linux-kernel - Re: [PATCH] [1/16] HWPOISON: Add page flag for poisoned pages

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Message-ID: <4A2028BD.8050408@redhat.com>
Date:	Fri, 29 May 2009 14:26:05 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	fengguang.wu@...el.com
Subject: Re: [PATCH] [1/16] HWPOISON: Add page flag for poisoned pages

Andi Kleen wrote:
> On Fri, May 29, 2009 at 12:34:32PM -0400, Rik van Riel wrote:
>>> They should just check for poisoned pages. 
>> #define PagePoisoned(page) (PageReserved(page) && PageWriteback(page))
> 
> I don't know what the point of that would be. An exercise in code
> obfuscation?

Saving a page flag.

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