Re: [PATCH v4 4/9] cgroup/cpuset: Allow suppression of sched domain rebuild in update_cpumasks_hier()

On Tue, Jun 27, 2023 at 10:35:03AM -0400, Waiman Long wrote:

A single partition setup and tear-down operation can lead to multiple rebuild_sched_domains_locked() calls which is a waste of effort. This can partly be mitigated by adding a flag to suppress the rebuild_sched_domains_locked() call in update_cpumasks_hier(). Since a Boolean flag has already been passed as the 3rd argument to update_cpumasks_hier(), we can extend that to a full flag word.

The sched domain rebuild suppression is now enabled in update_sibling_cpumasks() as all it callers will do the sched domain rebuild after its return later on anyway.

Signed-off-by: Waiman Long longman@redhat.com

Applied 1-3 to cgroup/for-6.6.

Thanks.