Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756618AbbEETBJ (ORCPT ); Tue, 5 May 2015 15:01:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53407 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753310AbbEETBH (ORCPT ); Tue, 5 May 2015 15:01:07 -0400 Message-ID: <1430852465.11260.1.camel@fedoraproject.org> Subject: Re: [PATCH 0/2] block: loop: fix stacked loop and performance regression From: "Justin M. Forbes" To: Ming Lei Cc: Jens Axboe , linux-kernel@vger.kernel.org, Jeff Moyer , Tejun Heo , Christoph Hellwig Date: Tue, 05 May 2015 14:01:05 -0500 In-Reply-To: <1430826595-5888-1-git-send-email-ming.lei@canonical.com> References: <1430826595-5888-1-git-send-email-ming.lei@canonical.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 27 On Tue, 2015-05-05 at 19:49 +0800, Ming Lei wrote: > Hi, > > The 1st patch convers to per-device workqueue because loop devices > can be stacked. > > The 2nd patch decreases max active works as 16, so that fedora 22's > boot performance regression can be fixed. > > drivers/block/loop.c | 30 ++++++++++++++---------------- > drivers/block/loop.h | 1 + > 2 files changed, 15 insertions(+), 16 deletions(-) > > > Thanks, > Ming Lei > Tested with Fedora 22 ISOs, these still solve the problem for us. Tested-by: Justin M. Forbes -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/