zfsctl_root_lookup
int zfsctl_root_lookup(vnode_t *dvp, char *nm, vnode_t **vpp, pathname_t *pnp,
error = zfsctl_root_lookup(zfsvfs->z_ctldir, "snapshot", &dvp,
error = zfsctl_root_lookup(zfsvfs->z_ctldir, "snapshot", &dvp,
{ VOPNAME_LOOKUP, { .vop_lookup = zfsctl_root_lookup } },
error = zfsctl_root_lookup(zfsvfs->z_parent->z_ctldir,
VERIFY(zfsctl_root_lookup(*vpp, "snapshot", vpp, NULL,