Re: [PATCH v3 6/9] cgroup/cpuset: Add a new isolated cpus.partition type

On Wed, Jul 28, 2021 at 12:27:58PM -0400, Waiman Long [off-list ref] wrote:

PRS_ERROR cannot be passed to update_prstate(). For this patchset, PRS_ERROR
can only be set by changes in hotplug. The current design will maintain the
set flag (CS_SCHED_LOAD_BALANCE) and use it to decide to switch back to
PRS_ENABLED or PRS_ISOLATED when the cpus are available again.

I see it now, thanks. (I still find a bit weird that the "isolated"
partition will be shown as "root invalid" when it's lacking cpus
(instead of "isolated invalid" and returning to "isolated") but I can
understand the approach of having just one "root invalid" for all.)

This patch can have
Reviewed-by: Michal Koutný <mkoutny-IBi9RG/b67k@public.gmane.org>