znode_phys_t
znode_phys_t *zp = (znode_phys_t *)dn->dn_bonus;
if (psize + sizeof(znode_phys_t) <= dn->dn_bonuslen &&
sizeof(znode_phys_t) <= sizeof(dn->dn_bonus)) {
memcpy(path, &dn->dn_bonus[sizeof(znode_phys_t)], psize);
const znode_phys_t *zp = (const znode_phys_t *) dn->dn_bonus;