1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index fce02073f1a4..d9138885b87f 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -296,6 +296,7 @@ struct mddev_s
                 unsigned long           chunksize;
                 unsigned long           daemon_sleep; /* how many seconds between updates? */
                 unsigned long           max_write_behind; /* write-behind mode */
+                int                     external;
         } bitmap_info;
 
         struct list_head                all_mddevs;