[RFC/PATCH 5/7] x86, mm: Use max_low_pfn for ZONE_NORMAL on 64-bit

[Pekka Enberg]

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

Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxx>
---
 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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