From nobody Mon Apr 6 10:30:22 2026 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 CEAAA309DD8; Mon, 13 Oct 2025 20:33:01 +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=1760387581; cv=none; b=tYS4QM+T/6rQiPA3KFB/whsuszJuYdM2OJE7WOGUHPmVCJniQpU7EVpj7Y4U86jUbwuZFPEQVDH/jvEyJ+23e7UbHZVqPZOU+BzPQQNbIsQy99aeWF+WlXuEh8AbS/V7wHgFKS256d5+TC6je1XZ3cH+EOVjWSRRCcpAGNUFu80= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760387581; c=relaxed/simple; bh=27i30BHoqn/BGY6ARghdzM2ne1ZlXRlOL17r9Y9xQIc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GvVMhSsOpxxNWJ7hhZpzlq+tYDuX/TFyYjYaN8t/k/8vqD21ZdNsxiBQ43hjWFW91x5Ca9oLAyf1UIDLAKyS5ZPgf1QE/3oZFKXynbHMnUDGz2Nly83l1vYRhAehxit16b5/JExCbzUl5cuOGerXaHQgmFueSsF1iSkDDBE8Zv4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vj29vz4R; 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="Vj29vz4R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1133AC4CEE7; Mon, 13 Oct 2025 20:32:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760387581; bh=27i30BHoqn/BGY6ARghdzM2ne1ZlXRlOL17r9Y9xQIc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vj29vz4RtllKnPy0syNL8X4XKS9GnmMDyBglO6Mvs6AEqCeZ4A+cRIUSI0tGlwCnt PwUyOwph9MHmEq6tkTfGZGSvXXFyEsGFisJCfaVfwvBHZVnXfIfMaXWlKxWZjTE+Mu rSl4X5CTj0dVqyEdrRXnHJ/jjLtpcY6M4DNR+jUkcuNxlbRGf3uy7rprC9AdoCyGub 79TKLcYUo5gwQtgWbpOo1+XqMdIVKz9H2zaKpX8ZL8CyntIp0I8zGsNiORh4ym2ER1 c6fod11QySs2FyOLX+I23bb9hrrBYQ9+A8Gg/eaBRyzxa3nxAr2gXIWWjKdt36l3SW g9YRWWVX733VQ== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Andrew Morton , Bjorn Helgaas , Catalin Marinas , 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: Mon, 13 Oct 2025 22:31:21 +0200 Message-ID: <20251013203146.10162-9-frederic@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251013203146.10162-1-frederic@kernel.org> References: <20251013203146.10162-1-frederic@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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=3D" 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; --=20 2.51.0