linux-kernel - [RFC/PATCH 5/7] x86, mm: Use max_low_pfn for ZONE

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Date:	Fri, 28 Oct 2011 17:23:19 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	x86@...nel.org
Cc:	linux-kernel@...r.kernel.org, Pekka Enberg <penberg@...nel.org>,
	Tejun Heo <tj@...nel.org>, Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	David Rientjes <rientjes@...gle.com>
Subject: [RFC/PATCH 5/7] x86, mm: Use max_low_pfn for ZONE_NORMAL on 64-bit

64-bit has no highmem so max_low_pfn is always the same as 'max_pfn'.

Cc: Tejun Heo <tj@...nel.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: H. Peter Anvin <hpa@...ux.intel.com>
Cc: David Rientjes <rientjes@...gle.com>
Signed-off-by: Pekka Enberg <penberg@...nel.org>
---
 arch/x86/mm/init_64.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a9214e6..f6b1f08 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -623,7 +623,7 @@ static void __init zone_sizes_init(void)
 #ifdef CONFIG_ZONE_DMA32
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
 #endif
-	max_zone_pfns[ZONE_NORMAL] = max_pfn;
+	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
 	free_area_init_nodes(max_zone_pfns);
 }
-- 
1.7.6.4

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