Re: [PATCH v2 2/5] lib: add error_report_notify to collect debugging tools' reports

[Alexander Potapenko]

> > > +
> > > +     /* Pairs with acquire in last_report_show(). */
> > > +     atomic_inc_return_release(&num_reports);
> > > +     schedule_delayed_work(&reporting_done, 0);
> >
> > Why delayed work when it gets queued immediately?
>
> Because error reports may be sent from a place where waiting is
> forbidden (in the case of KFENCE that is the page fault handler).
> A delayed work ensures the notification occurs in a wait-safe context.
>
Agreed, there's actually no point in calling schedule_delayed_work()
instead of schedule_work() here.