#include <linux/blkdev.h>
#include <linux/raid/md_u.h>
#include <linux/seq_file.h>
+#include <linux/module.h>
#include <linux/slab.h>
#include "md.h"
#include "linear.h"
return -EINVAL;
rdev->raid_disk = rdev->saved_raid_disk;
+ rdev->saved_raid_disk = -1;
newconf = linear_conf(mddev,mddev->raid_disks+1);