linux-kernel - [RFC/PATCH 6/7] x86, mm: Prepare zone_sizes

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Message-Id: <1319811801-1725-6-git-send-email-penberg@kernel.org>
Date:	Fri, 28 Oct 2011 17:23:20 +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 6/7] x86, mm: Prepare zone_sizes_init() for unification

Make 32-bit and 64-bit zone_sizes_init() identical in preparation for
unification.

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_32.c |    4 ++++
 arch/x86/mm/init_64.c |    3 +++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 6101894..12274fb 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -677,10 +677,14 @@ void __init initmem_init(void)
 static void __init zone_sizes_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
+
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 #ifdef CONFIG_ZONE_DMA
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
 #endif
+#ifdef CONFIG_ZONE_DMA32
+        max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 #ifdef CONFIG_HIGHMEM
 	max_zone_pfns[ZONE_HIGHMEM] = max_pfn;
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index f6b1f08..06c4360 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -624,6 +624,9 @@ static void __init zone_sizes_init(void)
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
+#ifdef CONFIG_HIGHMEM
+	max_zone_pfns[ZONE_HIGHMEM] = max_pfn;
+#endif
 
 	free_area_init_nodes(max_zone_pfns);
 }
-- 
1.7.6.4

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