On 10/13/21 5:45 PM, Waiman Long wrote:

quoted

In conclusion, it'd be good to have validity conditions separate from
transition conditions (since hotplug transition can't be rejected) and
perhaps treat administrative changes from an ancestor equally as a
hotplug.

I am trying to make the result of changing "cpuset.cpus" as close to 
hotplug as possible but there are cases where the "cpuset.cpus" change 
is prohibited but hotplug can still happen to remove the cpu.

Hope this will help to clarify the current design.

BTW, the attached file is the current draft of cpuset.cpus.partition 
document.

Cheers,
Longman