linux-kernel - Re: [PATCH 2/3] x86: remove bios data range from e820

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Date:	Fri, 22 Jan 2010 12:06:08 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Yinghai Lu <yinghai@...nel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Zheng, Shaohui" <shaohui.zheng@...el.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 2/3] x86: remove bios data range from e820

On Thu, Jan 21, 2010 at 07:21:04PM -0800, Wu, Fengguang wrote:
> From: Yinghai Lu <yinghai@...nel.org>
> 
> To prepare move page_is_ram() as generic one.

Yinghai,

The following two chunks cannot apply because the lines they remove
don't exist in linux-next. Because this patchset is targeted for
2.6.34, I just remove the chunks.

===================================================================
--- linux-2.6.orig/arch/x86/kernel/head32.c
+++ linux-2.6/arch/x86/kernel/head32.c
@@ -29,8 +29,6 @@ static void __init i386_default_early_se
 
 void __init i386_start_kernel(void)
 {
-       reserve_early_overlap_ok(0, PAGE_SIZE, "BIOS data page");
-
 #ifdef CONFIG_X86_TRAMPOLINE
        /*
         * But first pinch a few for the stack/trampoline stuff
Index: linux-2.6/arch/x86/kernel/head64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/head64.c
+++ linux-2.6/arch/x86/kernel/head64.c
@@ -98,8 +98,6 @@ void __init x86_64_start_reservations(ch
 {
        copy_bootdata(__va(real_mode_data));
 
-       reserve_early_overlap_ok(0, PAGE_SIZE, "BIOS data page");
-
        reserve_early(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS");
 
 #ifdef CONFIG_BLK_DEV_INITRD

Thanks,
Fengguang
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