[PATCH 2/2] drm/amdgpu: Fix use of interruptible waiting

[Michel Dänzer]

On 27/04/17 06:05 PM, Christian König wrote:
> 
>> 2. In this function and caller functions, the error handling for such
>> interrupt is complicated and risky. When the waiting is interrupted by
>> a signal, the callers of this function need to handle this interrupt
>> error. I traced the calling stack all the way back to function
>> drm_mode_page_flip_ioctl. I could not find an issue. But I am not sure
>> about even upper layer. Is this IOCTL restartable? How about further
>> higher layer? Since I didn't see benefit in point 1. So I thought it
>> was a good idea to change.
> 
> The page flip IOCTL should be restartable. I think all drm IOCTLs with
> driver callbacks are restartable, but I'm not 100% sure, Michel probably
> knows that better.

Yes, I'm pretty sure it is.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer