From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752484AbcGBNqX (ORCPT ); Sat, 2 Jul 2016 09:46:23 -0400 Received: from mail-it0-f44.google.com ([209.85.214.44]:38222 "EHLO mail-it0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751409AbcGBNqU (ORCPT ); Sat, 2 Jul 2016 09:46:20 -0400 Date: Sat, 2 Jul 2016 09:46:14 -0400 From: Tejun Heo To: Bhaktipriya Shridhar Cc: Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/radeon: Remove deprecated create_singlethread_workqueue Message-ID: <20160702134614.GB17431@htj.duckdns.org> References: <20160702110350.GA3601@Karyakshetra> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160702110350.GA3601@Karyakshetra> User-Agent: Mutt/1.6.1 (2016-04-27) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jul 02, 2016 at 04:33:50PM +0530, Bhaktipriya Shridhar wrote: > alloc_workqueue replaces deprecated create_singlethread_workqueue(). > > A dedicated workqueue has been used since work items need to be flushed > as a group rather than individually. > > Since the flip_queue workqueue is involved in page-flipping and is not > being used on a memory reclaim path, WQ_MEM_RECLAIM has not been set. > > Since there are only a fixed number of work items, explicit concurrency > limit is unnecessary here. What are the involved work items? Is it safe to run them concurrently? Thanks. -- tejun