Re: [PATCH v3 cgroup/for-7.0-fixes] cgroup: Fix cgroup_drain_dying() testing the wrong condition

[Sebastian Andrzej Siewior]

On 2026-03-25 07:23:48 [-1000], Tejun Heo wrote:
> cgroup_drain_dying() was using cgroup_is_populated() to test whether there are
> dying tasks to wait for. cgroup_is_populated() tests nr_populated_csets,
> nr_populated_domain_children and nr_populated_threaded_children, but
> cgroup_drain_dying() only needs to care about this cgroup's own tasks - whether
> there are children is cgroup_destroy_locked()'s concern.
…

Tested-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>

The only issue I see is if I delay the irq_work callback by a second.
Other than that, I don't see any problems.

Sebastian