ud_bmap_read
if (error = ud_bmap_read(ip, (u_offset_t)(io_off + done_len),
if (ud_bmap_read(ip, io_off, &bn, &contig) != 0 || bn == UDF_HOLE) {
if (error = ud_bmap_read(ip, off, &bn, &contig))
if (error = ud_bmap_read(ip, off, &bn, &contig)) {
if (error = ud_bmap_read(ip, (u_offset_t)(start + io_off),
if (error = ud_bmap_read(ip,
int32_t ud_bmap_read(struct ud_inode *, u_offset_t,