HFS_SUPER_MAGIC
if (mdb->drSigWord == cpu_to_be16(HFS_SUPER_MAGIC))
if (mdb->drSigWord != cpu_to_be16(HFS_SUPER_MAGIC)) {
if (mdb2->drSigWord == cpu_to_be16(HFS_SUPER_MAGIC)) {
buf->f_type = HFS_SUPER_MAGIC;