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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D309C83F15 for ; Sun, 27 Aug 2023 08:36:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230283AbjH0Ifc (ORCPT ); Sun, 27 Aug 2023 04:35:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230296AbjH0IfQ (ORCPT ); Sun, 27 Aug 2023 04:35:16 -0400 Received: from wout1-smtp.messagingengine.com (wout1-smtp.messagingengine.com [64.147.123.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09A2E13E; Sun, 27 Aug 2023 01:35:12 -0700 (PDT) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.west.internal (Postfix) with ESMTP id B4C383200319; Sun, 27 Aug 2023 04:35:07 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Sun, 27 Aug 2023 04:35:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h=cc :cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm1; t=1693125307; x=1693211707; bh=Jv SLkiKnJg7r+Lmp4xfUHOcdesoZivHQDSlyjxiRtjQ=; b=vPqEkglFojsGGcLwBY lG2flpx9r8FmK5nCGywrpMX6PsceUo6YMrQv5fmBo9/gO8FzmGv9znw1P2Yt0jtD c5+R/u/yoDrT9KSfvQWhalUtinE+HIV+zSpAYoxAWisbOyuRKEaMvY5E/o8UCSrm RpRm3pQFxDacMfyK1PcCI+WbXz2DDzzgjLBo1/n150V3elpBEgllIEN9oI/3EzR0 Mp3uqCE3pnzLz/XTtdfVsInoFuXIAmSivUvDTfEi+tXp+pYef+22ZzUrWRtWOGr5 GaeliZwdz5J+FHRGsCwsO+ZxBT0DOYMBs2nvCz0nIFZ4EnvdXkHmfHldgnQY57H4 msrw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; t=1693125307; x=1693211707; bh=JvSLkiKnJg7r+ Lmp4xfUHOcdesoZivHQDSlyjxiRtjQ=; b=dw9ckfY77+MEfwvYwJUcSP4uls71J VtLEfkwJ8fKC9fY1xQcdppEfrpZUkwBOjqQyjDnagJ3PPReh25wkDsSLS+9ovDO8 N9p874zu3l+uWZfRhpeJsqtlz0X/I4E+7hipxtG8glESaI+Tcf0jflqr9LvEFyTQ oOG+jwwFx/AfvdhhVcdkcXPfQlsSsCPJrxjdNU2+8waAwtDrUws71DkJI+V6rvA6 7AgCy8tWblmYdWoAYfXeMd9HISZMGaGP/AHF6byvYwlbetg6aLgagHXO1e7gcJHQ CyINkG9SDT8HJjBWhRsckcuzKfuWQANtihzvUr2UVAUYXmEwY+EONbw6w== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedviedrudefvddgtdeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepfffhvfevuffkfhggtggujgesthdtredttddtvdenucfhrhhomhepifhrvghg ucfmjfcuoehgrhgvgheskhhrohgrhhdrtghomheqnecuggftrfgrthhtvghrnhepgeehue ehgfdtledutdelkeefgeejteegieekheefudeiffdvudeffeelvedttddvnecuffhomhgr ihhnpehkvghrnhgvlhdrohhrghenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmh epmhgrihhlfhhrohhmpehgrhgvgheskhhrohgrhhdrtghomh X-ME-Proxy: Feedback-ID: i787e41f1:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sun, 27 Aug 2023 04:35:05 -0400 (EDT) Date: Sun, 27 Aug 2023 10:34:53 +0200 From: Greg KH To: Qais Yousef Cc: stable@vger.kernel.org, Juri Lelli , Waiman Long , Tejun Heo , Dietmar Eggemann , Peter Zijlstra , Vincent Guittot , Ingo Molnar , Hao Luo , John Stultz , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/6] Backport rework of deadline bandwidth restoration for 6.4.y Message-ID: <2023082742-dad-henna-cb35@gregkh> References: <20230821221956.698117-1-qyousef@layalina.io> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230821221956.698117-1-qyousef@layalina.io> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 21, 2023 at 11:19:50PM +0100, Qais Yousef wrote: > This is a backport of the series that fixes the way deadline bandwidth > restoration is done which is causing noticeable delay on resume path. It also > converts the cpuset lock back into a mutex which some users on Android too. > I lack the details but AFAIU the read/write semaphore was slower on high > contention. > > Compile tested against some randconfig for different archs. Only boot tested on > x86 qemu. > > Based on v6.4.11 > > Original series: > > https://lore.kernel.org/lkml/20230508075854.17215-1-juri.lelli@redhat.com/ > > Thanks! All backports now queued up, thanks for doing this work! greg k-h