linux-kernel - Re: [PATCH] cpuacct: add a branch prediction

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Date:	Thu, 26 Feb 2009 11:43:39 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	balbir@...ux.vnet.ibm.com
Cc:	Li Zefan <lizf@...fujitsu.com>, Ingo Molnar <mingo@...e.hu>,
	Paul Menage <menage@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cpuacct: add a branch prediction

On Thu, 2009-02-26 at 16:10 +0530, Balbir Singh wrote:

> My point is the likely/unlikely in this case depends on turning on/off
> CONFIG_CGROUP_CPUACCT? Am I missing something?

Yeah, that whole function is a stub for !CPUACCT

#ifdef CONFIG_CGROUP_CPUACCT
static void cpuacct_charge(struct task_struct *tsk, u64 cputime);
#else
static inline void cpuacct_charge(struct task_struct *tsk, u64 cputime) {}
#endif


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