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cpuset: Convert boot_hk_cpus to use HK_TYPE_DOMAIN_BOOT

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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 <frederic@kernel.org>
Reviewed-by: Phil Auld <pauld@redhat.com>
Reviewed-by: Chen Ridong <chenridong@huawei.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Marco Crivellari <marco.crivellari@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Michal Koutny <mkoutny@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Cc: cgroups@vger.kernel.org
This commit is contained in:
Frederic Weisbecker 2025-05-28 14:18:24 +02:00
parent 4fca0e550d
commit 0f4dfdc17b
1 changed files with 7 additions and 15 deletions
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22
kernel/cgroup/cpuset.c
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@ -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;
}