#define DM_TARGET_IMMUTABLE 0x00000004
#define dm_target_is_immutable(type) ((type)->features & DM_TARGET_IMMUTABLE)
+/*
+ * Indicates that a target may replace any target; even immutable targets.
+ * .map, .map_rq, .clone_and_map_rq and .release_clone_rq are all defined.
+ */
+#define DM_TARGET_WILDCARD 0x00000008
+#define dm_target_is_wildcard(type) ((type)->features & DM_TARGET_WILDCARD)
+
/*
* Some targets need to be sent the same WRITE bio severals times so
* that they can send copies of it to different devices. This function