From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755304Ab2GaPqe (ORCPT ); Tue, 31 Jul 2012 11:46:34 -0400 Received: from casper.infradead.org ([85.118.1.10]:54915 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755085Ab2GaPqb (ORCPT ); Tue, 31 Jul 2012 11:46:31 -0400 Message-ID: <5017FDCE.5030700@kernel.dk> Date: Tue, 31 Jul 2012 17:46:22 +0200 From: Jens Axboe MIME-Version: 1.0 To: merez@codeaurora.org CC: linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org, DOCUMENTATION , open list Subject: Re: [PATCH v5 1/3] block: Add test-iosched scheduler References: <1343744710-31700-2-git-send-email-merez@codeaurora.org> <09c3a301ad7ca4fa396c4d00615312c1.squirrel@www.codeaurora.org> In-Reply-To: <09c3a301ad7ca4fa396c4d00615312c1.squirrel@www.codeaurora.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/31/2012 04:36 PM, merez@codeaurora.org wrote: > Hi Jens, > > Do you have comments on this patch? > Can we push it to kernel 3.6 version? I have questions - what is this good for? In other words, explain to me why this is useful code. And in particular why this cannot be done from userspace with bsg and block tracing? IOW, I'm dubious as to whether a new _io scheduler_ is the correct solution to the problem you have at hand. -- Jens Axboe