[PATCH 2/3] drm/scheduler: Don't call wait_event_killable for signaled process.

Eric W. Biederman ebiederm at xmission.com
Thu Apr 26 00:01:05 UTC 2018

Andrey Grodzovsky <Andrey.Grodzovsky at amd.com> writes:

> On 04/25/2018 01:17 PM, Oleg Nesterov wrote:
>> On 04/25, Andrey Grodzovsky wrote:
>>> here (drm_sched_entity_fini) is also a bad idea, but we still want to be
>>> able to exit immediately
>>> and not wait for GPU jobs completion when the reason for reaching this code
>>> is because of KILL
>>> signal to the user process who opened the device file.
>> Can you hook f_op->flush method?
> But this one is called for each task releasing a reference to the the file, so
> not sure I see how this solves the problem.

The big question is why do you need to wait during the final closing a

The wait can be terminated so the wait does not appear to be simply a
matter of correctness.


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