dma-buf: rename dma_resv_get_excl_rcu to _unlocked

That describes much better what the function is doing here.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210602111714.212426-6-christian.koenig@amd.com

drivers/gpu/drm/drm_gem.c

@@ -1375,7 +1375,7 @@ int drm_gem_fence_array_add_implicit(struct xarray *fence_array,
 
 	if (!write) {
 		struct dma_fence *fence =
-			dma_resv_get_excl_rcu(obj->resv);
+			dma_resv_get_excl_unlocked(obj->resv);
 
 		return drm_gem_fence_array_add(fence_array, fence);
 	}

drivers/gpu/drm/drm_gem_atomic_helper.c

@@ -147,7 +147,7 @@ int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_st
 		return 0;
 
 	obj = drm_gem_fb_get_obj(state->fb, 0);
-	fence = dma_resv_get_excl_rcu(obj->resv);
+	fence = dma_resv_get_excl_unlocked(obj->resv);
 	drm_atomic_set_fence_for_plane(state, fence);
 
 	return 0;

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c

@@ -195,7 +195,7 @@ static int submit_fence_sync(struct etnaviv_gem_submit *submit)
 			if (ret)
 				return ret;
 		} else {
-			bo->excl = dma_resv_get_excl_rcu(robj);
+			bo->excl = dma_resv_get_excl_unlocked(robj);
 		}
 
 	}

drivers/gpu/drm/i915/display/intel_display.c

@@ -11040,7 +11040,7 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 		if (ret < 0)
 			goto unpin_fb;
 
-		fence = dma_resv_get_excl_rcu(obj->base.resv);
+		fence = dma_resv_get_excl_unlocked(obj->base.resv);
 		if (fence) {
 			add_rps_boost_after_vblank(new_plane_state->hw.crtc,
 						   fence);

drivers/gpu/drm/i915/gem/i915_gem_object.h

@@ -500,7 +500,7 @@ i915_gem_object_last_write_engine(struct drm_i915_gem_object *obj)
 	struct dma_fence *fence;
 
 	rcu_read_lock();
-	fence = dma_resv_get_excl_rcu(obj->base.resv);
+	fence = dma_resv_get_excl_unlocked(obj->base.resv);
 	rcu_read_unlock();
 
 	if (fence && dma_fence_is_i915(fence) && !dma_fence_is_signaled(fence))

drivers/gpu/drm/i915/gem/i915_gem_wait.c

@@ -73,7 +73,7 @@ i915_gem_object_wait_reservation(struct dma_resv *resv,
 		 */
 		prune_fences = count && timeout >= 0;
 	} else {
-		excl = dma_resv_get_excl_rcu(resv);
+		excl = dma_resv_get_excl_unlocked(resv);
 	}
 
 	if (excl && timeout >= 0)
@@ -170,7 +170,7 @@ i915_gem_object_wait_priority(struct drm_i915_gem_object *obj,
 
 		kfree(shared);
 	} else {
-		excl = dma_resv_get_excl_rcu(obj->base.resv);
+		excl = dma_resv_get_excl_unlocked(obj->base.resv);
 	}
 
 	if (excl) {

drivers/gpu/drm/i915/i915_request.c

@@ -1611,7 +1611,7 @@ i915_request_await_object(struct i915_request *to,
 			dma_fence_put(shared[i]);
 		kfree(shared);
 	} else {
-		excl = dma_resv_get_excl_rcu(obj->base.resv);
+		excl = dma_resv_get_excl_unlocked(obj->base.resv);
 	}
 
 	if (excl) {

drivers/gpu/drm/i915/i915_sw_fence.c

@@ -606,7 +606,7 @@ int i915_sw_fence_await_reservation(struct i915_sw_fence *fence,
 			dma_fence_put(shared[i]);
 		kfree(shared);
 	} else {
-		excl = dma_resv_get_excl_rcu(resv);
+		excl = dma_resv_get_excl_unlocked(resv);
 	}
 
 	if (ret >= 0 && excl && excl->ops != exclude) {

drivers/gpu/drm/nouveau/dispnv50/wndw.c

@@ -561,7 +561,7 @@ nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
 			asyw->image.handle[0] = ctxdma->object.handle;
 	}
 
-	asyw->state.fence = dma_resv_get_excl_rcu(nvbo->bo.base.resv);
+	asyw->state.fence = dma_resv_get_excl_unlocked(nvbo->bo.base.resv);
 	asyw->image.offset[0] = nvbo->offset;
 
 	if (wndw->func->prepare) {

drivers/gpu/drm/panfrost/panfrost_job.c

@@ -203,7 +203,7 @@ static void panfrost_acquire_object_fences(struct drm_gem_object **bos,
 	int i;
 
 	for (i = 0; i < bo_count; i++)
-		implicit_fences[i] = dma_resv_get_excl_rcu(bos[i]->resv);
+		implicit_fences[i] = dma_resv_get_excl_unlocked(bos[i]->resv);
 }
 
 static void panfrost_attach_object_fences(struct drm_gem_object **bos,

include/linux/dma-resv.h

@@ -229,7 +229,7 @@ dma_resv_excl_fence(struct dma_resv *obj)
 }
 
 /**
- * dma_resv_get_excl_rcu - get the reservation object's
+ * dma_resv_get_excl_unlocked - get the reservation object's
  * exclusive fence, without lock held.
  * @obj: the reservation object
  *
@@ -240,7 +240,7 @@ dma_resv_excl_fence(struct dma_resv *obj)
  * The exclusive fence or NULL if none
  */
 static inline struct dma_fence *
-dma_resv_get_excl_rcu(struct dma_resv *obj)
+dma_resv_get_excl_unlocked(struct dma_resv *obj)
 {
 	struct dma_fence *fence;