linux-kernel - Re: [PATCH 1/6] x86: Change get_max

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Message-ID: <4D1BC77C.3040205@zytor.com>
Date:	Wed, 29 Dec 2010 15:42:52 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/6] x86: Change get_max_mapped() to inline

On 12/29/2010 03:37 PM, Yinghai Lu wrote:
> 
> or could just use unsigned long instead.
> 
> on 32bit it will be under 4g
> on 64bit unsigned long  is 64bit already.
> 

This is true, although it seems fragile -- the whole terminology and the
differences between 32 and 64 bits are just a huge headache.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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