vop_nmknod
.vop_nmknod = vop_compat_nmknod,
.vop_nmknod = journal_nmknod,
DO_OPS(ops, error, &ap, vop_nmknod);
DO_OPS(ap->a_head.a_ops, error, ap, vop_nmknod);
vop_nmknod((nch)->mount->mnt_vn_use_ops, nch, dvp, vpp, cred, vap)
int (*vop_nmknod)(struct vop_nmknod_args *);
int vop_nmknod(struct vop_ops *ops, struct nchandle *nch, struct vnode *dvp,
.vop_nmknod = DEVFS_BADOP,
.vop_nmknod = dirfs_nmknod,
.vop_nmknod = fuse_vop_nmknod,
.vop_nmknod = hammer_vop_nmknod,
.vop_nmknod = hammer2_vop_nmknod,
.vop_nmknod = null_nmknod,
.vop_nmknod = tmpfs_nmknod,
int (*vop_nmknod)(struct vop_nmknod_args *);
.vop_nmknod = hammer2_vop_nmknod,