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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: Thu, 1 Jan 2026 23:13:31 +0100 Message-ID: <20260101221359.22298-7-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260101221359.22298-1-frederic@kernel.org> References: <20260101221359.22298-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: yyrhwzdu3fab9mauomuuxn614am4ax4a X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 374208000B X-Rspam-User: X-HE-Tag: 1767305703-79725 X-HE-Meta: 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 qc2vSLAX 03KmtpU/Gnb7+ZP+Am67W5qjPuGmXx2+N4K6MUDGLZ93CDcU2vkna94u/ezgeWLbF5lSIJnuA7/rtmcbI8SrD901z2fbIYphGakpL0Fxl/izqoSqCkn7UVZmQyK/QwagbzQaZL3Itq0vhEmZfoKMKoiFTjnSGqoujGLFB9ljqdnY0hpUqhbBqfWNTdnZoqRLgoNU1dl59VysA0vjTNtQsoGsb53iJv0Gfa0EzsY9ntfOl4iszdgmEWPu70G7E0liHQC0efCeFm1qWxL464s38a15d2gNQc986hKD6 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