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 377E2D7237B for ; Sun, 25 Jan 2026 22:46:50 +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=N6kNyjpAty5pqhw6oDvuv7eYRraJpy7CkwduZRvO+Bw=; b=WDQr+8HLpJZ3+L5wzOwEU/WHpk wdvVkxLia5ZMVQXyZaKeswzeBNKpIFFB4ZcTBh6nkXI/y+TFWv7PprSc5n66G2m50yjaB/F8YmLdD Tu2lo2WwaMwFrqxcnAfynxg59C0i1+rwxGYgymAs3140wSVbfEodQY8GDfZ2ID3NhosWZ0+wSHO0k Ivb0cmHYq3BRRxLidd1VZodfosPVlUiPXfOQrk+iWWZnweX10pgL5rXZ4+IH/fn2oOMuvI8H9T2DI gGYoMSagwZdiQvNKLUPQmM6GJLdBK0J2W5DZaAfUsXBlU1v/RD30Rbq+u+LzCJ3s3VcB/viwZzg7r pexggFrw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vk8sX-0000000BbNP-1UgG; Sun, 25 Jan 2026 22:46:45 +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 1vk8sS-0000000BbJe-3NxJ for linux-arm-kernel@lists.infradead.org; Sun, 25 Jan 2026 22:46:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 710764183E; Sun, 25 Jan 2026 22:46:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15BBBC16AAE; Sun, 25 Jan 2026 22:46:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769381200; bh=pTB9cNPcvPakmWV9jutt30tCCHfCDIAA9k4V/apVATM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aGGZML+whxH4c/xSgMhk4FEyW2E/CWTmGwSjAzdR7qsacQp3b8hfFVgE447fO9/dX IQEJn/vgUpEZUS6tbTqkaYXfkNrSvsbqHhzEPX7xBth/mnWW+3tJvuHvfKvQAC/vVG vEGDolxnjONqPuiKrBNoysiyVqrAVXx0eEqiEVlIdaL6NLKgEAffKrWTi9riHYAikG /hwF51Wz5CFt4Ib6YpUG2jmb6nKt1OcFQptXMkoStma9Z1bi3gqYhu3s/Tvf0YtVar uzE+IeGNule8/0UK3WlNJWV0oZ+AhujXHcgsfp5fecQfYHKx32nJT/uyqQWy0UYujU CYmtYFJauzfgA== 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 06/33] cpuset: Convert boot_hk_cpus to use HK_TYPE_DOMAIN_BOOT Date: Sun, 25 Jan 2026 23:45:13 +0100 Message-ID: <20260125224541.50226-7-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260125224541.50226-1-frederic@kernel.org> References: <20260125224541.50226-1-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-20260125_144640_894363_83C3A7E2 X-CRM114-Status: GOOD ( 12.99 ) 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 boot_hk_cpus is an ad-hoc copy of HK_TYPE_DOMAIN_BOOT. Remove it and use the official version. Signed-off-by: Frederic Weisbecker Reviewed-by: Phil Auld Reviewed-by: Chen Ridong Reviewed-by: Waiman Long --- kernel/cgroup/cpuset.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 6e6eb09b8db6..3afa72f8d579 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -88,12 +88,6 @@ static cpumask_var_t isolated_cpus; */ static bool isolated_cpus_updating; -/* - * Housekeeping (HK_TYPE_DOMAIN) CPUs at boot - */ -static cpumask_var_t boot_hk_cpus; -static bool have_boot_isolcpus; - /* * A flag to force sched domain rebuild at the end of an operation. * It can be set in @@ -1453,15 +1447,16 @@ static bool isolated_cpus_can_update(struct cpumask *add_cpus, * @new_cpus: cpu mask * Return: true if there is conflict, false otherwise * - * CPUs outside of boot_hk_cpus, if defined, can only be used in an + * CPUs outside of HK_TYPE_DOMAIN_BOOT, if defined, can only be used in an * isolated partition. */ static bool prstate_housekeeping_conflict(int prstate, struct cpumask *new_cpus) { - if (!have_boot_isolcpus) + if (!housekeeping_enabled(HK_TYPE_DOMAIN_BOOT)) return false; - if ((prstate != PRS_ISOLATED) && !cpumask_subset(new_cpus, boot_hk_cpus)) + if ((prstate != PRS_ISOLATED) && + !cpumask_subset(new_cpus, housekeeping_cpumask(HK_TYPE_DOMAIN_BOOT))) return true; return false; @@ -3892,12 +3887,9 @@ int __init cpuset_init(void) BUG_ON(!alloc_cpumask_var(&cpus_attach, GFP_KERNEL)); - have_boot_isolcpus = housekeeping_enabled(HK_TYPE_DOMAIN); - if (have_boot_isolcpus) { - BUG_ON(!alloc_cpumask_var(&boot_hk_cpus, GFP_KERNEL)); - cpumask_copy(boot_hk_cpus, housekeeping_cpumask(HK_TYPE_DOMAIN)); - cpumask_andnot(isolated_cpus, cpu_possible_mask, boot_hk_cpus); - } + if (housekeeping_enabled(HK_TYPE_DOMAIN_BOOT)) + cpumask_andnot(isolated_cpus, cpu_possible_mask, + housekeeping_cpumask(HK_TYPE_DOMAIN_BOOT)); return 0; } -- 2.51.1