From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 2035433C51A for ; Fri, 27 Mar 2026 16:01:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774627308; cv=none; b=WznkUPdZxkJ6VrX2iDAyz7ORmQu+M893Qe/mEQVrauNkyHUALFssKMvFsclhfBb++x8o0eDrZArmclQVrKblrHYu2cQpCHuR6bXbHl/8G2Q8fhtBA4lGBfYchwInUv785cc4W9vRhqrcGjb8F7phGJ/HwgA8g17TwAhBI/8n2MQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774627308; c=relaxed/simple; bh=X5i2PWRIsarcjL5H2zSKWHQQT9H3uhcZxxdmJW5mvyE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=o2Fgk8mLYYN8nciF79/AxD7x5ZmbLsbbspMiFw+UgEW8VjjaiWqeJqhuudyvtOtGX5eZY07XcE3b0bHpEr4z0yKHhcVt7x0oD3S4ESJ9YSpqRhVKT3f42I0YdphYTUmDPlN9iM0Vzj0PEV8wIeNzXwDSlkDMLNtwCcpaxR0fQ7A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=GutOvsV9; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=VCHDr57f; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="GutOvsV9"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="VCHDr57f" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774627301; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=X5i2PWRIsarcjL5H2zSKWHQQT9H3uhcZxxdmJW5mvyE=; b=GutOvsV9aDajwH93rghP4hWmwKKqjhmIXmp9yTsrYsciCG92vbG/+vSCy8TGh8lvISg+1U hC5b5QP05k69aGrfTgDZlhSU9rEL9FT+eZx9iB+CZ7MOr7uUe2239R+XmX0GNso1opAz+M dXoUnOwbib27D9uiawcuRc4U363sZAY= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-423-5Wrj8eNwNmSLtTG5WwlEeA-1; Fri, 27 Mar 2026 12:01:40 -0400 X-MC-Unique: 5Wrj8eNwNmSLtTG5WwlEeA-1 X-Mimecast-MFC-AGG-ID: 5Wrj8eNwNmSLtTG5WwlEeA_1774627299 Received: by mail-ej1-f72.google.com with SMTP id a640c23a62f3a-b8704795d25so241954166b.2 for ; Fri, 27 Mar 2026 09:01:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1774627299; x=1775232099; darn=vger.kernel.org; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:from:to:cc:subject:date:message-id:reply-to; bh=X5i2PWRIsarcjL5H2zSKWHQQT9H3uhcZxxdmJW5mvyE=; b=VCHDr57fzJ9jbucU+SL5EgQocnJ1XXkxtCwHHQbd5eIyEK6shqRGu1vg1JGHXdHbDE hsrJOVMy+KNbj1ofIIfFLjlE5qUkpQu3RjQRfbKhDCd3a2P7Nvc7I5BdEBKrTOEKdVri ZiCiOOAtFnjitOW6S85O6pkJ36OgPbxx/WqeK3i3ouuGOdu1V5o3KfYW4dd0k+sDaEIj WeDdryJzIiOJg3ogaOiMacCwGwvQ4+gY2uWqgm5659/D3sOs7A+MfYXNvLSOBCN4F4M3 TUmIWI+vw2XJDfuEK1RPvoH00AR9TVTwmeZ3hc6uZr9VLmcjXh964ZDxKo7fmFMyaR0l A08Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774627299; x=1775232099; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=X5i2PWRIsarcjL5H2zSKWHQQT9H3uhcZxxdmJW5mvyE=; b=YbrywFl05N8gEsKV2YEAHaafGFV/9j2wl1s5CInfWiDQ/uiRzZcD7qAwmM053gSzou ovS2+EKW7xUtHKdkDPpSWozjgb5iEBn+rFAcH9UxHDDBEAtK7dLbHwS/qvvL58NQbO2X gzYFjTvcKtSpXglQ0YcYq2NBkOcrQnxsp/V4sLJHWLJL+PAWUtoJ2ntsDULb9hPPpfnD NzJ+7YEDiGb0DAJMus3qxpdktKgipBef0ZGRO+6MfiuBNhWfkD+IGekofy2kYKd7rjKG