Messages in this thread | | | Date | Wed, 1 Dec 2021 12:49:15 -0500 | Subject | Re: [PATCH v8 5/6] cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst | From | Waiman Long <> |
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On 12/1/21 11:39, Tejun Heo wrote: > On Wed, Dec 01, 2021 at 09:56:21AM -0500, Waiman Long wrote: >> Right, I shouldn't say corner cases. Having task in an intermediate >> partition is possible depending on event sequence. I am aware that there are >> code in the cpuset code to prevent that, but it didn't block all cases. >>>> A valid parent partition may distribute out all its CPUs to >>>> its child partitions as long as there is no task associated with it. >>> Assuming there's always at least one kernel thread in the root cgroup >>> that can't be migrated anyway.] >> I am aware of that. That is why I said root cgroup must have at least one >> cpu in its "cpuset.cpus.effective". > In that case, let's explicitly describe that condition.
Yes, I will. Only non-root cgroup can distribute out all its CPUs. I thought I said that in the documentation, maybe it is very clear.
Cheers, Longman
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