From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) (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 6CF3C34D901; Mon, 27 Apr 2026 16:49:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777308588; cv=none; b=utbzXILHHzN79JPSsUFeluiTRr37YelCIr2tJ373vjV5gl5lbIVev02WD4KiMVyLptDWCINuXrIicRMIBH+vcRX7ssZQZ6D3KbXyq/CJqxkPcnx8njDK9C2Wd552DSZEQmGWVIqr/OzjHBurzWF5zIZtOKDSZ+GtZgf4vuk8fb8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777308588; c=relaxed/simple; bh=GD+FWSrLGI2MA69Dj9+jLdx8fRUxq0j4IKM4VhNhstQ=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uagamFZrGKK1Z6LF1GGlVPK8gzT2/bcF9/dEl9h8WIyxfZ76nBHE7Z5KL4Wwr9YBsZFsd7x/bF8BghqDZNR+Y3PNQGTud3efs1NRl0H6BLffkHrFq+CcJCZ75iASZe9KyOFFsndwEqOJWdmrnIcxb+QnTQIBv5Gfv78w+Qc5rjg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf03.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 7F598C0360; Mon, 27 Apr 2026 16:49:42 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf03.hostedemail.com (Postfix) with ESMTPA id 0C4AF60011; Mon, 27 Apr 2026 16:49:37 +0000 (UTC) Date: Mon, 27 Apr 2026 12:49:50 -0400 From: Steven Rostedt To: Sebastian Andrzej Siewior Cc: Frederic Weisbecker , LKML , Gabriele Monaco , Ingo Molnar , Jonathan Corbet , Marcelo Tosatti , Marco Crivellari , Michal Hocko , "Paul E . McKenney" , Peter Zijlstra , Phil Auld , 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= Message-ID: <20260427124950.012d0d42@gandalf.local.home> In-Reply-To: <20260427150739.bwVmmkj2@linutronix.de> References: <20260427150739.bwVmmkj2@linutronix.de> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspamout07 X-Rspamd-Queue-Id: 0C4AF60011 X-Stat-Signature: ueewz8dhbfdriwgwh79ot1741w4ea5eh X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1+KrldTU+oRxmwita6pgl4nJxxng3F61ag= X-HE-Tag: 1777308577-201242 X-HE-Meta: U2FsdGVkX1+A+tRtBD/TBOHWy8sBfv3FhwYACpGyoKtmyrGDtX4tQ1IIEPYVeIykdryo0/O8UiJX0SXx6lOSdOsZucHE4gwpuwOcMnaUtAvOQDxWt03s+eo89N7zrTMEPfuDY46j2BCeXBxFNM+a0NU2tPLSMqqygy355NR2r/7Q/+/CgqXfdjoWMvfOYQi+cj11ake/SvV6s4NiG/FzTzjw2giOTdKtkIQxyiUNMir0L/dF3fDXF6fvkvKuShnQO1gsaaeYrMiZrp46OYR2xQMY1KlrVBj4yL1ecRP1txtzsBnIB2YJjw30JYsF1pv+Ns1GpkfNXi7Zhe9+KXR4nq81LQGFdGLeO+qlOeXQUR+XleqS1hUgD/xJHe2xqFK/ On Mon, 27 Apr 2026 17:07:39 +0200 Sebastian Andrzej Siewior wrote: > 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(-) Acked-by: Steven Rostedt -- Steve