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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 78D6DC10F11 for ; Mon, 22 Apr 2019 13:35:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4B18520685 for ; Mon, 22 Apr 2019 13:35:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555940116; bh=XQ6yzN/u1t+GCRyL/ZXiB35SNG7OfY7C42yhiZfCd7U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=JQqBy8VP3xM4kMBsc2ESGyws+dL/Bh/MFwbLk29SHJ3fn2NJd3Qjf94bE203wF28h bx3jj/j7pwB+PV8SjLiVjkcOJA4paKtaXkD+Ly0BsiWC7N/rtsvUEWRdUTLTyyr3KI LuN3B/29V6cc45TH6sZDLz4eRTFnXlYAQcUdSp54= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727467AbfDVN2R (ORCPT ); Mon, 22 Apr 2019 09:28:17 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:36808 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726430AbfDVN2N (ORCPT ); Mon, 22 Apr 2019 09:28:13 -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=4jPg5SBmwMZUCmAGir71RBysjFB9d//84iaAGU/28zM=; b=s/3Kk5jqzM9zkN+D3VPfwTJRnF StaInjD5ZoZaj4mifr/i87pvBdRHdN3GnQw9N+y5NvqtXmn9Nx169AvJJSDBkejYspZLvrBzCULa9 fK/LY07mnjgJoj7bXCzXMyycvsJ+9ksygmJW0t/i8THfpoopmbflUJV31rXh/I3uDhn+/X1wMPq+3 +SeR/qbsPIeVp1M8c4s6Xau1nWiWmYARnxDFCS/Bz0XasSEx5xG5mmZPYaoIU++Hlr1tqbfN/XBnH WmC4B5SFAz2RXpTAjg5tS5h0kLYRz6ogEcnXOtw3vYCv0kJSbx/ebrvy6aO7TpWxFGxkG7ptZ4lBo boVqzH7w==; Received: from 179.176.125.229.dynamic.adsl.gvt.net.br ([179.176.125.229] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1hIYzU-0005HX-KS; Mon, 22 Apr 2019 13:28:12 +0000 Received: from mchehab by bombadil.infradead.org with local (Exim 4.92) (envelope-from ) id 1hIYzS-0005k1-G2; Mon, 22 Apr 2019 10:28:10 -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 v2 09/79] docs: cgroup-v1/blkio-controller.rst: add a note about CFQ scheduler Date: Mon, 22 Apr 2019 10:26:58 -0300 Message-Id: <9ab0a2c2c084dce030fe8944e2441df14cab3a6a.1555938375.git.mchehab+samsung@kernel.org> X-Mailer: git-send-email 2.20.1 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 -- 2.20.1