--- api.py	2015-09-17 10:22:15.327509256 +0200
+++ api.py.new	2015-09-17 10:19:38.141175929 +0200
@@ -2773,7 +2773,9 @@ def volume_type_access_remove(context, t
     count = _volume_type_access_query(context).\
         filter_by(volume_type_id=volume_type_id).\
         filter_by(project_id=project_id).\
-        soft_delete(synchronize_session=False)
+        update({'deleted': True,
+                'deleted_at': timeutils.utcnow(),
+                'updated_at': literal_column('updated_at')})
     if count == 0:
         raise exception.VolumeTypeAccessNotFound(
             volume_type_id=type_id, project_id=project_id)