On Thu, Apr 13, 2023 at 09:22:19PM -0400, Waiman Long wrote: > I now have a slightly different idea of how to do that. We already have an > internal cpumask for partitioning - subparts_cpus. I am thinking about > exposing it as cpuset.cpus.reserve. The current way of creating > subpartitions will be called automatic reservation and require a direct > parent/child partition relationship. But as soon as a user write anything to > it, it will break automatic reservation and require manual reservation going > forward. > > In that way, we can keep the old behavior, but also support new use cases. I > am going to work on that. I'm not sure I fully understand the proposed behavior but it does sound more quirky. Thanks. -- tejun