44bbfedbd9
Adds a second optional cleanup callback, called after the fence is signaled. This is needed if, for example, the queue has the last reference to the object that embeds the util_queue_fence. In this case we cannot drop the ref in the main callback, since that would result in the fence being destroyed before it is signaled. Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Marek Olšák <marek.olsak@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>