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SubjectRe: [PATCH v8 4/6] cpuset: Make generate_sched_domains() recognize isolated_cpus
On 17/05/18 16:55, Waiman Long wrote:

[...]

> @@ -849,7 +860,12 @@ static void rebuild_sched_domains_locked(void)
> * passing doms with offlined cpu to partition_sched_domains().
> * Anyways, hotplug work item will rebuild sched domains.
> */
> - if (!cpumask_equal(top_cpuset.effective_cpus, cpu_active_mask))
> + if (!top_cpuset.isolation_count &&
> + !cpumask_equal(top_cpuset.effective_cpus, cpu_active_mask))
> + goto out;
> +
> + if (top_cpuset.isolation_count &&
> + !cpumask_subset(top_cpuset.effective_cpus, cpu_active_mask))
> goto out;

Do we cover the case in which hotplug removed one of the isolated cpus
from cpu_active_mask?

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