get_dcache
if (in = get_dcache(dv, path, ip->i_number)) {
cino = get_dcache(mac_get_dev(), component, dino);
if ((in = get_dcache(devp->di_dcookie, path, ip->i_number)) != 0)
(get_dcache(devp->di_dcookie, dp->d_name, dp->d_ino) != 0))
extern int get_dcache(int dev, char *name, int pnum);