diff options
| -rw-r--r-- | drivers/md/raid10.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ed3c6fbe65f7..1c3393467667 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4245,6 +4245,10 @@ static int raid10_check_reshape(struct mddev *mddev) if (conf->geo.far_copies != 1 && !conf->geo.far_offset) return -EINVAL; + if (mddev->bitmap_id == ID_LLBITMAP && + mddev->new_chunk_sectors && + mddev->new_chunk_sectors < mddev->chunk_sectors) + return -EOPNOTSUPP; if (setup_geo(&geo, mddev, geo_start) != conf->copies) /* mustn't change number of copies */ |