diff options
Diffstat (limited to 'drivers/md/raid10.c')
| -rw-r--r-- | drivers/md/raid10.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index a71277b640a..50ad8d2ae0e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1116,6 +1116,8 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) int found = 0; int mirror; mirror_info_t *p; + int first = 0; + int last = mddev->raid_disks - 1; if (mddev->recovery_cp < MaxSector) /* only hot-add to in-sync arrays, as recovery is @@ -1125,12 +1127,16 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) if (!enough(conf)) return 0; + if (rdev->raid_disk) + first = last = rdev->raid_disk; + if (rdev->saved_raid_disk >= 0 && + rdev->saved_raid_disk >= first && conf->mirrors[rdev->saved_raid_disk].rdev == NULL) mirror = rdev->saved_raid_disk; else - mirror = 0; - for ( ; mirror < mddev->raid_disks; mirror++) + mirror = first; + for ( ; mirror <= last ; mirror++) if ( !(p=conf->mirrors+mirror)->rdev) { blk_queue_stack_limits(mddev->queue, |