diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 1dd13bb52940..b54fefc85b66 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1592,6 +1592,15 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev) if (rdev->raid_disk >= 0) first = last = rdev->raid_disk; + /* + * find the disk ... but prefer rdev->saved_raid_disk + * if possible. + */ + if (rdev->saved_raid_disk >= 0 && + rdev->saved_raid_disk >= first && + conf->mirrors[rdev->saved_raid_disk].rdev == NULL) + first = last = rdev->saved_raid_disk; + for (mirror = first; mirror <= last; mirror++) { p = conf->mirrors+mirror; if (!p->rdev) { |