nfsrv_getlockfh
ret = nfsrv_getlockfh(vp, 0, NULL, &nfh, p);
static int nfsrv_getlockfh(vnode_t vp, u_short flags,
getlckret = nfsrv_getlockfh(vp, new_stp->ls_flags, NULL, &nfh, p);
getfhret = nfsrv_getlockfh(vp, new_stp->ls_flags, new_lfp,
getfhret = nfsrv_getlockfh(vp, new_stp->ls_flags, new_lfp,
error = nfsrv_getlockfh(vp, NFSLCK_CHECK, NULL, &nfh, p);
error = nfsrv_getlockfh(vp, NFSLCK_CHECK, NULL, &nfh, p);