linux-kernel - Re: [RFC/PATCH 3/7] x86, mm: Use max_pfn instead of highend

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Message-ID: <alpine.DEB.2.00.1110311552280.22237@chino.kir.corp.google.com>
Date:	Mon, 31 Oct 2011 15:54:00 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Pekka Enberg <penberg@...nel.org>
cc:	x86@...nel.org, linux-kernel@...r.kernel.org,
	Tejun Heo <tj@...nel.org>, Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>
Subject: Re: [RFC/PATCH 3/7] x86, mm: Use max_pfn instead of highend_pfn

On Fri, 28 Oct 2011, Pekka Enberg wrote:

> diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
> index 434c97d..6101894 100644
> --- a/arch/x86/mm/init_32.c
> +++ b/arch/x86/mm/init_32.c
> @@ -54,7 +54,7 @@
>  #include <asm/page_types.h>
>  #include <asm/init.h>
>  
> -unsigned long highstart_pfn, highend_pfn;
> +unsigned long highstart_pfn;
>  
>  static noinline int do_test_wp_bit(void);
>  

This shouldn't build with a CONFIG_NUMA i386 config, highend_pfn is used 
in arch/x86/mm/numa_32.c.
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