From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EBEC3E75453 for ; Wed, 24 Dec 2025 13:52:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kNHhksth0DMgZoLPWd0R5GoOcr9klYZtYuCtgdTRwi0=; b=QZ9zwJ/CDUw5WPfEy2dT6gN4y+ +1kX5W78cgV3U21Y0jJCcFBm+DxYtf96cKlcSCIvYFpIysBOZ0kKFeQ5d8bTcW7Gd1VtrdXrxjyPD ujpYwBw7xdv7FdeO71XrFbPKAgC0dMzIY+TgkAH6aFc6rh0i2sqYWMeeQyG0vO2scWCgDPATPC0gD 1ikIeyVsz42AAsnDV9FtHgHuvwazIpBxSbGTEMkLDlivmwG7H3fv62yJ2ANOKLHS58mHx6TFHDMOl WvehD0S1NuoRPCxNCwNZNC6iYlulADwuwjpw4juyOCTjQ6RA9QLCFHSWQkcCXkXaDeiq4YLWNSNPq Aa696ySg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vYPHs-0000000GvK0-11Ui; Wed, 24 Dec 2025 13:52:24 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vYPHo-0000000GvIt-2bLH for linux-arm-kernel@lists.infradead.org; Wed, 24 Dec 2025 13:52:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id DDFDC42E4F; Wed, 24 Dec 2025 13:46:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DABD9C19422; Wed, 24 Dec 2025 13:46:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766584000; bh=gHL1k3Ce/0Yqnu3RKEhMFCTtXjaAjQ9JVob0E5Uoa3s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YEoDZ31GmGpSVaixCaVHDjz7hz5ylaJwYHRMTm+fbM5Jar6Gye1IQ1mBYPf96xzGj fGFhfdBE16gb9LLiHQ77jd2mxvDZdm3h3VCaACHPwVQjkTMQsrAeAkG4dqPnfwvC/0 TU1utC3K3+brNwXcaj102NZUz6hGO36B7Mh97w+Ge+ob9xdqZIwn9/YLSeiLagqQ/B plH9LJrMLTEg2BRmiKnfmL0Q1YPNhDBKKOzibA1SIzgql4aWDBZRZfLJrxbL7UAg3Q BYU2hqBNRR2SiJvmVFiJtWBunuhVOHTEkRaNhzJQ0z7SyXNFVu2R4zREpCJvIUdGUH OvyDw/WtTjnXg== 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: Wed, 24 Dec 2025 14:44:55 +0100 Message-ID: <20251224134520.33231-9-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251224134520.33231-1-frederic@kernel.org> References: <20251224134520.33231-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251224_055220_669576_B14484B1 X-CRM114-Status: GOOD ( 12.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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