diff options
Diffstat (limited to 'drivers/md/multipath.c')
| -rw-r--r-- | drivers/md/multipath.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index e968116e0de9..c4779ccba1c3 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -281,13 +281,18 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) { multipath_conf_t *conf = mddev->private; struct request_queue *q; - int found = 0; + int err = -EEXIST; int path; struct multipath_info *p; + int first = 0; + int last = mddev->raid_disks - 1; + + if (rdev->raid_disk >= 0) + first = last = rdev->raid_disk; print_multipath_conf(conf); - for (path=0; path<mddev->raid_disks; path++) + for (path = first; path <= last; path++) if ((p=conf->multipaths+path)->rdev == NULL) { q = rdev->bdev->bd_disk->queue; blk_queue_stack_limits(mddev->queue, q); @@ -307,11 +312,13 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) rdev->raid_disk = path; set_bit(In_sync, &rdev->flags); rcu_assign_pointer(p->rdev, rdev); - found = 1; + err = 0; + break; } print_multipath_conf(conf); - return found; + + return err; } static int multipath_remove_disk(mddev_t *mddev, int number) @@ -497,7 +504,7 @@ static int multipath_run (mddev_t *mddev) /* * Ok, everything is just fine now */ - mddev->array_size = mddev->size; + mddev->array_sectors = mddev->size * 2; mddev->queue->unplug_fn = multipath_unplug; mddev->queue->backing_dev_info.congested_fn = multipath_congested; |