[cgroup/for-6.19 PATCH v3 0/5] cgroup/cpuset: Additional housekeeping check & cleanup

[Waiman Long <longman@redhat.com>]

 v3: Break out the prstate_housekeeping_conflict() change into 2
     new patches with some testing result included.

 v2: Update patch 2 to correct some of the checking code and add
     prstate_housekeeping_conflict() as suggested by Chen Ridong.

The first two patches are based on the two cpuset patches from the
"timers: Exclude isolated cpus from timer migration" patch series [1]
with some modifications. They add additional nohz_full housekeeping
mask check to ensure that there is at least one common housekeeping
CPU that is not domain and nohz_full isolated.

Patches 3 & 4 fix another housekeeping CPU conflict issue reported by
Chen Ridong.

The last patch is another cleanup patch to simplify the current
partition code.

[1] https://lore.kernel.org/lkml/20251020112802.102451-1-gmonaco@redhat.com/

Gabriele Monaco (1):
  cgroup/cpuset: Rename update_unbound_workqueue_cpumask() to
    update_isolation_cpumasks()

Waiman Long (4):
  cgroup/cpuset: Fail if isolated and nohz_full don't leave any
    housekeeping
  cgroup/cpuset: Move up prstate_housekeeping_conflict() helper
  cgroup/cpuset: Ensure domain isolated CPUs stay in root or isolated
    partition
  cgroup/cpuset: Globally track isolated_cpus update

 kernel/cgroup/cpuset.c | 189 ++++++++++++++++++++++++++++-------------
 1 file changed, 130 insertions(+), 59 deletions(-)

-- 
2.51.1