diff options
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2930fc26a85..1aebd3ef80b 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3703,6 +3703,8 @@ static int make_request(struct request_queue *q, struct bio * bi) return 0; } +static sector_t raid5_size(mddev_t *mddev, sector_t sectors, int raid_disks); + static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped) { /* reshaping is quite different to recovery/resync so it is @@ -3781,7 +3783,7 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped j == sh->qd_idx) continue; s = compute_blocknr(sh, j); - if (s < mddev->array_sectors) { + if (s < raid5_size(mddev, 0, 0)) { skipped = 1; continue; } @@ -4700,6 +4702,9 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors) sectors &= ~((sector_t)mddev->chunk_size/512 - 1); md_set_array_sectors(mddev, raid5_size(mddev, sectors, mddev->raid_disks)); + if (mddev->array_sectors > + raid5_size(mddev, sectors, mddev->raid_disks)) + return -EINVAL; set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; if (sectors > mddev->dev_sectors && mddev->recovery_cp == MaxSector) { @@ -4837,7 +4842,7 @@ static void end_reshape(raid5_conf_t *conf) if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) { mddev_t *mddev = conf->mddev; - md_set_array_sectors(mddev, raid5_size(mddev, 0, + md_set_array_sectors_lock(mddev, raid5_size(mddev, 0, conf->raid_disks)); set_capacity(mddev->gendisk, mddev->array_sectors); mddev->changed = 1; |