[git pull] fbcon locking fixes.

[Dave Airlie]

On Fri, Jan 25, 2013 at 11:06 AM, Dave Airlie <airlied at gmail.com> wrote:
> On Fri, Jan 25, 2013 at 10:53 AM, Linus Torvalds
> <torvalds at linux-foundation.org> wrote:
>> On Thu, Jan 24, 2013 at 4:42 PM, Dave Airlie <airlied at linux.ie> wrote:
>>>
>>> These patches have been sailing around long enough, waiting for a maintainer
>>> to reappear, so I've decided enough is enough, lockdep is kinda useful to have.
>>
>> Last this was tried, these patches failed miserably.
>>
>> They caused instant lockdep splat and then a total lockup with efifb.
>> It may be that Takashi's patch helps fix that problem, but it's in no
>> way clear that it does, so the patch series isn't at all obviously
>> stable.
>>
>> Yes, lockdep is indeed "kinda useful", and there clearly are locking
>> problems in fbdev. But I'm not seeing myself pulling these for 3.8.
>> They've been too problematic to pull in at this late stage.
>>
>
> Okay I'll fix the efifb problem and then maybe queue them for -next.

Okay I've just sent out another fbcon patch to fix the locking harder.

There was a path going into set_con2fb_path if an fb driver was
already registered, I just pushed the locking out further on anyone
going in there.

it boots on my EFI macbook here.

Dave.