[PATCH 4/5] drm/i915/gvt: kill fetch_and_zero usage

[Andrzej Hajda <andrzej.hajda@xxxxxxxxx>]

Better use recently introduced kernel core helper.

Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
---
 drivers/gpu/drm/i915/gvt/kvmgt.c     | 2 +-
 drivers/gpu/drm/i915/gvt/scheduler.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 077892a9aa8fdc..061302abb0a189 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1831,7 +1831,7 @@ static int init_service_thread(struct intel_gvt *gvt)
  */
 static void intel_gvt_clean_device(struct drm_i915_private *i915)
 {
-	struct intel_gvt *gvt = fetch_and_zero(&i915->gvt);
+	struct intel_gvt *gvt = exchange(&i915->gvt, NULL);
 
 	if (drm_WARN_ON(&i915->drm, !gvt))
 		return;
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index 9cd8fcbf7cad16..6699135f366f3f 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -826,7 +826,7 @@ static int dispatch_workload(struct intel_vgpu_workload *workload)
 		/* We might still need to add request with
 		 * clean ctx to retire it properly..
 		 */
-		rq = fetch_and_zero(&workload->req);
+		rq = exchange(&workload->req, NULL);
 		i915_request_put(rq);
 	}
 
@@ -1103,7 +1103,7 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id)
 				intel_vgpu_trigger_virtual_event(vgpu, event);
 		}
 
-		i915_request_put(fetch_and_zero(&workload->req));
+		i915_request_put(exchange(&workload->req, 0));
 	}
 
 	gvt_dbg_sched("ring id %d complete workload %p status %d\n",
-- 
2.34.1