QVV3gDWKSR6fC0lcwep1pf6fe7xNYqHPrSneneVVND9RPgT5F/eZlmOSX4gyorqQ75nl sqKw== X-Forwarded-Encrypted: i=1; AJvYcCX74AKSdY0ZIPVafdJoAK5LMOFzyBkPkPFKi4r9wqaWlwws9CaZzqE4gnk+EivQxxEvlCZIEmMczbameq4=@vger.kernel.org X-Gm-Message-State: AOJu0YykOEMq0l+8XmMjV+MB3DvDANv1QRCg4UVbTyzfo5CvL9BZhWLq vOuEKSfCiJtBZbbVhHu+VJe8IfuMNnh2tmKqmy0fViLKbjrKxoZxdzvIKiAYPNlOngt0iTFeGGa G/sI8zyYCRF8KhR++kioirxnomB8sQ+vofcbvowy7VB1otpTJmpSn1HzYSVi+LHL3fw== X-Gm-Gg: ATEYQzz0J665+fnTXvYrvxootRIs2J8VNENaVDdcfnNGoVW6FzYrK5bwWJAPb7WUHGB suHDV5Kp3O7fbtRHddaq6NCYwPw307Xk4J/y0IiVIJkTOZfmkqDfsjxcnF4QGCAuaZtw0WKtB3I NujsRDrZssTM4gU6es2e1lC7Ml0Evba1N8Ncks56MtxhSwOPh4/GhTgDn27/zboEUOZw1f7jO8a x+Ym07w9U77lpkrApPyhPIAt57tqoGAUaHQPXW06/cyaeOUsWQK0yffwinzQ6ztTjWxu2h5cXlO ZHitohfjvTgH4N+gNaE/ATHDt/+b5o3iCAdvEROQX+sTRgEsRsyxGg8q+e/tFdj1rButcMMrfqA H/4y7W+wuSNBAQgmbvqCMpBvaRPB9cBD+FXhrPFbBzAblrUpHJRmqi+ciaSMe8y3nGGW02dJp3s 1gSxs+3lw= X-Received: by 2002:a17:907:7b06:b0:b98:443:6f33 with SMTP id a640c23a62f3a-b9b509a1d23mr202510866b.51.1774627298601; Fri, 27 Mar 2026 09:01:38 -0700 (PDT) X-Received: by 2002:a17:907:7b06:b0:b98:443:6f33 with SMTP id a640c23a62f3a-b9b509a1d23mr202506566b.51.1774627298104; Fri, 27 Mar 2026 09:01:38 -0700 (PDT) Received: from vschneid-thinkpadt14sgen2i.remote.csb (213-44-135-146.abo.bbox.fr. [213.44.135.146]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43b919588e6sm14987755f8f.16.2026.03.27.09.01.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Mar 2026 09:01:37 -0700 (PDT) From: Valentin Schneider To: Frederic Weisbecker , LKML Cc: Frederic Weisbecker , Anna-Maria Behnsen , Gabriele Monaco , Ingo Molnar , Jonathan Corbet , Marcelo Tosatti , Marco Crivellari , Michal Hocko , "Paul E . McKenney" , Peter Zijlstra , Phil Auld , Steven Rostedt , Thomas Gleixner , Vlastimil Babka , Waiman Long , linux-doc@vger.kernel.org, Sebastian Andrzej Siewior , Bagas Sanjaya Subject: Re: [PATCH v2] doc: Add CPU Isolation documentation In-Reply-To: <20260326140055.41555-1-frederic@kernel.org> References: <20260326140055.41555-1-frederic@kernel.org> Date: Fri, 27 Mar 2026 17:01:35 +0100 Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On 26/03/26 15:00, Frederic Weisbecker wrote: > nohz_full was introduced in v3.10 in 2013, which means this > documentation is overdue for 13 years. > > Fortunately Paul wrote a part of the needed documentation a while ago, > especially concerning nohz_full in Documentation/timers/no_hz.rst and > also about per-CPU kthreads in > Documentation/admin-guide/kernel-per-CPU-kthreads.rst > > Introduce a new page that gives an overview of CPU isolation in general. > > Signed-off-by: Frederic Weisbecker With what's already been brought up: Reviewed-by: Valentin Schneider