From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) (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 B64601F5821; Sun, 3 May 2026 15:09:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.79.88.28 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777820998; cv=none; b=bOuRoPRcMY16j0kQPLG2M2FUIA8uauXUCQkpDqZhohgCHYlJWuiNP8F7E2QC/0lXSICtp/HUQFsdUqhhTznvQi7KJjwnVNAPTh7PGxsFNVTxZA5D7uhazpQsin1yXtLk+6mW6sBNZDSkjtMOFNBOucC1XbHPQ3VTmy58v+HzKsQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777820998; c=relaxed/simple; bh=S9MOWDoWCQphaT/a8FrJsXB9PhKD6OAuD2KdbEgV6aM=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=QkO4+3d8BVzBAyUB+b/I5he4BxY6JuZBM8a5d+FjzSaVyH7/wCr3dzN/VPYw9wuTGHGF8Qb9SMqLQxj0mdq7TrGeQDXvmd43Fxo+rHeI+QuW6yASr6q3z1YKkdIa3/ehLt+iHEmsvPry2/CSnRqdrVz2ZUsEjXT0vjuDiveNOU4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net; spf=pass smtp.mailfrom=lwn.net; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b=NpIWO23S; arc=none smtp.client-ip=45.79.88.28 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lwn.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lwn.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lwn.net header.i=@lwn.net header.b="NpIWO23S" DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 7665841084 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1777820997; bh=x7eqm5Mt1/Zb1tlAKWtIPd71ktYeeQ5egMGjvXRoLns=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=NpIWO23SPW2i8NHmJIawk5mPhg/NriiQctLVAqQhIggg1dRGVuYRManmEv7n6Vxfx hEfunuNnky4emPN0jSxVyX6VioWTbT2d/VP5s3ZUJJ+BLTT3XPAsLrWf5rAr4GzVof 2hRAejx0XYo/QDX1OTAn00I3p9ZhLI93rAlsECG8G/WylSO1ZUkRmztZTi1ma9Ci+f XI+4FHJX4Uj1RnHohQAKnmUqf7YwgvCtR3jEWLIKEEZm2xNIb/Ao+nJ0Y+1ghkLYAZ w7u9okrXD/RaLRxuOzjdE50Nl+oRhSCyELWZZgO9ytjTsvv3rHurBvGnFf6G55VzMT fayf9ZCXoXlSQ== Received: from localhost (mdns.lwn.net [45.79.72.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 7665841084; Sun, 3 May 2026 15:09:56 +0000 (UTC) From: Jonathan Corbet To: Sebastian Andrzej Siewior , Frederic Weisbecker Cc: LKML , Gabriele Monaco , Ingo Molnar , Marcelo Tosatti , Marco Crivellari , Michal Hocko , "Paul E . McKenney" , Peter Zijlstra , Phil Auld , Steven Rostedt , Thomas Gleixner , Valentin Schneider , Vlastimil Babka , Waiman Long , linux-doc@vger.kernel.org, Bagas Sanjaya , Shuah Khan , John Ogness Subject: Re: [PATCH] Documentation/kernel-parameters: Remove "Deprecated" from isolcpus= In-Reply-To: <20260427150739.bwVmmkj2@linutronix.de> References: <20260427150739.bwVmmkj2@linutronix.de> Date: Sun, 03 May 2026 09:09:54 -0600 Message-ID: <87bjewcywt.fsf@trenco.lwn.net> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Sebastian Andrzej Siewior writes: > The isolcpus= option has been marked as deprecated in 2017. Back then it > was desired for the domain sub option to be configured dynamically at > runtime instead using this boot command line which provides a static > configuration. In the meantime this option was extended by other sub > options which don't have runtime counterpart or it does not make sense > to provide one. > > The deprecated part always referred to the default `domain' sub option > but it was not obvious. Also the reasoning behind the deprecation is > sort of dubious: There is nothing wrong with a static configuration if > there is no desired to reconfigure. This is useful on systems which > have one purpose and the CPU partition configuration is not changed for > the entire lifetime. > > Remove the "Deprecated" note. Remove the part of the description which > suggest to use cpuset.sched_load_balance and instead point to the > documentation file which explains how to use cpusets to configure this > at runtime. > > Signed-off-by: Sebastian Andrzej Siewior > --- > Documentation/admin-guide/kernel-parameters.txt | 10 ++++------ > 1 file changed, 4 insertions(+), 6 deletions(-) Applied, thanks. jon