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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT 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 9476BC468BC for ; Sun, 9 Jun 2019 02:30:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 659AF216C4 for ; Sun, 9 Jun 2019 02:30:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560047418; bh=UQjHYwpwEpxknOaR7l2kXR4nTBTBcQRRbiviJ8rAIjk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Oev4o0y7EYmqAQ5E/Zk+AadnBk7ky3wnMNfGg/zl+2bjm62Q8XluBa7H9X9ffEz5C QxOEhVShS7QRHmEXV807ZdQ6g7mp+pEz2evpiaS4BxGHdGqOsXdSjM1svBxVkyL0nU JqPDPtRhuWtQG3RArsL6ch7QvM4NVzqf/oGmQer8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727720AbfFIC1b (ORCPT ); Sat, 8 Jun 2019 22:27:31 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:55554 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727423AbfFIC1a (ORCPT ); Sat, 8 Jun 2019 22:27:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=JZ87rVtdmY1eGd95PUVDy3tMWfEEw5cY4NhGsls2pmY=; b=ImsGyEdVwmdY18tprDQ8Qq31ae oXykcOQ6QYWkJizsOvePs52za/8CVmfBUfJRsgjzg6SJhR14Blf90U9OL2Hn3rPLFzGdaCXI+pB6u 94vW6Gu9zcWbXU1qSN2XzXFBZwlJ/IyTDz914oeTFfbLQXBlHZ/v8VLrnmAVWD5j7eP8f3f3Fe7iw Dv0jGrii+sa9m1vAzeXx65oLKVo4YG0did7P38Vn0IK5HunLV9YOtlRUhbAlBqC8isOSFy3WnbBJ7 7cxNyVpPTHxX3Lh+T1aq2QJVQEWNkAxkQ+cvbUgOfsb5tCAcVizTrwZADqrz4l4fmYQ7ugQ9mo5k4 OlcPOkfA==; Received: from 179.176.115.133.dynamic.adsl.gvt.net.br ([179.176.115.133] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hZnYO-0001mi-25; Sun, 09 Jun 2019 02:27:28 +0000 Received: from mchehab by bombadil.infradead.org with local (Exim 4.92) (envelope-from ) id 1hZnYK-0000IU-UH; Sat, 08 Jun 2019 23:27:24 -0300 From: Mauro Carvalho Chehab To: Linux Doc Mailing List Cc: Mauro Carvalho Chehab , Mauro Carvalho Chehab , linux-kernel@vger.kernel.org, Jonathan Corbet Subject: [PATCH v3 06/33] docs: cgroup-v1/blkio-controller.rst: add a note about CFQ scheduler Date: Sat, 8 Jun 2019 23:26:56 -0300 Message-Id: <6a36af686f9517d362c28424cfd0d3bd1729155b.1560045490.git.mchehab+samsung@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The CFQ scheduler was removed on this changeset: commit f382fb0bcef4c37dc049e9f6963e3baf204d815c Author: Jens Axboe Date: Fri Oct 12 10:14:46 2018 -0600 block: remove legacy IO schedulers Retain the deadline documentation, as that carries over to mq-deadline as well. Tested-by: Ming Lei Reviewed-by: Omar Sandoval Signed-off-by: Jens Axboe However, the cgroups-v1 documentation still mentions it and points to a removed file that used to belong to such scheduler. Add a note about that, as someone needs to fix the document pointing to another scheduler, if cgroups-v1 blockio is not dependent of CFQ scheduler. Signed-off-by: Mauro Carvalho Chehab --- Documentation/cgroup-v1/blkio-controller.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/cgroup-v1/blkio-controller.rst b/Documentation/cgroup-v1/blkio-controller.rst index 2c1b907afc14..2836c2c31e63 100644 --- a/Documentation/cgroup-v1/blkio-controller.rst +++ b/Documentation/cgroup-v1/blkio-controller.rst @@ -17,6 +17,13 @@ one is throttling policy which can be used to specify upper IO rate limits on devices. This policy is implemented in generic block layer and can be used on leaf nodes as well as higher level logical devices like device mapper. +.. note:: + + While this document mentions the CFQ scheduler, it got removed at + Kernel 4.20, as there are other schedulers that are more efficient. + + Someone needs to update this file in order to reflect such change. + HOWTO ===== Proportional Weight division of bandwidth -- 2.21.0