int pthread_detach(pthread_t t)
{
/* Cannot detach a thread that's already exiting */
- if (a_xchg(&t->exitlock, 1))
+ if (a_swap(t->exitlock, 1))
return pthread_join(t, 0);
- t->detached = 1;
- t->exitlock = 0;
+ t->detached = 2;
+ __unlock(t->exitlock);
return 0;
}