linux-kernel - Re: [tip:sched/core] sched: cpuacct: Use bigger percpu counter batch values for stats counters

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Message-ID: <20090512102412.GG6351@balbir.in.ibm.com>
Date:	Tue, 12 May 2009 15:54:12 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Ingo Molnar <mingo@...e.hu>, mingo@...hat.com, hpa@...or.com,
	linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl,
	schwidefsky@...ibm.com, balajirrao@...il.com,
	dhaval@...ux.vnet.ibm.com, bharata@...ux.vnet.ibm.com,
	tglx@...utronix.de, kamezawa.hiroyu@...fujitsu.com,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:sched/core] sched: cpuacct: Use bigger percpu counter
	batch values for stats counters

* KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> [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? 

-- 
	Balbir
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