vdpa/mlx5: Rename mr_mtx -> lock

Now that the mr resources have their own namespace in the
struct, give the lock a clearer name.
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20240830105838.2666587-7-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/vdpa/mlx5/core/mlx5_vdpa.h

@@ -87,7 +87,7 @@ struct mlx5_vdpa_mr_resources {
 	struct mlx5_vdpa_mr *mr[MLX5_VDPA_NUM_AS];
 	unsigned int group2asid[MLX5_VDPA_NUMVQ_GROUPS];
 	struct list_head mr_list_head;
-	struct mutex mr_mtx;
+	struct mutex lock;
 };
 
 struct mlx5_vdpa_dev {

drivers/vdpa/mlx5/core/mr.c

@@ -666,9 +666,9 @@ static void _mlx5_vdpa_put_mr(struct mlx5_vdpa_dev *mvdev,
 void mlx5_vdpa_put_mr(struct mlx5_vdpa_dev *mvdev,
 		      struct mlx5_vdpa_mr *mr)
 {
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 	_mlx5_vdpa_put_mr(mvdev, mr);
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 }
 
 static void _mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev,
@@ -683,9 +683,9 @@ static void _mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev,
 void mlx5_vdpa_get_mr(struct mlx5_vdpa_dev *mvdev,
 		      struct mlx5_vdpa_mr *mr)
 {
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 	_mlx5_vdpa_get_mr(mvdev, mr);
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 }
 
 void mlx5_vdpa_update_mr(struct mlx5_vdpa_dev *mvdev,
@@ -694,19 +694,19 @@ void mlx5_vdpa_update_mr(struct mlx5_vdpa_dev *mvdev,
 {
 	struct mlx5_vdpa_mr *old_mr = mvdev->mres.mr[asid];
 
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 
 	_mlx5_vdpa_put_mr(mvdev, old_mr);
 	mvdev->mres.mr[asid] = new_mr;
 
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 }
 
 static void mlx5_vdpa_show_mr_leaks(struct mlx5_vdpa_dev *mvdev)
 {
 	struct mlx5_vdpa_mr *mr;
 
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 
 	list_for_each_entry(mr, &mvdev->mres.mr_list_head, mr_list) {
 
@@ -715,7 +715,7 @@ static void mlx5_vdpa_show_mr_leaks(struct mlx5_vdpa_dev *mvdev)
 				       mr, mr->mkey, refcount_read(&mr->refcount));
 	}
 
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 
 }
 
@@ -782,9 +782,9 @@ struct mlx5_vdpa_mr *mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev,
 	if (!mr)
 		return ERR_PTR(-ENOMEM);
 
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 	err = _mlx5_vdpa_create_mr(mvdev, mr, iotlb);
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 
 	if (err)
 		goto out_err;

drivers/vdpa/mlx5/core/resources.c

@@ -256,7 +256,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev)
 		mlx5_vdpa_warn(mvdev, "resources already allocated\n");
 		return -EINVAL;
 	}
-	mutex_init(&mvdev->mres.mr_mtx);
+	mutex_init(&mvdev->mres.lock);
 	res->uar = mlx5_get_uars_page(mdev);
 	if (IS_ERR(res->uar)) {
 		err = PTR_ERR(res->uar);
@@ -301,7 +301,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev)
 err_uctx:
 	mlx5_put_uars_page(mdev, res->uar);
 err_uars:
-	mutex_destroy(&mvdev->mres.mr_mtx);
+	mutex_destroy(&mvdev->mres.lock);
 	return err;
 }
 
@@ -318,7 +318,7 @@ void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev)
 	dealloc_pd(mvdev, res->pdn, res->uid);
 	destroy_uctx(mvdev, res->uid);
 	mlx5_put_uars_page(mvdev->mdev, res->uar);
-	mutex_destroy(&mvdev->mres.mr_mtx);
+	mutex_destroy(&mvdev->mres.lock);
 	res->valid = false;
 }
 

drivers/vdpa/mlx5/net/mlx5_vnet.c

@@ -3639,10 +3639,10 @@ static int mlx5_set_group_asid(struct vdpa_device *vdev, u32 group,
 
 	mvdev->mres.group2asid[group] = asid;
 
-	mutex_lock(&mvdev->mres.mr_mtx);
+	mutex_lock(&mvdev->mres.lock);
 	if (group == MLX5_VDPA_CVQ_GROUP && mvdev->mres.mr[asid])
 		err = mlx5_vdpa_update_cvq_iotlb(mvdev, mvdev->mres.mr[asid]->iotlb, asid);
-	mutex_unlock(&mvdev->mres.mr_mtx);
+	mutex_unlock(&mvdev->mres.lock);
 
 	return err;
 }