I915_FENCE_FLAG_SIGNAL
if (!test_and_clear_bit(I915_FENCE_FLAG_SIGNAL,
if (test_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags))
set_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags);
if (!test_and_clear_bit(I915_FENCE_FLAG_SIGNAL, &rq->fence.flags)) {
if (!test_and_clear_bit(I915_FENCE_FLAG_SIGNAL,