linux-kernel - Re: [PATCH -tip] x86,apic: Use PAGE

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Message-ID: <20091108180335.GA17985@elte.hu>
Date:	Sun, 8 Nov 2009 19:03:35 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Cyrill Gorcunov <gorcunov@...il.com>
Cc:	"Maciej W. Rozycki" <macro@...ux-mips.org>,
	Yinghai Lu <yinghai@...nel.org>, x86team <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -tip] x86,apic: Use PAGE_SIZE instead of numbers


* Cyrill Gorcunov <gorcunov@...il.com> wrote:

> [Maciej W. Rozycki - Sun, Nov 08, 2009 at 05:28:05PM +0000]
> | On Sun, 8 Nov 2009, Cyrill Gorcunov wrote:
> | 
> | > The whole page is reserved for IO-APIC fixmap
> | > due to non-cacheable requirement. So lets note
> | > this explicitly instead of playing with numbers.
> | > 
> | > CC: Yinghai Lu <yinghai@...nel.org>
> | > CC: "Maciej W. Rozycki" <macro@...ux-mips.org>
> | > Signed-off-by: Cyrill Gorcunov <gorcunov@...nvz.org>
> | > ---
> | 
> | Acked-by: Maciej W. Rozycki <macro@...ux-mips.org>
> | 
> |  Is PAGE_SIZE still always 4kB for the x86 these days?  If so, then your 
> | change makes sense to me.
> 
> Yeah, as far as I know. I didn't find any sign if we going to change 
> PAGE_SHIFT.

Not in the next 10-20 years or so. (and any prediction beyond that is 
pointless i suspect)

	Ingo
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