From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AC56C27FD43; Thu, 1 Jan 2026 22:15:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767305719; cv=none; b=h65y2JD5GiMdGjJD7TW1o4FaJlX5ilTOFbu9IUZukotoumT9yMrF11nYSc1/0/0I/ODyZMz1i5cN9zRWTippreZ8OhGUbqcVjCkve5s3+UgGKB8CEmrGCUd2ptnrTdiPhg4QGbrgjyOSwYI3diEh2FF2qwRoGas0DILC7i90z/c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767305719; c=relaxed/simple; bh=gHL1k3Ce/0Yqnu3RKEhMFCTtXjaAjQ9JVob0E5Uoa3s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ohtXE3HXMBzNG5DwIFRPUGyaUZVwUYsx8CzQ2Lw0vK66ubQRHcW5AwoYUZE91z3Ibe1Vk6rDBHJlXqlAM+aoQr0Irig4u8BIo05kRDsaQiM3R8w+adfii+Iux5xAxeX6CP+Qt/gYT7vdTif+FfKOiEEREvn8WYWptgL/TnC8QWo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rGzeR2j4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rGzeR2j4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C277C116D0; Thu, 1 Jan 2026 22:15:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767305719; bh=gHL1k3Ce/0Yqnu3RKEhMFCTtXjaAjQ9JVob0E5Uoa3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rGzeR2j4rIaZ/Ba3+tEX6uButAsa/DeTyFZ/qjWHwok0cL1okdkghC1KZAaPrZp0q mfWsThlZYCgTqIaay4c3bwM47lAtXt+WzoxXr/DRH5Et9ydvT7Pu4ei2X5wjV9AxHA dFnsWRWLPe1KcJuDdIklMPPQp0cvCwu+GCWTlHWqn0B1vpor2tzZywc91kiABl8iKs YBO6MC2AEqYWd0yHUjy2+T1E1ucmMfomGE3kA7Zm2U1nRI1Xk3wIAHNfdLkoAXnsRZ 3qMTyge8nki18nhfgnzrUVMZarInnosGSTjx5GDRWOBBUVeMhrYFL/xY8k+FpWop4O 2BNn6OPJ4Bz7g== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Andrew Morton , Bjorn Helgaas , Catalin Marinas , Chen Ridong , Danilo Krummrich , "David S . Miller" , Eric Dumazet , Gabriele Monaco , Greg Kroah-Hartman , Ingo Molnar , Jakub Kicinski , Jens Axboe , Johannes Weiner , Lai Jiangshan , Marco Crivellari , Michal Hocko , Muchun Song , Paolo Abeni , Peter Zijlstra , Phil Auld , "Rafael J . Wysocki" , Roman Gushchin , Shakeel Butt , Simon Horman , Tejun Heo , Thomas Gleixner , Vlastimil Babka , Waiman Long , Will Deacon , cgroups@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 08/33] net: Keep ignoring isolated cpuset change Date: Thu, 1 Jan 2026 23:13:33 +0100 Message-ID: <20260101221359.22298-9-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260101221359.22298-1-frederic@kernel.org> References: <20260101221359.22298-1-frederic@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit RPS cpumask can be overriden through sysfs/syctl. The boot defined isolated CPUs are then excluded from that cpumask. However HK_TYPE_DOMAIN will soon integrate cpuset isolated CPUs updates and the RPS infrastructure needs more thoughts to be able to propagate such changes and synchronize against them. Keep handling only what was passed through "isolcpus=" for now. Signed-off-by: Frederic Weisbecker --- net/core/net-sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index ca878525ad7c..07624b682b08 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -1022,7 +1022,7 @@ static int netdev_rx_queue_set_rps_mask(struct netdev_rx_queue *queue, int rps_cpumask_housekeeping(struct cpumask *mask) { if (!cpumask_empty(mask)) { - cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_DOMAIN)); + cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_DOMAIN_BOOT)); cpumask_and(mask, mask, housekeeping_cpumask(HK_TYPE_WQ)); if (cpumask_empty(mask)) return -EINVAL; -- 2.51.1