From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-100.mta0.migadu.com [91.218.175.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 99DF64432F2 for ; Tue, 22 Sep 2026 09:20:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.100 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790068853; cv=none; b=hDqWz2AM0uEpiuWrdkt6SOdXRvw6mp3B0b+aiE/e+lZ+Ox5JL0fp/b0vawlxsmsHUNWGH4ABF5KoF3FxVf6OoUZMh1msJK1PLS1m48LHZ3OxNi+CUxI9lWKGyRmV0pjdRQE8KzgzH2wgI4yhaxHy+XxhQDV6sG2KZg7zYV4tSmM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790068853; c=relaxed/simple; bh=tfcR+1vIe3NIrCiR3cbKx8vH9DZhm95Ra8XfKKaDhrk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=WZfVDwexmwETCoubDUwyn4w9t1jAu8UpeMzeRioknAepEI9t4LqrvPAZFzFhxcA6nIv6RU0clVq28//vNBxUi73mZZ1RpwWACdib3iCXT/agk0wyOoygB/Mc7HPtGJj0A0LFMN44vcRIzA0uFVbb/BV5pZZcXQMPyogRxaqd9Ww= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=PN0NBc35; arc=none smtp.client-ip=91.218.175.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="PN0NBc35" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=tfcR+1vIe3NIrCiR3cbKx8vH9DZhm95Ra8XfKKaDhrk=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1790068849; v=1; x=1790673649; b=PN0NBc35Ik/1RLL/Tpi6kz14vgblvJp5uNw9LkijgMvdHaWQLWjiOerRGV6F+b1OKw2+WioU pY3RHZJ/kFjNMsRbKoQiIG3nl8GDWP8O7DtpQu8HyQEnB98NqZT5vhjTj0Kl/kNfFdNjld9akaO zPjiiFuPnn7RUbV7mtVbK7Ac= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 1845d1b952c6f2f1; Tue, 22 Sep 2026 09:20:49 +0000 X-Mizu-Trace-ID: 1845d1b952c6f2f1 X-Migadu-Flow: FLOW_OUT From: Guopeng Zhang To: Waiman Long , Ridong Chen Cc: Tejun Heo , Johannes Weiner , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Jonathan Corbet , Shuah Khan , cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Guopeng Zhang Subject: [PATCH v3 0/2] docs: cgroup-v2: Correct cpuset CPU descriptions Date: Tue, 22 Sep 2026 17:20:32 +0800 Message-ID: <20260922092034.68840-1-guopeng.zhang@linux.dev> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Guopeng Zhang The cpuset interface documentation says cpuset.cpus.isolated is empty unless an isolated partition exists, omitting CPUs isolated at boot with isolcpus=domain. Its cpuset.cpus.effective description also assumes CPUs come from the immediate parent and are normally a subset of cpuset.cpus, which is not always true for valid non-root partition roots. Update both descriptions to match the existing behavior. Changes since v2: - Update the valid partition root example to show that an offline CPU can remain in cpuset.cpus.exclusive.effective while being excluded from cpuset.cpus.effective. - Add the Reviewed-by tag to patch 2. - Patch 1 is unchanged. Guopeng Zhang (2): docs: cgroup-v2: Describe boot-isolated CPUs in cpuset.cpus.isolated docs: cgroup-v2: Describe effective CPUs of partition roots Documentation/admin-guide/cgroup-v2.rst | 62 ++++++++++++++++++++----- 1 file changed, 51 insertions(+), 11 deletions(-) -- 2.43.0