Re: [PATCH cgroup/for-7.2-fixes] cgroup: Create the psimon kthread outside of cgroup_mutex

[Matt Fleming]

On Fri, Jul 10, 2026 at 01:49:45PM -1000, Tejun Heo wrote:
> Matt, your reordering trades one deadlock for another: CLONE_INTO_CGROUP
> forks grab cgroup_mutex inside the scx_fork_rwsem read section, so an
> enable racing such a clone deadlocks the other way around. The fork has to
> move out of the locked sections instead. Can you verify this fixes the
> deadlock in your setup?

Thanks for fixing this. I'll test this out ASAP and report back.