cleanup: reformat generateVolFromSnap() to rbdSnapshot.toVolume()

Signed-off-by: Niels de Vos <ndevos@ibm.com>

internal/rbd/controllerserver.go

@@ -666,7 +666,7 @@ func (cs *ControllerServer) createVolumeFromSnapshot(
 
 	// update parent name(rbd image name in snapshot)
 	rbdSnap.RbdImageName = rbdSnap.RbdSnapName
-	parentVol := generateVolFromSnap(rbdSnap)
+	parentVol := rbdSnap.toVolume()
 	// as we are operating on single cluster reuse the connection
 	parentVol.conn = rbdVol.conn.Copy()
 
@@ -1237,7 +1237,7 @@ func cloneFromSnapshot(
 	cr *util.Credentials,
 	parameters map[string]string,
 ) (*csi.CreateSnapshotResponse, error) {
-	vol := generateVolFromSnap(rbdSnap)
+	vol := rbdSnap.toVolume()
 	err := vol.Connect(cr)
 	if err != nil {
 		uErr := undoSnapshotCloning(ctx, rbdVol, rbdSnap, vol, cr)
@@ -1322,7 +1322,7 @@ func (cs *ControllerServer) doSnapshotClone(
 	cr *util.Credentials,
 ) (*rbdVolume, error) {
 	// generate cloned volume details from snapshot
-	cloneRbd := generateVolFromSnap(rbdSnap)
+	cloneRbd := rbdSnap.toVolume()
 	defer cloneRbd.Destroy()
 	// add image feature for cloneRbd
 	f := []string{librbd.FeatureNameLayering, librbd.FeatureNameDeepFlatten}
@@ -1480,7 +1480,7 @@ func (cs *ControllerServer) DeleteSnapshot(
 	// Deleting snapshot and cloned volume
 	log.DebugLog(ctx, "deleting cloned rbd volume %s", rbdSnap.RbdSnapName)
 
-	rbdVol := generateVolFromSnap(rbdSnap)
+	rbdVol := rbdSnap.toVolume()
 
 	err = rbdVol.Connect(cr)
 	if err != nil {
@@ -1511,7 +1511,7 @@ func (cs *ControllerServer) DeleteSnapshot(
 // cleanUpImageAndSnapReservation cleans up the image from the trash and
 // snapshot reservation in rados OMAP.
 func cleanUpImageAndSnapReservation(ctx context.Context, rbdSnap *rbdSnapshot, cr *util.Credentials) error {
-	rbdVol := generateVolFromSnap(rbdSnap)
+	rbdVol := rbdSnap.toVolume()
 	err := rbdVol.Connect(cr)
 	if err != nil {
 		return status.Error(codes.Internal, err.Error())

internal/rbd/rbd_journal.go

@@ -162,7 +162,7 @@ func checkSnapCloneExists(
 			snapData.ImagePool, rbdSnap.Pool)
 	}
 
-	vol := generateVolFromSnap(rbdSnap)
+	vol := rbdSnap.toVolume()
 	defer vol.Destroy()
 	err = vol.Connect(cr)
 	if err != nil {

internal/rbd/rbd_util.go

@@ -1053,7 +1053,7 @@ func genSnapFromSnapID(
 // updateSnapshotDetails will copy the details from the rbdVolume to the
 // rbdSnapshot. example copying size from rbdVolume to rbdSnapshot.
 func updateSnapshotDetails(rbdSnap *rbdSnapshot) error {
-	vol := generateVolFromSnap(rbdSnap)
+	vol := rbdSnap.toVolume()
 	err := vol.Connect(rbdSnap.conn.Creds)
 	if err != nil {
 		return err

internal/rbd/snapshot.go

@@ -98,23 +98,24 @@ func cleanUpSnapshot(
 	return nil
 }
 
-func generateVolFromSnap(rbdSnap *rbdSnapshot) *rbdVolume {
-	vol := new(rbdVolume)
-	vol.ClusterID = rbdSnap.ClusterID
-	vol.VolID = rbdSnap.VolID
-	vol.Monitors = rbdSnap.Monitors
-	vol.Pool = rbdSnap.Pool
-	vol.JournalPool = rbdSnap.JournalPool
-	vol.RadosNamespace = rbdSnap.RadosNamespace
-	vol.RbdImageName = rbdSnap.RbdSnapName
-	vol.ImageID = rbdSnap.ImageID
+func (rbdSnap *rbdSnapshot) toVolume() *rbdVolume {
+	return &rbdVolume{
+		rbdImage: rbdImage{
+			ClusterID:      rbdSnap.ClusterID,
+			VolID:          rbdSnap.VolID,
+			Monitors:       rbdSnap.Monitors,
+			Pool:           rbdSnap.Pool,
+			JournalPool:    rbdSnap.JournalPool,
+			RadosNamespace: rbdSnap.RadosNamespace,
+			RbdImageName:   rbdSnap.RbdSnapName,
+			ImageID:        rbdSnap.ImageID,
 			// copyEncryptionConfig cannot be used here because the volume and the
 			// snapshot will have the same volumeID which cases the panic in
 			// copyEncryptionConfig function.
-	vol.blockEncryption = rbdSnap.blockEncryption
-	vol.fileEncryption = rbdSnap.fileEncryption
-
-	return vol
+			blockEncryption: rbdSnap.blockEncryption,
+			fileEncryption:  rbdSnap.fileEncryption,
+		},
+	}
 }
 
 func undoSnapshotCloning(