From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:57004 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933372AbcKDAOj (ORCPT ); Thu, 3 Nov 2016 20:14:39 -0400 Date: Thu, 3 Nov 2016 17:13:54 -0700 From: Shaohua Li To: Christoph Hellwig CC: , , , Subject: Re: [PATCH V2 2/2] blk-mq: immediately dispatch big size request Message-ID: <20161104001353.GA58908@omida-mbp.local.dhcp.thefacebook.com> References: <05e8cb8c7e09903c7db36e81a6bbd0b39b24deff.1478217670.git.shli@fb.com> <6297c9a39cf21c94c65d5a9b3a19e54ba5b8b573.1478217671.git.shli@fb.com> <20161104000954.GA10266@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <20161104000954.GA10266@infradead.org> Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org On Thu, Nov 03, 2016 at 05:09:54PM -0700, Christoph Hellwig wrote: > On Thu, Nov 03, 2016 at 05:03:54PM -0700, Shaohua Li wrote: > > This is corresponding part for blk-mq. Disk with multiple hardware > > queues doesn't need this as we only hold 1 request at most. > > Any reason you only do this for the SQ and not the MQ case? Right above: Disk with multiple hardware queues doesn't need this as we only hold 1 request at most. Thanks, Shaohua