[PATCH 4/7] drm/ttm: user reservation object wrappers

[Christian König]

Am 09.11.2017 um 17:50 schrieb Michel Dänzer:
> On 09/11/17 09:59 AM, Christian König wrote:
>> Consistently use the reservation object wrappers instead of accessing
>> the ww_mutex directly.
>>
>> Additional to that use the reservation object wrappers directly instead of
>> calling __ttm_bo_reserve with fixed parameters.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
> [...]
>
>> @@ -1823,7 +1823,9 @@ int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo)
>>   		return -ERESTARTSYS;
>>   	if (!ww_mutex_is_locked(&bo->resv->lock))
>>   		goto out_unlock;
>> -	ret = __ttm_bo_reserve(bo, true, false, NULL);
>> +	ret = reservation_object_lock_interruptible(bo->resv, NULL);
>> +	if (ret = -EINTR)
>> +		ret = -ERESTARTSYS;
> Typo in the test, must be
>
>      if (ret == -EINTR)
>
>
> This bug caused the Xorg process to hang for me when trying to run
> glxgears, requiring a hard reboot. Did you accidentally send an untested
> version of this patch?
Yeah, just stumbled over this as well. I accidentally merged the fix for 
this into a later patch which I didn't send out yet.

Consider it fixed,
Christian.