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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: Wed, 24 Dec 2025 14:44:53 +0100 Message-ID: <20251224134520.33231-7-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-Stat-Signature: csug84sud9h9wsa4sh4whza1txz65hu4 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 3F0B1A000E X-Rspam-User: X-HE-Tag: 1766583985-404849 X-HE-Meta: U2FsdGVkX18zW816EVt+gY/mg9sXtX83EDJ7Q8wr8QG6gCI/LHhMXb7ocNRNgeHlzajMPQxlJhTc46ksyS3fiu/Y0KUzqzsDYcDeM66jzLcsDDAKlVReBKsfSYVX3ggYQZV1rRnk1Uz4KZrZguuGN2PJWpfY43kKobex7Pt1ZIk2FwGStF/SU7GK8O9zRi9wclT2jsB2x2e51PG9ISWVkVoadxvK+xQzGtyt2iApnQEzmMh//fXzhS+ew9wgG4ppnKv7w7PDntrdm+W8sTdSPcTZyqOPykJHAK1AjbVHQFVw78r3O6toKtrk7OfLtV/mT4N9MyWjSsbZebOowVEgkkCf9iighNgABKBxFwOmrjbli6+VyB+sY9+AvxlDMxAj/Pre4hHQ+1RFD158HI/rKh7ZenY2vn1WgMsqYhiACF3rr9ov9ISiQOzFGemjWavJT1J2RK6d9K5/fljotC9oywIuloxvoNawSQt7y1fe8w6LuOU8ZNRRXfuqw28pdwuecXjGw2rVWjJ2EQJF3Wqie76V5wvN9g8x8hswcrGj7AwVAP/3nxwUWezvHWlvozica358Y1WpajVA/03j0yHdiSpa7+yJDnGPZgvhykRjMKLFjvEBfUMHjfTSgI6XfxaWQgw5zUJgbK5aW5j9wFenp52/UxRUOBpMpIg3xdk5butDuxO7irgI29vowiamK6LRy3X73UKw21SeA9z7TYS9PqluSzCqg4oae4Vefr7QAcFCMRdnDP9Mc2RLVvaOOJTSUTCcwoyqJmNL8OAG6ettfb8rskBWWsS9G519QrMcOMKtttCxU/flK/DExKt8g5d5siGfYPEDNIdkfkwZ69G1RV3j9+kWOYQNUTWqmpHQLl929dXleNBelH1N29LyXAZKIoE3UocjDTgLpKamSMl5ixjsgSSKzv8thiY21qNWSY/erfSUn6zu7x1lPAZKHL6H69jchXFSmro1Eyr+3HM M4dx7GdB J/rHulyBvTea3BspikRTXj3apmt5AwCVgNG49PI0+zuqN0KDMmavxvUkIY1GrhyKBwvIzSZV9Km6MRZylAprGB5HNjcf63R9qIG5spTkSdJt+bojyHaM7cUu6zt/AL88qLdgT9zc2n4xL0yHbofXKRXiFxqcWWvAV2CxseuK6/LKglOycJyNWN9a4ki9bxiCfWeSieTDwiWbwVjtRIasJB+dOo3Zq0prPx4VLibsJt/tKVXF4hi4kdDR+78Og9bXiKp7pNqQiXCD1aj3yVNFxbuE+H1VKracDKNB8 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 --- 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