From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759224AbcCDRju (ORCPT ); Fri, 4 Mar 2016 12:39:50 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:32944 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759072AbcCDRjt (ORCPT ); Fri, 4 Mar 2016 12:39:49 -0500 Date: Fri, 4 Mar 2016 09:39:47 -0800 From: Christoph Hellwig To: Linus Walleij Cc: Tejun Heo , Paolo Valente , Jens Axboe , Fabio Checconi , Arianna Avanzini , linux-block@vger.kernel.org, "linux-kernel@vger.kernel.org" , Ulf Hansson , Mark Brown Subject: Re: [PATCH RFC 09/22] block, cfq: replace CFQ with the BFQ-v0 I/O scheduler Message-ID: <20160304173947.GA16764@infradead.org> References: <1454364778-25179-1-git-send-email-paolo.valente@linaro.org> <1454364778-25179-10-git-send-email-paolo.valente@linaro.org> <20160211222210.GC3741@mtj.duckdns.org> <8FDE2B10-9BD2-4741-917F-5A37A74E5B58@linaro.org> <20160217170206.GU3741@mtj.duckdns.org> <72E81252-203C-4EB7-8459-B9B7060029C6@linaro.org> <20160301184656.GI3965@htj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Mar 05, 2016 at 12:29:39AM +0700, Linus Walleij wrote: > Hi Tejun, > > I'm doing a summary of this discussion as a part of presenting > Linaro's involvement in Paolo's work. So I try to understand things. Btw, can someone explain why you guys waste so much time hacking and arguing about a legacy codebase (old request code and I/O schedulers) that everyone would really like to see disappear. Why don't you spend your time on blk-mq where you have an entirely clean slate for scheduling?