block_all_signals() usage in DRM

[Dave Airlie]

On 26 May 2015 at 02:50, Oleg Nesterov <oleg at redhat.com> wrote:
> AAAAOn 05/25, Richard Weinberger wrote:
>>
>> Is this functionality still in use/needed?
>
> All I can say it doesn't work.
>
>> Otherwise we could get rid of block_all_signals() and unpuzzle the signaling
>> code a bit. :-)
>
> Yes. I do not even remember when I reported this the first time. Perhaps
> more than 10 years ago.
>
> See the last attempt in 2011: https://lkml.org/lkml/2011/7/12/263
> I copied this email below.
>
> Dave. Lets finally kill this horror? I am going to send a patch unless
> you stop me ;)

There were follow up on that thread 4 years ago, but we are probably
at the stage where this thing can die,

I suspect any hw using it has died out, and any new hardware  won't be
doing evil things with drm locks

Dave.