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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-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 4EC28C0008 X-Stat-Signature: zy474acf5qmbwaq6gwhnj5js4y9zt5er X-Rspam-User: X-HE-Tag: 1769381201-736576 X-HE-Meta: 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 1QIQ18h2 p3jYJhgwQMZ3GWTll+DRPyz1+rvTqU9CZnuCH7AIhRw9J+W+rvAAAIFzalTTtAqhD99NRNKywpZGSrVmyIRzxioG8bH9INwi7JSsmQIemoWXgRS0DlzXBoonr/T4nzjCOCzmYwl+95pS5xSl/56NlsNlQU8xShbo/osZbVm7ZWHS/qxzYOghhop4AKquid7bmuER6eqEJSCp0Im9nsrprFcB3iO7hG4c7AMjJTFtIlObzosHmz5UK2lXEM69BhtwbfloRiiLs56sk3aomyXM3DZjOsnxi1cW1P9XN X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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