From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 701AAC10F13 for ; Mon, 8 Apr 2019 15:18:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3FE7221841 for ; Mon, 8 Apr 2019 15:18:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="nHJOVw75" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728826AbfDHPSC (ORCPT ); Mon, 8 Apr 2019 11:18:02 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:34333 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728825AbfDHPSC (ORCPT ); Mon, 8 Apr 2019 11:18:02 -0400 Received: by mail-pl1-f193.google.com with SMTP id y6so7523849plt.1 for ; Mon, 08 Apr 2019 08:18:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=H6a4N7dedqDZzac8Nq1PhU4CMbtru19ONF+Mr9DUaPI=; b=nHJOVw75dbKJ0xiJ5p9svJaU9HLtCXQgEK7japbWYoUSGlTR3ztMmAA659keV2LPTk VRyv8603m8lbcNqIsY+bxmRJWz4MxETKDiTuhjLygQRPV/dagDpTHr297Nj1tZFLY3yR BzC6y4TENt/8Fu6HixUEcAOXxK2OvoXI/EIRoFtAohxtbZZqXXK7zC4SI4EePdz/5SC8 vxka8hk3op3c8XUyJp4vMaCVGaa2of7bF6TfsnDbFVvEdUqA/QMxYRceQ6iPIFtP2L7z /5xjaWfQZ0kMpX/PlUenl4W9xaaBWjIGKVNVXITHZroRE92QpZ5sbBfQZ+UgUuCI5wsD waQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=H6a4N7dedqDZzac8Nq1PhU4CMbtru19ONF+Mr9DUaPI=; b=UaKqbC/1yQHKxX212NxcGcoqmbKOww0BuDB8McM4ap6jATPMXzljffIShBYvLBBSJt ejcRgN4EPwNQp4pDujAj/LEv001fAWmKf/Aq0nxJmJ0+m+VSjFzR0HwLHcewCyHzXi86 Z0FtrgiMXEnqdo0W0LwluoJNOp6rb8AShxajIE/VJ4AkZHJv3nNGb7hOOB9vG/+2gfcs kWPpxw62rgo5sVqn29Tvpo2w7Ckpi5ToIYzLLhhy6mYUWqiyO2QmKJFleaypUX5eNtOw 4UL5ZeEWgDXM420KZ+QFQHW8bKNG4e+5UDdwPuGqUyDOhjAH02ducRVuMgRitpFqvbuW yuqw== X-Gm-Message-State: APjAAAWBgTF7w7DLUopF7bQq/oD3ksCOUkbI3TyO3pdMu7PCVH3MOvzA BpgR+xgFKISmRb+0x65/zc5mhQ== X-Google-Smtp-Source: APXvYqwaj7bx+0uRxZubEuONmxUgY97RL1E9o/sFuGluF2DCMyAe/vEMy/buiNGOg/0yWgxuPte9hQ== X-Received: by 2002:a17:902:31a4:: with SMTP id x33mr31121908plb.24.1554736681853; Mon, 08 Apr 2019 08:18:01 -0700 (PDT) Received: from [192.168.1.121] (66.29.188.166.static.utbb.net. [66.29.188.166]) by smtp.gmail.com with ESMTPSA id o81sm19517689pfa.156.2019.04.08.08.17.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Apr 2019 08:18:00 -0700 (PDT) Subject: Re: [PATCH 1/1] block, bfq: delete "bfq" prefix from cgroup filenames To: Paolo Valente , Johannes Thumshirn Cc: linux-block , linux-kernel , Ulf Hansson , Linus Walleij , Mark Brown , 'Paolo Valente' via bfq-iosched , Oleksandr Natalenko , Angelo Ruocco , lennart@poettering.net, mkoutny@suse.cz References: <20190408143935.9062-1-paolo.valente@linaro.org> <20190408143935.9062-2-paolo.valente@linaro.org> <20190408144925.GA23021@linux-x5ow.site> <7B68DAA9-61D9-4AE0-9FA9-05C07C7FE408@linaro.org> <20190408150430.GB23021@linux-x5ow.site> <20190408150828.GC23021@linux-x5ow.site> <5283A08F-FD6F-4A9C-841D-B49CE9B4CF1F@linaro.org> From: Jens Axboe Message-ID: Date: Mon, 8 Apr 2019 09:17:58 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <5283A08F-FD6F-4A9C-841D-B49CE9B4CF1F@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 4/8/19 9:14 AM, Paolo Valente wrote: > > >> Il giorno 8 apr 2019, alle ore 17:08, Johannes Thumshirn ha scritto: >> >> On Mon, Apr 08, 2019 at 09:05:19AM -0600, Jens Axboe wrote: >>> I did consider that, and that would be doable. But honestly, I'm having a >>> hard time seeing what issue we are attempting to fix by doing this. >> >> Yeah, I guess the real fix would be to update the documentation and the >> expectations user-space has. Including eventual re-write of some udev rules or >> whatever is facing these files. But to me that sounds more like a systemd or >> even distro thing than a kernel thing. >> > > Unfortunately the user-space people I have interacted with find crazy > to have to change their software to call bfq.weight the weight of a > group. And are not willing to do it [1]. Then you need to educate them. Some of the issues were called out years ago, at the time when we could have potentially renamed. A rename now will solve nothing. -- Jens Axboe