On Sat, Oct 07, 2023 at 02:02:57PM +0000, Yafang Shao wrote: > The task cannot modify cgroups if we have already acquired the > css_set_lock, thus eliminating the need to hold the cgroup_mutex. Following > this change, task_cgroup_from_root() can be employed in non-sleepable contexts. > > Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> Maybe just drop lockdep_assert_held(&cgroup_mutex) from cset_cgroup_from_root()? Thanks. -- tejun
