nfscl_tryopen
static int nfscl_tryopen(struct nfsmount *, vnode_t , u_int8_t *, int,
error = nfscl_tryopen(nmp, NULL, op->nfso_fh,
error = nfscl_tryopen(nmp, NULL, nop->nfso_fh,
error = nfscl_tryopen(nmp, vp, np->n_v4->n4_data, np->n_v4->n4_fhlen,
error = nfscl_tryopen(nmp, vp, np->n_v4->n4_data,