TOK_INCR
atomic_add_long(&tok->t_count, TOK_INCR);
if ((atomic_fetchadd_long(&tok->t_count, TOK_INCR) & TOK_EXCLUSIVE) == 0) {
-TOK_INCR);
count -= TOK_INCR;
atomic_add_long(&tok->t_count, TOK_INCR);
count = atomic_fetchadd_long(&tok->t_count, -TOK_INCR);