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cgroup/cpuset: Move up prstate_housekeeping_conflict() helper

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Move up the prstate_housekeeping_conflict() helper so that it can be
used in remote partition code.

Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Waiman Long 2025-11-04 23:38:46 -05:00 committed by Tejun Heo
parent 103b08709e
commit 6cfeddbf4a
1 changed files with 20 additions and 20 deletions
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40
kernel/cgroup/cpuset.c
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@ -1432,6 +1432,26 @@ static bool isolated_cpus_can_update(struct cpumask *add_cpus,
return res;
}
/*
* prstate_housekeeping_conflict - check for partition & housekeeping conflicts
* @prstate: partition root state to be checked
* @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
* isolated partition.
*/
static bool prstate_housekeeping_conflict(int prstate, struct cpumask *new_cpus)
{
if (!have_boot_isolcpus)
return false;
if ((prstate != PRS_ISOLATED) && !cpumask_subset(new_cpus, boot_hk_cpus))
return true;
return false;
}
static void update_isolation_cpumasks(bool isolcpus_updated)
{
int ret;
@ -1727,26 +1747,6 @@ static void remote_cpus_update(struct cpuset *cs, struct cpumask *xcpus,
remote_partition_disable(cs, tmp);
}
/*
* prstate_housekeeping_conflict - check for partition & housekeeping conflicts
* @prstate: partition root state to be checked
* @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
* isolated partition.
*/
static bool prstate_housekeeping_conflict(int prstate, struct cpumask *new_cpus)
{
if (!have_boot_isolcpus)
return false;
if ((prstate != PRS_ISOLATED) && !cpumask_subset(new_cpus, boot_hk_cpus))
return true;
return false;
}
/**
* update_parent_effective_cpumask - update effective_cpus mask of parent cpuset
* @cs: The cpuset that requests change in partition root state