diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index ea2a58d..f33a729 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2154,11 +2154,25 @@
 	oldpool = conf->r1bio_pool;
 	conf->r1bio_pool = newpool;
 
-	for (d=d2=0; d < conf->raid_disks; d++)
-		if (conf->mirrors[d].rdev) {
-			conf->mirrors[d].rdev->raid_disk = d2;
-			newmirrors[d2++].rdev = conf->mirrors[d].rdev;
+	for (d = d2 = 0; d < conf->raid_disks; d++) {
+		mdk_rdev_t *rdev = conf->mirrors[d].rdev;
+		if (rdev && rdev->raid_disk != d2) {
+			char nm[20];
+			sprintf(nm, "rd%d", rdev->raid_disk);
+			sysfs_remove_link(&mddev->kobj, nm);
+			rdev->raid_disk = d2;
+			sprintf(nm, "rd%d", rdev->raid_disk);
+			sysfs_remove_link(&mddev->kobj, nm);
+			if (sysfs_create_link(&mddev->kobj,
+					      &rdev->kobj, nm))
+				printk(KERN_WARNING
+				       "md/raid1: cannot register "
+				       "%s for %s\n",
+				       nm, mdname(mddev));
 		}
+		if (rdev)
+			newmirrors[d2++].rdev = rdev;
+	}
 	kfree(conf->mirrors);
 	conf->mirrors = newmirrors;
 	kfree(conf->poolinfo);