On 7/26/21 6:59 PM, Tejun Heo wrote:
On Tue, Jul 20, 2021 at 10:18:27AM -0400, Waiman Long wrote:In cpuset_hotplug_workfn(), the detection of whether the cpu list has been changed is done by comparing the effective cpus of the top cpuset with the cpu_active_mask. However, in the rare case that just all the CPUs in the subparts_cpus are offlined, the detection fails and the partition states are not updated correctly. Fix it by forcing the cpus_updated flag to true in this particular case. Fixes: 4b842da276a8 ("cpuset: Make CPU hotplug work with partition") Signed-off-by: Waiman Long <longman@xxxxxxxxxx>Applied to cgroup/for-5.15 w/ a minor update to the comment (I dropped "just" before "all". It read weird to me.) Thanks.
Thanks for fixing the wording. Cheers, Longman
