Commit a8461a61 authored by NeilBrown's avatar NeilBrown
Browse files

md/raid0: check for bitmap compatability when changing raid levels. 



If an array has a bitmap, then it cannot be converted to raid0.

Reported-by: default avatarXiao Ni <xni@redhat.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent ac7e50a3

drivers/md/raid0.c

+6 −0
Original line number Diff line number Diff line
@@ -685,6 +685,12 @@ static void *raid0_takeover(struct mddev *mddev) 
	 *  raid10 - assuming we have all necessary active disks

	 *  raid1 - with (N -1) mirror drives faulty

	 */



	if (mddev->bitmap) {

		printk(KERN_ERR "md/raid0: %s: cannot takeover array with bitmap\n",

		       mdname(mddev));

		return ERR_PTR(-EBUSY);

	}

	if (mddev->level == 4)

		return raid0_takeover_raid45(mddev);