vop_old_mknod
DO_OPS(ops, error, &ap, vop_old_mknod);
vop_old_mknod(*(dvp)->v_ops, dvp, vpp, cnp, vap)
int (*vop_old_mknod)(struct vop_old_mknod_args *);
int vop_old_mknod(struct vop_ops *ops, struct vnode *dvp,
.vop_old_mknod = (void *)dead_badop,
.vop_old_mknod = ext2_mknod,
.vop_old_mknod = (void *)fifo_badop,
.vop_old_mknod = msdosfs_mknod,
.vop_old_mknod = nfs_mknod,
.vop_old_mknod = (void *)procfs_badop,
.vop_old_mknod = smbfs_mknod,
.vop_old_mknod = ufs_mknod,