label_offset
uint64_t label_offset;
label_offset = 0;
label_offset = psize - VDEV_LABELS * sizeof (vdev_label_t);
return (offset + l * sizeof (vdev_label_t) + label_offset);
off_t label_offset;
label_offset = (part_start + DK_LABEL_LOC) * sec_sz;
if (lseek(epp->dev_fd, label_offset, SEEK_SET) < 0) {
label_offset(size, l)) != sizeof (vdev_label_t)) {
if (pwrite64(fd, label, label_size, label_offset(size, l) +
label_offset(size, l)) != sizeof (vdev_label_t))