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 72785CCFA0D for ; Wed, 5 Nov 2025 21:04:58 +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=Jo8Wdjvj3YfXYEEpEI+fQEmDmOtHAHT+I0W8XkKzZIw=; b=xWqxEhN/z6rwxW8CXpcd0pl+mN QxcpyE/eipbWUUcWMZFPcZXvDVrpjOWYPte7GGbF1dFvsdl3RYgCX/oNDUB8YfgCn1Ki5ph8zav4n flmbmhH0+eW6qybo/laPI8P4o3tqI9WYhNv2SzhrTxGzXxMfOCosfPQFl9KQoBBH9+/gNxIxK2FXq sWtmk0XbK+3i9cHL0MMoBXTz3sRJCIuIkvhSMMZrDyce63pzBUHL39+iYy5WQaN3c4kJTUA3A+xZr 9QW7FW1r5yyK27CQQxL22m0c+IkJCQzCQVjACmTjpPZJQ0U0jnTH9S/H1PYs7ZspvIAjRYInXqSc7 UE0ZbkdA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGkgW-0000000EQ0k-1ol1; Wed, 05 Nov 2025 21:04:52 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGkgU-0000000EPz2-0wXq for linux-arm-kernel@lists.infradead.org; Wed, 05 Nov 2025 21:04:50 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id A0DBC60224; Wed, 5 Nov 2025 21:04:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F24B5C4CEF5; Wed, 5 Nov 2025 21:04:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762376689; bh=4bRWbV0YuzmDy1B/sRgCWln6RMh7KL9GReKc3Nnqm6c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W3jxBxnchXPJZKH2so0QCGrjyVavB6XgcFLZnwbf0ylrkboEezz9X/2eMG8q91HHH IAy92pFmbbdtvG33O3dU7hzjvMro+XMvvQrNO/4OHnD9UvLBMJlxfs33g9qiYG2hYK Z0ilCk2hxybBfgiC79MXfe3wp5DcBV55tZ8C2OtTr6lrdTxYZyW0YhSWQqXLYhiguS KJRtlYb248Pfs9ZOvisxol44RbREaI0m1UwUFynnMWwx9v9jprD0lSiNDM6UD69QkS z51fmf04HQKK4hqG5yCwVC8LmdU7H4H6mQNm+oJwCuT4iwU5cBY2Mo98ASdwndibIo jTUvvHb6LCGVg== 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 06/31] cpuset: Convert boot_hk_cpus to use HK_TYPE_DOMAIN_BOOT Date: Wed, 5 Nov 2025 22:03:22 +0100 Message-ID: <20251105210348.35256-7-frederic@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251105210348.35256-1-frederic@kernel.org> References: <20251105210348.35256-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- 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 52468d2c178a..8595f1eadf23 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -81,12 +81,6 @@ static cpumask_var_t subpartitions_cpus; */ static cpumask_var_t isolated_cpus; -/* - * Housekeeping (HK_TYPE_DOMAIN) CPUs at boot - */ -static cpumask_var_t boot_hk_cpus; -static bool have_boot_isolcpus; - /* List of remote partition root children */ static struct list_head remote_children; @@ -1686,15 +1680,16 @@ static void remote_cpus_update(struct cpuset *cs, struct cpumask *xcpus, * @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; @@ -3824,12 +3819,9 @@ 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; } -- 2.51.0