On Thu, Mar 26, 2020 at 03:16:23PM -0400, Joel Fernandes (Google) wrote: > This deliberately changes the behavior of the per-cpuset > cpus file to not be effected by hotplug. When a cpu is offlined, > it will be removed from the cpuset/cpus file. When a cpu is onlined, > if the cpuset originally requested that that cpu was part of the cpuset, > that cpu will be restored to the cpuset. The cpus files still > have to be hierachical, but the ranges no longer have to be out of > the currently online cpus, just the physically present cpus. This is already the behavior on cgroup2 and I don't think we want to introduce this big a behavior change to cgroup1 cpuset at this point. Thanks. -- tejun