nfsrv_freelockowner
static void nfsrv_freelockowner(struct nfsstate *stp, vnode_t vp, int cansleep,
nfsrv_freelockowner(tstp, vp, cansleep, p);
nfsrv_freelockowner(stp, NULL, 0, p);
nfsrv_freelockowner(stp, NULL, 0, p);