--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_MIRROR_TYPES_H
+#define CEPH_LIBRBD_MIRROR_TYPES_H
+
+namespace librbd {
+namespace mirror {
+
+enum PromotionState {
+ PROMOTION_STATE_PRIMARY,
+ PROMOTION_STATE_NON_PRIMARY,
+ PROMOTION_STATE_ORPHAN
+};
+
+} // namespace mirror
+} // namespace librbd
+
+#endif // CEPH_LIBRBD_MIRROR_TYPES_H
+