On Fri, Apr 22, 2022 at 11:52 PM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> On Fri, 22 Apr 2022 18:45:46 +0800
> patrick wang <patrick.wang.shcn@xxxxxxxxx> wrote:
>
> > Yes, and not just RISC-V. It's arch-independent. It's the internal change of
> > stop machine implementation.
> >
> > ----------------------------------------------------------------
> > Former stop machine wait loop:
> > do {
> > cpu_relax(); => macro
> > ...
> > } while (curstate != STOPMACHINE_EXIT);
> > -----------------------------------------------------------------
> > Current stop machine wait loop:
> > do {
> > stop_machine_yield(cpumask); => function (notraced)
> > ...
> > touch_nmi_watchdog(); => function (notraced, inside calls also notraced)
> > ...
> > rcu_momentary_dyntick_idle(); => function (notraced, inside calls traced)
> > } while (curstate != MULTI_STOP_EXIT);
> > ------------------------------------------------------------------
>
> That makes much more sense. Can you add that to the change log.
>
Sure, I will rewrite the log message. And thank you for the comments
and advices.
Thanks,
Patrick
> Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
>
> -- Steve
