On Mon, Feb 23, 2026 at 10:57:24AM -1000, Tejun Heo wrote:
> Hello,
>
> > Waiman Long (8):
> > cgroup/cpuset: Fix incorrect change to effective_xcpus in
> > partition_xcpus_del()
> > cgroup/cpuset: Fix incorrect use of cpuset_update_tasks_cpumask() in
> > update_cpumasks_hier()
> > cgroup/cpuset: Clarify exclusion rules for cpuset internal variables
> > cgroup/cpuset: Set isolated_cpus_updating only if isolated_cpus is changed
> > kselftest/cgroup: Simplify test_cpuset_prs.sh by removing "S+" command
> > cgroup/cpuset: Move housekeeping_update()/rebuild_sched_domains() together
> > cgroup/cpuset: Defer housekeeping_update() calls from CPU hotplug to
> > workqueue
> > cgroup/cpuset: Call housekeeping_update() without holding cpus_read_lock
>
> Applied 1-8 to cgroup/for-7.0-fixes with the following minor fixups:
>
> - 5/8: Removed a duplicate test entry that resulted from the "S+"
> removal (two previously-different lines becoming identical).
>
> - 8/8: Fixed typos in commit message ("essentally" -> "essentially",
> "beforce" -> "before") and code comment ("top_cpuset_mutex" ->
> "cpuset_top_mutex").
>
> This has gone through more than enough iterations. We can resolve further
> issues if there's any incrementally.
We really need to check the fact that the workqueue is not flushed at any
relevant point in hotplug such that:
- offline CPU might now appear in the live topology, quite dangerous.
- CPUs might not be timely (un)isolated when they are expected to.
Thanks.
>
> Thanks.
>
> --
> tejun
