diff options
Diffstat (limited to 'drivers/md/raid0.c')
| -rw-r--r-- | drivers/md/raid0.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 9aebb4c93b6..bb0df6a1844 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -263,12 +263,25 @@ static int raid0_mergeable_bvec(struct request_queue *q, return max; } +static sector_t raid0_size(mddev_t *mddev, sector_t sectors, int raid_disks) +{ + sector_t array_sectors = 0; + mdk_rdev_t *rdev; + + WARN_ONCE(sectors || raid_disks, + "%s does not support generic reshape\n", __func__); + + list_for_each_entry(rdev, &mddev->disks, same_set) + array_sectors += rdev->sectors; + + return array_sectors; +} + static int raid0_run (mddev_t *mddev) { unsigned cur=0, i=0, nb_zone; s64 sectors; raid0_conf_t *conf; - mdk_rdev_t *rdev; if (mddev->chunk_size == 0) { printk(KERN_ERR "md/raid0: non-zero chunk size required.\n"); @@ -293,9 +306,7 @@ static int raid0_run (mddev_t *mddev) goto out_free_conf; /* calculate array device size */ - mddev->array_sectors = 0; - list_for_each_entry(rdev, &mddev->disks, same_set) - mddev->array_sectors += rdev->sectors; + mddev->array_sectors = raid0_size(mddev, 0, 0); printk(KERN_INFO "raid0 : md_size is %llu sectors.\n", (unsigned long long)mddev->array_sectors); @@ -511,6 +522,7 @@ static struct mdk_personality raid0_personality= .run = raid0_run, .stop = raid0_stop, .status = raid0_status, + .size = raid0_size, }; static int __init raid0_init (void) |