1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 3931299788dc..563ede31d5fc 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -149,7 +149,8 @@ struct mddev_s
                                                        * are happening, so run/
                                                        * takeover/stop are not safe
                                                        */
-
+        int                             ready; /* See when safe to pass
+                                                * IO requests down */
         struct gendisk                  *gendisk;
 
         struct kobject                  kobj;