linux-kernel - Re: [PATCH 1/5] HWPOISON: define VM_FAULT_HWPOISON to 0 when feature is disabled

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Date:	Fri, 12 Jun 2009 21:15:41 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Nick Piggin <npiggin@...e.de>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	"riel@...hat.com" <riel@...hat.com>,
	"chris.mason@...cle.com" <chris.mason@...cle.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [PATCH 1/5] HWPOISON: define VM_FAULT_HWPOISON to 0 when
	feature is disabled

On Fri, Jun 12, 2009 at 06:00:50PM +0800, Andi Kleen wrote:
> On Thu, Jun 11, 2009 at 10:22:40PM +0800, Wu Fengguang wrote:
> > So as to eliminate one #ifdef in the c source.
> > 
> > Proposed by Nick Piggin.
> 
> Some older gccs didn't eliminate string constants for this,
> please check you don't get the string in the object file with 
> gcc 3.2 with the CONFIG disabled now.

Well I don't have gcc 3.2 at hand and it's missing from apt source.. 

Thanks,
Fengguang

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