[PATCH 3/8] drm/i915: stop using seqcount for fenc pruning

[Chris Wilson]

Quoting Christian König (2019-08-06 16:01:29)
> After waiting for a reservation object use reservation_object_test_signaled_rcu
> to opportunistically prune the fences on the object.
> 
> This allows removal of the seqcount handling in the reservation object.
> 
> Signed-off-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

I like keeping the reminder about the lack of pruning on idle objects :)
-Chris