Re: [PATCH cgroup/for-6.20 v4 4/5] cgroup/cpuset: Don't invalidate sibling partitions on cpuset.cpus conflict
From: Michal Koutný
Date: Mon Jan 12 2026 - 10:08:33 EST
On Mon, Jan 12, 2026 at 09:51:28AM -0500, Waiman Long <llong@xxxxxxxxxx> wrote:
> Sorry, I might have missed this comment of yours. The
> "cpuset.cpus.exclusive" file lists all the CPUs that can be granted to its
> children as exclusive CPUs. The cgroup root is an implicit partition root
> where all its CPUs can be granted to its children whether they are online or
> offline. "cpuset.cpus.effective" OTOH ignores the offline CPUs as well as
> exclusive CPUs that have been passed down to existing descendant partition
> roots so it may differ from the implicit "cpuset.cpus.exclusive".
Howewer, there's no "cpuset.cpus" configurable nor visible on the root
cgroup. So possibly drop this hunk altogether for simplicity?
Michal
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