1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 3931299788d..563ede31d5f 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;