linux-kernel - Re: [PATCH] [2/5] Use 2000 offset for 32bit kernels

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Message-ID: <alpine.LFD.1.00.0802201049310.7583@apollo.tec.linutronix.de>
Date:	Wed, 20 Feb 2008 11:07:02 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <ak@...e.de>
cc:	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [2/5] Use 2000 offset for 32bit kernels

On Sat, 16 Feb 2008, Thomas Gleixner wrote:
> On Sat, 9 Feb 2008, Andi Kleen wrote:
> > 
> > We know it is already after 2000.
> > 
> > This extends the effective lifetime of 32bit systems by 8 years:
> > from 2030 to 2038.

Could you please explain what magic math does the 2030 -> 2038
extension ?

According to the code the 1970 comparison works until 2069:

	year += 1900;
	if (year < 1970)
		year += 100;

I keep the patch nevertheless as it removes ifdeffery, but I change
the commit log to something sensible and remove the year < 1970 check
as well as it is not longer necessary.

Thanks,

	tglx
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