md: Correctly handle device removal via sysfs
Writing "none" to "../md/dev-xx/slot" removes that device
from being an active part of the array, but it didn't
set ->raid_disk to -1 to record this fact.
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 7dcc740..766be87 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2385,6 +2385,7 @@
return err;
sprintf(nm, "rd%d", rdev->raid_disk);
sysfs_remove_link(&rdev->mddev->kobj, nm);
+ rdev->raid_disk = -1;
set_bit(MD_RECOVERY_NEEDED, &rdev->mddev->recovery);
md_wakeup_thread(rdev->mddev->thread);
} else if (rdev->mddev->pers) {