md: fix handling of array level takeover that re-arranges devices.

[pandora-kernel.git] / drivers / md / md.h

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 7ab5ea1..10597bf 100644 (file)
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -78,6 +78,9 @@ struct mdk_rdev_s
 
        int desc_nr;                    /* descriptor index in the superblock */
        int raid_disk;                  /* role of device in array */
+       int new_raid_disk;              /* role that the device will have in
+                                        * the array after a level-change completes.
+                                        */
        int saved_raid_disk;            /* role that device used to have in the
                                         * array and could again if we did a partial
                                         * resync from the bitmap