THIN_METADATA_MAX_SECTORS
ca->metadata_dev->bdev, THIN_METADATA_MAX_SECTORS);
if (bdev_size > THIN_METADATA_MAX_SECTORS)
bdev_size = THIN_METADATA_MAX_SECTORS;
bdev, THIN_METADATA_MAX_SECTORS);
if (metadata_dev_size > THIN_METADATA_MAX_SECTORS)
metadata_dev_size = THIN_METADATA_MAX_SECTORS;