On Mon, Mar 06, 2023 at 03:08:45PM -0500, Waiman Long <longman@xxxxxxxxxx> wrote: > If a hotplug event doesn't affect the current cpuset, there is no point > to call hotplug_update_tasks() or hotplug_update_tasks_legacy(). So > just skip it. This skips "insane" modification of cs->cpus_allowed in hotplug_update_tasks_legacy() but assuming cs->cpus_allowed is kept in sync with cs->effective_cpus on v1, it is OK to skip the update based only on effective_cpus check. Hence, > kernel/cgroup/cpuset.c | 3 +++ > 1 file changed, 3 insertions(+) Reviewed-by: Michal Koutný <mkoutny@xxxxxxxx>
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