From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-203.mta1.migadu.com [95.215.58.203]) (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 9B9333B0597 for ; Tue, 22 Sep 2026 03:22:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.203 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790047342; cv=none; b=NjQRzJSn2abAuiC+7xAlxTnh51ailL65SDHTlCaY+X5yuDukwsQ4wCd0a53D3GJgF0pxc91b4h8C9R2XLOfVp+QOLGP4ZcriYD21C1CRlBQLwxRmRSkoY40khvCCfvcG31tiZorFchUxAWsZ07n961rRIuJymDfJ0Jktbxk9vTo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790047342; c=relaxed/simple; bh=D6xp+DQw2/JOLv/xyLpiYWzZgQK22tQnX4ABmanyYO8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=GhgkO/RmaPXGd2eaGeYFxtSkn0WtBSzNWiPKX54gtWsiNRsJ2xnIWCOu6SfyUdkZrXhKJUrI9MarreX6n1V1vEKspSo6D9+aWBxwPnlYhOLp+jwLHp9DgB5roKAwcKos72yhFQ4m8UnbM3nZk042f+uGGKL4dCnFff5ewrgeNeI= 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=PpArhTp0; arc=none smtp.client-ip=95.215.58.203 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="PpArhTp0" X-Envelope-To: cgroups@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=D6xp+DQw2/JOLv/xyLpiYWzZgQK22tQnX4ABmanyYO8=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1790047337; v=1; x=1790652137; b=PpArhTp0zGXteX0eGj7GdprIMBe/qJfluR7VxfAO8MnEdXzqarPeiSrFppWaHOMBgtMgPW6v DdcpYGu8ZnswjcLwKCs+Rk9WP8GIAMK8CmUAIGlOLUQOIXqcjxy5iM8G5QbeeEVFEwOdFmjAi3r rjqagDhZGL7uUgySx6dp3Y2A= X-Envelope-To: cgroups@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id de3b09413563fae3; Tue, 22 Sep 2026 03:22:17 +0000 X-Mizu-Trace-ID: de3b09413563fae3 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 v2 0/2] docs: cgroup-v2: Correct cpuset CPU descriptions Date: Tue, 22 Sep 2026 11:21:28 +0800 Message-ID: <20260922032130.33777-1-guopeng.zhang@linux.dev> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: cgroups@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 v1: - Reword the cpuset.cpus.isolated description as suggested, while specifying the domain flag of isolcpus. - Add examples of the cpuset.cpus.effective relationship for member or invalid partition roots and for valid partition roots. - Add the Suggested-by tags and the Reviewed-by tag. 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 | 59 ++++++++++++++++++++----- 1 file changed, 48 insertions(+), 11 deletions(-) -- 2.43.0