Re: [PATCH v3 3/9] cgroup/cpuset: Fix violation of cpuset locking rule
From: Tejun Heo <tj@kernel.org>
Date: 2021-07-26 23:10:22
Also in:
cgroups, linux-kselftest, lkml
On Tue, Jul 20, 2021 at 10:18:28AM -0400, Waiman Long wrote:
The cpuset fields that manage partition root state do not strictly
follow the cpuset locking rule that update to cpuset has to be done
with both the callback_lock and cpuset_mutex held. This is now fixed
by making sure that the locking rule is upheld.
Fixes: 3881b86128d0 ("cpuset: Add an error state to cpuset.sched.partition")
Fixes: 4b842da276a8 ("cpuset: Make CPU hotplug work with partition)
Signed-off-by: Waiman Long <longman@redhat.com>Applied to cgroup/for-5.15. Thanks. -- tejun