[PATCH 09/11] hmm

[Chris Wilson]

---
 drivers/gpu/drm/i915/i915_request.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 2a13bf71f8a7..61ffc3291cd1 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1027,8 +1027,7 @@ __i915_request_add_to_timeline(struct i915_request *rq)
 	 * precludes optimising to use semaphores serialisation of a single
 	 * timeline across engines.
 	 */
-	prev = i915_active_request_raw(&timeline->last_request,
-				       &rq->i915->drm.struct_mutex);
+	prev = rcu_dereference_protected(timeline->last_request.request, 1);
 	if (prev && !i915_request_completed(prev)) {
 		if (is_power_of_2(prev->engine->mask | rq->engine->mask))
 			i915_sw_fence_await_sw_fence(&rq->submit,
-- 
2.20.1