On Fri, Mar 17, 2023 at 02:05:32PM -0400, Waiman Long <longman@xxxxxxxxxx> wrote: > A cpu will be in the subparts_cpus only if it has been given to the child > partition. So when it becomes online, it will become part of the scheduling > domain that child partition. Only the tasks in that child partition will get > their cpumasks updated to use it, not those in the top cpuset. Right, it's actually the difference between offlining a CPU and giving it to a sub-partition (hence a removed child (or switched to member) before CPU onlining). It's clear to me now. Thanks, Michal
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