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 BC07D72618; Sun, 12 Apr 2026 19:11:08 +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=1776021070; cv=none; b=iPQyHxvhwI82uY5G+IGp8edCeZvBtaGMIbjqqR3nQJeLdhLSkcGe3RmppnpFmr7qINQH250USV2ryri6vw2z2PlQ54aonFnTIBx39VwbIC+dbbUyH3uEcbs20RS65qqYS7oIXx+iQwyI53VBry5SYVxTWRC7wGhLoJkRDb9GifY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776021070; c=relaxed/simple; bh=+4a0Fz8BYDFZOunHwHJpOj2JPUz0WtvVrFS7Z/WTpLw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=sJco3zuHOarReQvAYrTpDVC/EaXSPpf7HRNTv5farRg3deieP0IFMW2cMWugwuwiPEmQP0f0LG6tmTTFQ1DZEFmdDLm41fxr8RBBcjfIs9yGwk1DyOtKiqZNeaI1rEElBbQbjsr8TjvmGX80wp2ayl8xdK4IfZTLuqMfetr3NY0= 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=faCL9vdB; 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="faCL9vdB" DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 32061410A1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1776021062; bh=4gfNsuuiRyvhYGF/CLP15c5u2ZySo9CYBw0qbBR6FUY=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=faCL9vdB2H+wZfNi1tGkxEydIPihBr7nqnxlcBAApFH7egQ3ib5edCzaxFb/WJXcx jPyBuVAIy8XBJaF1TNPWaDNcbdWTBe27RXALohO/VzmLAQhO1wa76PW7icTTto9gi0 rXR0uDRtNJjqn6Wsqe/8zrIC/lD+a4Xf7ROhfUMV/ik7eUDQPNyKY2Z/vmglgBjAzs b5QEnQjGELQWzJ72FZhy6wdPgV+Tlnyk4Y8S7xmS+89KU0Wse+a/mpNcplbidcSFNk QzXX6NFr90H4TMrjDQ7f+7Zldt5ls/MlA8i2U3+9Ew6zl2ZYOfwhoLbwt2ICCwW6JU oGaGM24XRKgBw== Received: from localhost (unknown [IPv6:2601:280:4600:27b::1fe]) (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 32061410A1; Sun, 12 Apr 2026 19:11:02 +0000 (UTC) From: Jonathan Corbet To: Frederic Weisbecker , LKML Cc: Frederic Weisbecker , Anna-Maria Behnsen , 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, Sebastian Andrzej Siewior , Bagas Sanjaya Subject: Re: [PATCH v3] doc: Add CPU Isolation documentation In-Reply-To: <20260402094749.18879-1-frederic@kernel.org> References: <20260402094749.18879-1-frederic@kernel.org> Date: Sun, 12 Apr 2026 13:11:01 -0600 Message-ID: <87o6joyoxm.fsf@trenco.lwn.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Frederic Weisbecker writes: > nohz_full was introduced in v3.10 in 2013, which means this > documentation is overdue for 13 years. I've seen worse :) > 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. > > Acked-by: Waiman Long > Reviewed-by: Valentin Schneider > Reviewed-by: Sebastian Andrzej Siewior > Signed-off-by: Frederic Weisbecker > --- > v3: Apply suggestions from Randy, Steven, Valentin, Waiman and also Sashiko! > > Documentation/admin-guide/cpu-isolation.rst | 357 ++++++++++++++++++++ > Documentation/admin-guide/index.rst | 1 + > 2 files changed, 358 insertions(+) > create mode 100644 Documentation/admin-guide/cpu-isolation.rst Applied, thanks. jon