From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 D178B257843; Wed, 25 Mar 2026 13:58:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.92.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774447116; cv=none; b=NkXqb1xBMMqVlWEvR4jgvEGLWfGeY2WmIfS4ilOKljB+vu8KZMGaysx1bXD8M0xPRTjjJDKwnBzQ/00xBbb42MoDYZQPakOPVRaTMXa69Dh49ekBzJ4ZFugTt0HT3fEAW3Vf/mkKedfreR/NTkEDB1V8Rk4IgWxpRl6arT47+14= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774447116; c=relaxed/simple; bh=0Wh5nuRIVjmmR3h1DHbl/7y/dEHsy8Ic5tYZGLWZU9U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aWLhOLlprCUZ+921QthWwYvgalYfS7Gv64PWG4Lae/TgJQNccPBGiq73pp+k7h7wShew7av/vdCQLfeM+NJnzL8hE4wfRu3UtB8IzsnjpcYFWMNMosAWP9xUj5Wfm1uE81YgNOxuhvZ4c82bVD9TkIuY4PCUidcQNJrtjReM0pY= 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=JR3OsthR; arc=none smtp.client-ip=90.155.92.199 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="JR3OsthR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; 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=0Wh5nuRIVjmmR3h1DHbl/7y/dEHsy8Ic5tYZGLWZU9U=; b=JR3OsthRB0FWUAQKcRzH6GOUYD G0lJgZ6r49/3yIaaPiy0bfMepMP+55l5tq1iETprIi/AociiRYj0JfsoypiQx3Tg26VUcFGELYHHS ILSSQoxQaRwl9QkCPKJrSYPQp2ttw+Q+8kEyum2trVSUYWs5Pfu84pm4VP5Ab/EpNNEn+ikvsgomU CH/xmi7rSzUQyoaKTRDsIE7gYzYiu7XcOtLY1oAVwLv6fQO4vMmsOBNNQXyhPlKHMsx3rcyM74MWM 7T3s03vGBYY1zVxVPvSjn9SpMc4jFxqbYa1g2+Klc7hHBqXO1uUB7CoeXfOUSrCx6cJ2wfHMk7S1j v8BKDhIQ==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5OkY-00000006Hv5-1bO9; Wed, 25 Mar 2026 13:58:22 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id D1C15300400; Wed, 25 Mar 2026 14:58:21 +0100 (CET) Date: Wed, 25 Mar 2026 14:58:21 +0100 From: Peter Zijlstra To: Qiliang Yuan Cc: Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Thomas Gleixner , "Paul E. McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Tejun Heo , Andrew Morton , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Anna-Maria Behnsen , Ingo Molnar , Shuah Khan , linux-kernel@vger.kernel.org, rcu@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH 02/15] sched/isolation: Introduce housekeeping notifier infrastructure Message-ID: <20260325135821.GA3738786@noisy.programming.kicks-ass.net> References: <20260325-dhei-v12-final-v1-0-919cca23cadf@gmail.com> <20260325-dhei-v12-final-v1-2-919cca23cadf@gmail.com> Precedence: bulk X-Mailing-List: rcu@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: <20260325-dhei-v12-final-v1-2-919cca23cadf@gmail.com> On Wed, Mar 25, 2026 at 05:09:33PM +0800, Qiliang Yuan wrote: > Subsystems currently rely on static housekeeping masks determined at > boot. Supporting runtime reconfiguration (DHEI) requires a mechanism > to broadcast mask changes to affected kernel components. Can we eradicate the whole DHEI naming please? It makes no sense.