Re: regulator: deadlock vs memory reclaim

[Dmitry Osipenko]

10.08.2020 23:09, Michał Mirosław пишет:
> At first I also thought so, but there's more. Below is a lockdep
> complaint with your patch applied. I did a similar patch and then two more
> (following) and that is still not enough (sysfs/debugfs do allocations,
> too).

Then it should be good to move the locking for init_coupling() like I
suggested and use GFP_NOWAIT for the two other cases. It all could be a
single small patch. Could you please check whether GFP_NOWAIT helps?