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 1125A1C5D44; Wed, 16 Jul 2025 13:40:52 +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=1752673255; cv=none; b=G8AH0d5z/LZLhaHpU7hlRytbYLChr6M9F5nMuivongO0pdjX6P+3DnA8k3ize0yAD7nxNf+1RUxid3sGY+Xd/9N4U7/VEFC1EJPBZDjRK/tc03vNt6WBR8BsEwyxtyS2wMd66M7Q0yEZtNlBEnZYJL0SuHaB3YjBoS/c/ac8cEg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752673255; c=relaxed/simple; bh=iw4PyieIQi6kuO7rXJ60xVYzYOooOntjGNeOsZ5zieo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=chRuZ+MB08PNu01F/DRC7sOc+4mCHfCT+1rj8ocMUm4JpG0T0sTGwZktY2KRNNRn6nP5pIU8IJL1oRbZEZwqSwC8G9OdpOPR2dvjrM8zfq1Gi07hvbZhY4jfTbLTEKTqb6RqNLcbcmxkLMQ56OC8mgvPEgET0pQ+rhuQ1ID7xnA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (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=GlX2PF9l; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (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="GlX2PF9l" 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=YJ8jj1+LfJaIWyKuEoAy6vQtxhqaDsoQByOxilP1PJs=; b=GlX2PF9lngS6r37wLOB9xFCW68 05mDzPOPkvdPjC8DpeDvRQDh8eEgmDYgwl6CE79Nj5HBQuiWuq9j1MAa4xC5zI6BHBdLfIEqaacaa 0WNqBvuyTn5az5Jbxv3Ra4uQlNXzSUc/OBfmjM/oMUfYKwCivizIjNyd70MiMDiOSicVskczf3V9+ sNTzSHQMz5g7X2dmPf+1cC35jAOrmbNkpFe5m79Dg2BgKMkz4AhqjaESsDZInVdrb00WfK0BsuEHS KNOATegszCEm5o/eXEhIliXIfYo2syxLsWMNtSx3UHj+zFGSCCSTjeWHWi7rfRVkIh4e9CskSNFkQ RlT0gZ3g==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1uc2NI-0000000GidN-2BZF; Wed, 16 Jul 2025 13:40:44 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 70F60300230; Wed, 16 Jul 2025 15:40:43 +0200 (CEST) Date: Wed, 16 Jul 2025 15:40:43 +0200 From: Peter Zijlstra To: Breno Leitao Cc: Andrea Righi , Tejun Heo , David Vernet , Changwoo Min , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org, kernel-team@meta.com, jake@hillion.co.uk Subject: Re: [PATCH] sched/ext: Suppress warning in __this_cpu_write() by disabling preemption Message-ID: <20250716134043.GA905792@noisy.programming.kicks-ass.net> References: <20250716-scx_warning-v1-1-0e814f78eb8c@debian.org> <20250716125128.GX905792@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: sched-ext@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Jul 16, 2025 at 06:20:02AM -0700, Breno Leitao wrote: > Hello Peter, > > On Wed, Jul 16, 2025 at 03:15:12PM +0200, Andrea Righi wrote: > > On Wed, Jul 16, 2025 at 02:51:28PM +0200, Peter Zijlstra wrote: > > > Also, I don't seem to have this scx_layered > > This is a rust scheduler that could be found at > https://github.com/sched-ext/scx/tree/main/scheds/rust/scx_layered Well, that just means the Changelog is entirely useless. Please always refer to in-tree code when describing a problem.