1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 81c98d6e35e9..293d5ce62a21 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -33,6 +33,17 @@
 #define SECTOR_SHIFT 9
 
 /*
+ * Definitions of return values from target end_io function.
+ */
+#define DM_ENDIO_INCOMPLETE     1
+
+/*
+ * Definitions of return values from target map function.
+ */
+#define DM_MAPIO_SUBMITTED      0
+#define DM_MAPIO_REMAPPED       1
+
+/*
  * Suspend feature flags
  */
 #define DM_SUSPEND_LOCKFS_FLAG          (1 << 0)