From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755193Ab3CRWfc (ORCPT ); Mon, 18 Mar 2013 18:35:32 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:61257 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752296Ab3CRWfa (ORCPT ); Mon, 18 Mar 2013 18:35:30 -0400 Date: Mon, 18 Mar 2013 15:35:26 -0700 From: Tejun Heo To: Jan Kara Cc: axboe@kernel.dk, laijs@cn.fujitsu.com, fengguang.wu@intel.com, linux-kernel@vger.kernel.org, jmoyer@redhat.com Subject: Re: [PATCH 3/4] writeback: replace custom worker pool implementation with unbound workqueue Message-ID: <20130318223526.GH3042@htj.dyndns.org> References: <1362692649-25570-1-git-send-email-tj@kernel.org> <1362692649-25570-4-git-send-email-tj@kernel.org> <20130312150510.GF13152@quack.suse.cz> <20130318223244.GA11188@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130318223244.GA11188@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Jan. On Mon, Mar 18, 2013 at 11:32:44PM +0100, Jan Kara wrote: > I realized there may be one issue - so far we have a clear identification > which thread works for which bdi in the thread name (flush-x:y naming). > That was useful when debugging things. Now with your worker pool this is > lost, am I right? Would it be possible to restore that? Unfortunately not directly. It shouldn't be difficult to tell who's working on what from workqueue and writeback tracepoints tho. Thanks. -- tejun