testing, so I think it's ok. Thanks, there shouldn't be any difference whether you use system_wq or your own. > Because this is a single patch affecting many drivers, is this going through > linux-next or some subsystem tree? Maybe it would have been better to split it > in one patch per driver. Otherwise ... I generally think it's better to do quick one time conversion for things like this, but this patch is rather borderline. It might be better to separate out the non trivialones and route them separately. I'll think more about it. Thanks. -- tejun