From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B812F2E6CD9; Mon, 2 Feb 2026 20:05:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770062715; cv=none; b=QaykTBOq3huD+Z3JOxRoxSLUyOJi73LnYaH5KQIYFUiJWp6IUZY1RxeAvUcAh0MLBFDBQhhKfqKcse1dV0RLXsELuPI58N3Egkp0I/hcX/2t3V5T+7AqVSSD70b/sE1q4WVwjoP6LFjQuOyCuU+GZ7+B1sFl2SW4sC6Jhl0UuMQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770062715; c=relaxed/simple; bh=7tUAdfG6+/G0PkbLR5JQlA8/Gz/RMGzOtYhhqnrrimo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OA692PixQ1GPGneHGr4xUkPB4jlYVCppeDMkLVD500eX0m9/tpdpNncX4O0RgckSA2ZIq5auRS6kG1ApNnawY2v2BGMfaZh7NQSnCmK1uml1Cjpxa96HwhFjrM9u66DHu51vBDCGBlqTZ3JihERKMBIHfrss2aX0YixoICntH00= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=d6dVYSEn; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="d6dVYSEn" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=t7JLiGEHAJ1HuwqlJP1W6z7nGth+lLjp142+X35LU1w=; b=d6dVYSEnmH5NMKExwnhQ0cnuID HLTmwfKB79Z7TJcW97BTRZqh4rwwP5ZtRyF7NmzW2mLbtuXMXKSpictm6SPuZsALkJ1e7sDhs56Mg 2g4IFgTApJafmC3UZ8sdZisD8mvJbPA1sVGGd2Heyl3TpUsIQIRzw5KT+XrMHJcOGn3WlNh76OlYE r9FcY6b5vWAy0MWAY2IZKJ8+C3MAdjgv7hyZddCT9Iw+zqCaaQHxCELROduO/WacabystXwdKdBo+ 4kbJLjDhKUbwOA9HNWakaAI/OV3haz7L9exkMPE2cw2BV/eE7Sq2+FBIZGPCc66w150Nkg6ehJdRR CrruVLXQ==; Received: from 2001-1c00-8d85-5700-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:5700:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vn0AM-0000000Gzwo-1kPJ; Mon, 02 Feb 2026 20:04:58 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id B8D873008E2; Mon, 02 Feb 2026 21:04:57 +0100 (CET) Date: Mon, 2 Feb 2026 21:04:57 +0100 From: Peter Zijlstra To: Waiman Long Cc: Chen Ridong , Tejun Heo , Johannes Weiner , Michal =?iso-8859-1?Q?Koutn=FD?= , Ingo Molnar , Juri Lelli , Vincent Guittot , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Shuah Khan , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH/for-next v2 1/2] cgroup/cpuset: Defer housekeeping_update() call from CPU hotplug to workqueue Message-ID: <20260202200457.GJ1282955@noisy.programming.kicks-ass.net> References: <20260130154254.1422113-1-longman@redhat.com> <20260130154254.1422113-2-longman@redhat.com> <20260202130526.GE1395266@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Feb 02, 2026 at 01:21:43PM -0500, Waiman Long wrote: > Yes, I am going to remove cpuset_locked in the next version. As for > __guarded_by() annotation, I need to set up a clang environment that I can > use to test it before I will work on that. I usually just use gcc for my > compilation need. Debian experimental has clang-22, but there is also: https://github.com/llvm/llvm-project/releases/tag/llvmorg-22.1.0-rc2 See: Documentation/kbuild/llvm.rst