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 1B25DEB64D7 for ; Mon, 26 Jun 2023 20:54:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230361AbjFZUyu (ORCPT ); Mon, 26 Jun 2023 16:54:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229775AbjFZUys (ORCPT ); Mon, 26 Jun 2023 16:54:48 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0B579E for ; Mon, 26 Jun 2023 13:54:47 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id d2e1a72fcca58-666eb03457cso1825792b3a.1 for ; Mon, 26 Jun 2023 13:54:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687812887; x=1690404887; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=CYCMueTG15Qd1hUiZSyBUCrvl3HLbRhK1eO0hU0rYmo=; b=eN4qrz+mMTFYIEfFEyq1QI2MWjiI+eEvtZhA88aK8RuBZimsVRiixPZ7go+NmPC+S+ OitaiLPChpCnBz7nFnfrLbxLiV2aQ0qbnVn4Yz1QfGhLZEyV+w9xru5+alYYx/OOsbzV i2klmHgdT2HHG947IVXKDyis1VWjM5PtFH/OMaf2YbYutHuUakl2O8SfXm7tF2diW1RS INPrzAwtUjgA50heG2jeTYAKST8UUGXQxmB1QB5YN7jeSwnmvPDoark3AgXaNF2E+7e6 ib3GY7cJKytz4uRqiC/Yv0DQGxueK5QfoNc+1vg8BoUQ9fT7C0BiQUUk8QF+QrP1qVME ExIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687812887; x=1690404887; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:to:from:date:sender:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=CYCMueTG15Qd1hUiZSyBUCrvl3HLbRhK1eO0hU0rYmo=; b=GOfnni+JGpe8Qs5x6El0LcGKTQSPtyGGWPOfYFpLDRFQvUmj1caccm0+UlFv+v58U7 uTiPmTWHNZ+1olK/4ocBTBczjBxXW/1rpH+8F8v4dBfEWcE6hpTirfEBcQXsr+tgju2C +czwtSNJX7ize7s3Q6p+O8GuIn3TPdfbb7PlnMWt4YluqMIWid/QF+02q696mMnYeQAX DGtGfhOb5KFn0aDnixUcWc1qf2UfJa3EMv2pJEaGP73CH9vGk9f8KxTlMCN4B2MZsFtR jBOtHJJllW7K9ZsY+vfOiieBOFBB8DzMz0oyNaYiFGxi72f0DiBJTjcF7oW4JXbWSGmn JcyA== X-Gm-Message-State: AC+VfDxbIRZqSHsLVD++YFDwMVKWp/3jXTK3y4JWijs0l3jBwT53OMeg 6AMcaejegy/10D+19tJyXHE= X-Google-Smtp-Source: ACHHUZ4UJpj0J5WHUC3A67nRWAG5f+vx1KatSNGWN/rxZdlJRnReWXk9i2msPbsvaNUXKbhz0ZEz6g== X-Received: by 2002:a05:6a20:4e06:b0:125:56d8:6724 with SMTP id gk6-20020a056a204e0600b0012556d86724mr7964586pzb.58.1687812886805; Mon, 26 Jun 2023 13:54:46 -0700 (PDT) Received: from localhost (dhcp-72-235-13-41.hawaiiantel.net. [72.235.13.41]) by smtp.gmail.com with ESMTPSA id j6-20020aa78006000000b00643355ff6a6sm4354053pfi.99.2023.06.26.13.54.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jun 2023 13:54:46 -0700 (PDT) Sender: Tejun Heo Date: Mon, 26 Jun 2023 10:54:46 -1000 From: Tejun Heo To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, linux-kernel@vger.kernel.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, fuyuanli@didiglobal.com, zwp10758@gmail.com, zyhtheonly@gmail.com, zyhtheonly@yeah.net Subject: Re: [PATCH v3] sched/isolation: add a workqueue parameter onto isolcpus to constrain unbound CPUs Message-ID: References: <20230622032133.GA29012@didi-ThinkCentre-M930t-N000> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230622032133.GA29012@didi-ThinkCentre-M930t-N000> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 22, 2023 at 11:22:17AM +0800, tiozhang wrote: > Motivation of doing this is to better improve boot times for devices when > we want to prevent our workqueue works from running on some specific CPUs, > i,e, some CPUs are busy with interrupts. > > Also remove HK_FLAG_WQ from nohz_full to prevent nohz_full overriding > workqueue's cpu config. > > Suggested-by: Tejun Heo > Signed-off-by: tiozhang Let's just do the workqueue specific parameter. I'll apply the other one to the workqueue branch after the merge window. Thanks. -- tejun