From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 ACFF137AA9E; Tue, 31 Mar 2026 09:36:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774949764; cv=none; b=o3lm7zc4egzl4WvELzmmhV49kqCW9Juqk0pbZVvFlIs6jSGQuFWblcVgOY97+lF1HzjiTqFuMCkQDs2Mf4IBrccx5XU9aquOdQi6C47bdb0VPjP6OUpZB7cdoaC4BMNPv3T2BWUVjqm1iqjdEL/dl+s/pc6VSWFZ8rNo+pqtEfo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774949764; c=relaxed/simple; bh=unm0mN5O/5fTupUJP5/43mpmznDqUzGRVDsTFh0CMvE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HzFpdbQqb3YYteOUrKT4o2ymCxadTKoTKyaRhLtVm4HtmIKjzGCicD3AUP3mKo/m5gvU0CcZ4whRkz+cdHw2hTV+Un8gWC4lf4hmu858a4D+9R2GyXwFDcP+0wUNGE4qISOwgRqva7BAiZ1IEJiacnr2NkfVtqHhtHc+S67QHsw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=UqSufg7e; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UqSufg7e" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CC742C19423; Tue, 31 Mar 2026 09:36:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774949764; bh=unm0mN5O/5fTupUJP5/43mpmznDqUzGRVDsTFh0CMvE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=UqSufg7ecQ+Wg2DuC+R/UR+odxiwJs2VYV4DwERoT3W8EmYBR8cHR6TV9nHDR5e9G DNWyNLpMyravuJGr8qGJLEkqqPWPDc8WRrUyHwvheRgvLWa4hru/o7xiaH2SxVtDps dGN9D1i8lfx9blhA+g66BOqVMoEHHohm+nM0nbCtS3gFune9sYQzK+SW9x38xKcc7b UFhDxkaNzAD1LwVq3ZS1NC7PMvMiJ0g60mTFEjqrJvsubEgFftMSvPWZ35E7Esdruh 7Io7X37tGiqX5l5+4flhDHiTwOchYDFE58LQhMws4ARzYSrE01fZ537tQlBt/Xklt+ FPD7dVClbx4sQ== Date: Tue, 31 Mar 2026 11:36:01 +0200 From: Frederic Weisbecker To: Qiliang Yuan Cc: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Thomas Gleixner , "Paul E. McKenney" , 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 03/15] sched/isolation: Separate housekeeping types in enum hk_type Message-ID: References: <20260325-dhei-v12-final-v1-0-919cca23cadf@gmail.com> <20260325-dhei-v12-final-v1-3-919cca23cadf@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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260325-dhei-v12-final-v1-3-919cca23cadf@gmail.com> Le Wed, Mar 25, 2026 at 05:09:34PM +0800, Qiliang Yuan a écrit : > Most kernel noise types (TICK, TIMER, RCU, etc.) are currently > aliased to a single HK_TYPE_KERNEL_NOISE enum value. This prevents > fine-grained runtime isolation control as all masks are forced to be > identical. For now we don't need finegrained runtime isolation. Only domain, nohz_full and managed_irq. If the need arise, we can make it more finegrained in the future. Thanks. -- Frederic Weisbecker SUSE Labs