md: simplify export_array()

We don't really need that for_each loop, or those MD_BUGs.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 73451f3..d96aa80 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2187,17 +2187,13 @@ static void kick_rdev_from_array(struct md_rdev * rdev)
 
 static void export_array(struct mddev *mddev)
 {
-       struct md_rdev *rdev, *tmp;
+       struct md_rdev *rdev;
 
-       rdev_for_each_safe(rdev, tmp, mddev) {
-               if (!rdev->mddev) {
-                       MD_BUG();
-                       continue;
-               }
+       while (!list_empty(&mddev->disks)) {
+               rdev = list_first_entry(&mddev->disks, struct md_rdev,
+                                       same_set);
                kick_rdev_from_array(rdev);
        }
-       if (!list_empty(&mddev->disks))
-               MD_BUG();
        mddev->raid_disks = 0;
        mddev->major_version = 0;
 }