[PATCH] md: fix bug where new drives added to an md array sometimes don't sync properly
authorNeilBrown <neilb@suse.de>
Fri, 6 Oct 2006 07:44:04 +0000 (00:44 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 6 Oct 2006 15:53:41 +0000 (08:53 -0700)
This fixes a bug introduced in 2.6.18.

If a drive is added to a raid1 using older tools (mdadm-1.x or raidtools)
then it will be included in the array without any resync happening.

It has been submitted for 2.6.18.1.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/md/md.c

index cb8281605be8f7d23bbd0769309268b5f69d7c1a..57fa64f93e5f1815ce57c398d8f1ae9cc64d32b1 100644 (file)
@@ -3849,6 +3849,7 @@ static int hot_add_disk(mddev_t * mddev, dev_t dev)
        }
        clear_bit(In_sync, &rdev->flags);
        rdev->desc_nr = -1;
+       rdev->saved_raid_disk = -1;
        err = bind_rdev_to_array(rdev, mddev);
        if (err)
                goto abort_export;