[PATCH 01/11] reservation: add reservation_object_get_excl_unlocked()

[Maarten Lankhorst]

Op 31-03-16 om 22:23 schreef Rob Clark:
> In the atomic modesetting path, each driver simply wants to grab a ref
> to the exclusive fence from a reservation object to store in the incoming
> drm_plane_state, without doing the whole RCU dance.  Since each driver
> will need to do this, lets make a helper.
>
> v2: rename to _rcu instead of _unlocked to be more consistent
>
Forgot to update commit message. :)