1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 4e26ef2cacca..1a6f9f2f6282 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -132,6 +132,14 @@ struct mddev_s
 
         char                            uuid[16];
 
+        /* If the array is being reshaped, we need to record the
+         * new shape and an indication of where we are up to.
+         * This is written to the superblock.
+         * If reshape_position is MaxSector, then no reshape is happening (yet).
+         */
+        sector_t                        reshape_position;
+        int                             delta_disks, new_level, new_layout, new_chunk;
+
         struct mdk_thread_s             *thread;        /* management thread */
         struct mdk_thread_s             *sync_thread;   /* doing resync or reconstruct */
         sector_t                        curr_resync;    /* blocks scheduled */