Date: Mon, 9 Jun 2008 15:11:36 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Alok Kataria <akataria@vmware.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, LKML <linux-kernel@vger.kernel.org>,
       Dan Hecht <dhecht@vmware.com>, Tim Mann <mann@vmware.com>,
       Zachary Amsden <zach@vmware.com>, Sahil Rihan <srihan@vmware.com>
Subject: Re: [RFC PATCH] x86:Use cpu_khz for loops_per_jiffy calculation
Message-ID: <20080609131136.GA27588@elte.hu>
References: <1212540069.19290.57.camel@promb-2n-dhcp368.eng.vmware.com>
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* Alok Kataria <akataria@vmware.com> wrote:

> --- linux-2.6.orig/arch/x86/kernel/tsc_32.c	2008-05-27 12:28:16.000000000 -0700
> +++ linux-2.6/arch/x86/kernel/tsc_32.c	2008-06-03 17:28:46.000000000 -0700
> @@ -401,6 +401,7 @@
>  void __init tsc_init(void)
>  {
>  	int cpu;
> +	u64 lpj;
>  
>  	if (!cpu_has_tsc || tsc_disabled) {
>  		/* Disable the TSC in case of !cpu_has_tsc */
> @@ -421,6 +422,10 @@
>  		return;
>  	}
>  
> +	lpj = ((u64)cpu_khz * 1000);
> +	do_div(lpj, HZ);
> +	lpj_tsc = lpj;

that wont work very well as lpj_tsc is not declared.

	Ingo
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