1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index cccbadb31ba..6f797eceae3 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -145,6 +145,10 @@ struct mddev_s
         int                             suspended;
         atomic_t                        active_io;
         int                             ro;
+        int                             sysfs_active; /* set when sysfs deletes
+                                                       * are happening, so run/
+                                                       * takeover/stop are not safe
+                                                       */
 
         struct gendisk                  *gendisk;