tree b5115c9e34f7ecc9afb2ce3e100c30704dfcd299
parent f28e22441f353aa2c954a1b1e29144f8841f1e8a
author Waiman Long <longman@redhat.com> 1662065861 -0400
committer Tejun Heo <tj@kernel.org> 1662324447 -1000

cgroup/cpuset: Show invalid partition reason string

There are a number of different reasons which can cause a partition to
become invalid. A user seeing an invalid partition may not know exactly
why. To help user to get a better understanding of the underlying reason,
The cpuset.cpus.partition control file, when read, will now report the
reason why a partition become invalid. When a partition does become
invalid, reading the control file will show "root invalid (<reason>)"
where <reason> is a string that describes why the partition is invalid.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>