From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935089AbcHaOVz (ORCPT ); Wed, 31 Aug 2016 10:21:55 -0400 Received: from mail-yw0-f195.google.com ([209.85.161.195]:35425 "EHLO mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934876AbcHaOVv (ORCPT ); Wed, 31 Aug 2016 10:21:51 -0400 Date: Wed, 31 Aug 2016 10:21:49 -0400 From: Tejun Heo To: Bhaktipriya Shridhar Cc: Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Shaohua Li , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] dm-bufio: Remove deprecated create_singlethread_workqueue Message-ID: <20160831142149.GH12660@htj.duckdns.org> References: <20160830164911.GA26756@Karyakshetra> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160830164911.GA26756@Karyakshetra> User-Agent: Mutt/1.7.0 (2016-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 30, 2016 at 10:19:11PM +0530, Bhaktipriya Shridhar wrote: > The workqueue "dm_bufio_wq" queues a single work item &dm_bufio_work and > hence it doesn't require execution ordering. Hence, alloc_workqueue has > been used to replace the deprecated create_singlethread_workqueue instance. > > The WQ_MEM_RECLAIM flag has been set since md / dm are block multi disk > drivers and require forward progress under memory pressure. > > Since there are fixed number of work items, explicit concurrency > limit is unnecessary here. > > Signed-off-by: Bhaktipriya Shridhar Acked-by: Tejun Heo Thanks. -- tejun