nfsrv_freeopenowner
static void nfsrv_freeopenowner(struct nfsstate *stp, int cansleep,
nfsrv_freeopenowner(stp, 0, p);
nfsrv_freeopenowner(stp, 1, p);
nfsrv_freeopenowner(stp->ls_openowner, 0, p);
nfsrv_freeopenowner(stp, 0, p);