UNIONFSHASHMASK
return (&(unp->un_hashtbl[vfs_hash_index(lookup) & UNIONFSHASHMASK]));
hashdestroy(unp->un_hashtbl, M_UNIONFSHASH, UNIONFSHASHMASK);
KASSERT(hashmask == UNIONFSHASHMASK,
for (count = 0; count <= UNIONFSHASHMASK; count++) {
hashdestroy(unp->un_hashtbl, M_UNIONFSHASH, UNIONFSHASHMASK);