drm/i915/selftests: Apply a heavy handed flush to i915_active

	spin_unlock_irq(lock);

}

static void active_flush(struct i915_active *ref,

			 struct i915_active_fence *active)

{

	struct dma_fence *fence;

	fence = xchg(__active_fence_slot(active), NULL);

	if (!fence)

		return;

	spin_lock_irq(fence->lock);

	__list_del_entry(&active->cb.node);

	spin_unlock_irq(fence->lock); /* serialise with fence->cb_list */

	atomic_dec(&ref->count);

	GEM_BUG_ON(!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags));

}

void i915_active_unlock_wait(struct i915_active *ref)

{

	if (i915_active_acquire_if_busy(ref)) {

		struct active_node *it, *n;

		rcu_read_lock();

		rbtree_postorder_for_each_entry_safe(it, n, &ref->tree, node) {

			struct dma_fence *f;

		/* Wait for all active callbacks */

			f = rcu_dereference(it->base.fence);

			if (f)

				spin_unlock_wait(f->lock);

		}

		rcu_read_lock();

		active_flush(ref, &ref->excl);

		rbtree_postorder_for_each_entry_safe(it, n, &ref->tree, node)

			active_flush(ref, &it->base);

		rcu_read_unlock();

		i915_active_release(ref);