Re: [tip:sched/core] sched: cpuacct: Use bigger percpu counterbatch values for stats counters

From: Ingo Molnar
Date: Tue May 12 2009 - 06:30:25 EST



* Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote:

> * KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> [2009-05-12 19:13:42]:
>
> > > > +#ifdef CONFIGCONFIG_SMP
> > > > + cpuacct_batch = jiffies_to_cputime(percpu_counter_batch);
> > > > +#endif
> > >
> > > Slow down and compile patches before sending them out.. please. That
> > > is a basic expectation if you expect it to be merged.
> >
> > Unfortunately, this mistake pass test successfully ;)
> > it because cpuacct_batch=0 works even SMP.
> >
>
> OK, BTW, using an #ifdef right in the middle of a function makes
> the code harder to read, can't we use an inline function to
> abstract out SMP?

or rather, to make cpuacct_batch have a sane value on UP too. (1?
0?)

Ingo
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