Re: [PATCH v8 5/6] cgroup/cpuset: Update description of cpuset.cpus.partition in cgroup-v2.rst

[Tejun Heo]

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.

Thanks.

-- 
tejun