diff options
Diffstat (limited to 'drivers/md/dm-raid.c')
| -rw-r--r-- | drivers/md/dm-raid.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 86cb7e5d83d5..f53bb389c18f 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -668,7 +668,14 @@ static int super_load(struct md_rdev *rdev, struct md_rdev *refdev) return ret; sb = page_address(rdev->sb_page); - if (sb->magic != cpu_to_le32(DM_RAID_MAGIC)) { + + /* + * Two cases that we want to write new superblocks and rebuild: + * 1) New device (no matching magic number) + * 2) Device specified for rebuild (!In_sync w/ offset == 0) + */ + if ((sb->magic != cpu_to_le32(DM_RAID_MAGIC)) || + (!test_bit(In_sync, &rdev->flags) && !rdev->recovery_offset)) { super_sync(rdev->mddev, rdev); set_bit(FirstUse, &rdev->flags); @@ -745,11 +752,8 @@ static int super_init_validation(struct mddev *mddev, struct md_rdev *rdev) */ rdev_for_each(r, t, mddev) { if (!test_bit(In_sync, &r->flags)) { - if (!test_bit(FirstUse, &r->flags)) - DMERR("Superblock area of " - "rebuild device %d should have been " - "cleared.", r->raid_disk); - set_bit(FirstUse, &r->flags); + DMINFO("Device %d specified for rebuild: " + "Clearing superblock", r->raid_disk); rebuilds++; } else if (test_bit(FirstUse, &r->flags)) new_devs++; |