On Thu, Jan 09, 2020 at 04:05:59PM +0100, Michal Koutný wrote: > The commit prevents these situations by making cgroup_type_write wait > for all dying csses to go away before re-applying subtree controls. > When at it, the locations of WARN_ON_ONCE calls are moved so that > warning is triggered only when we are about to misuse the dying css. Applied to cgroup/for-5.6. Thanks. -- tejun