* Oleg Nesterov <[email protected]> wrote:
> > +start_mutex_timer(struct timer_list *timer, unsigned long time,
> > + unsigned long *expire)
> > +{
> > + *expire = time + jiffies;
> > + init_timer(timer);
> > + timer->expires = *expire;
> > + timer->data = (unsigned long)current;
> > + timer->function = process_timeout;
> > + add_timer(timer);
> > +}
>
> How about
> setup_timer(&timer, process_timeout, (unsigned long)current);
> __mod_timer(&timer, *expire);
> ?
i've removed the timer code from the latest queue - because it's unused
and we can add it back later. But you are right, it was racy (Arjan
noticed the signal race too), because this codepath in -rt relied on
guaranteed lock-passing. (while mutex.c does a trylock)
Ingo
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