[PATCH 3/3] drm: do not sleep on vblank while holding a mutex

[Ilija Hadzic]

On Thu, 27 Oct 2011, Alan Coopersmith wrote:

>> 
>> I think the idea of sharing kernel drm code is pretty much dead, yeah.
>
> We are still trying to keep it alive, despite what some may think.
>

In the context of this patch (in progress), it's probably a moot topic 
because per comments that Daniel sent, most of the locks in 
drm_vblank_wait will become unecessary after I rework the patch
and I won't need to introduce (new) DRM_WAIT_ON_LOCKED any more.

I will, however, *not* convert existing DRM_WAIT_ON to a Linux-centric 
function, so I will not be the one to kill (or contribute to the killing 
of) the portability of that file. That I leave to someone else ;-).

P.S. If the "fight" starts I will side with the "keep the portability 
alive" camp. I have "emotional" ties with other (less widely used) 
operating systems. ;-)

-- Ilija