+/**
+ * Add segment without lock
+ *
+ * @param sm Segment manager
+ * @param segment_size Size of segment to be added
+ * @param notify_app Flag set if app notification requested
+ */
+int segment_manager_add_segment (segment_manager_t *sm, uword segment_size,
+ u8 notify_app);
+
+/**
+ * Add segment with lock
+ *
+ * @param sm Segment manager
+ * @param segment_size Size of segment to be added
+ * @param flags Flags to be set on segment
+ */
+int segment_manager_add_segment2 (segment_manager_t *sm, uword segment_size,
+ u8 flags);