md: notify level changes through sysfs.
Level changes can be very significant, so make sure
to notify them via sysfs.
Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 46bdf4b..c5a1b07 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3059,6 +3059,7 @@
set_bit(MD_CHANGE_DEVS, &mddev->flags);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
md_wakeup_thread(mddev->thread);
+ sysfs_notify(&mddev->kobj, NULL, "level");
return rv;
}