linux-kernel - [RFC/PATCH 2/7] x86, mm: Move zone init from paging

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Message-Id: <1319811801-1725-2-git-send-email-penberg@kernel.org>
Date:	Fri, 28 Oct 2011 17:23:16 +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 2/7] x86, mm: Move zone init from paging_init() on 64-bit

This patch introduces a zone_sizes_init() helper function on 64-bit to make it
more similar to 32-bit init.

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 |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bbaaa00..3ddda59 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -612,7 +612,7 @@ void __init initmem_init(void)
 }
 #endif
 
-void __init paging_init(void)
+static void __init zone_sizes_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 
@@ -623,6 +623,11 @@ void __init paging_init(void)
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
 	max_zone_pfns[ZONE_NORMAL] = max_pfn;
 
+	free_area_init_nodes(max_zone_pfns);
+}
+
+void __init paging_init(void)
+{
 	sparse_memory_present_with_active_regions(MAX_NUMNODES);
 	sparse_init();
 
@@ -634,7 +639,7 @@ void __init paging_init(void)
 	 */
 	node_clear_state(0, N_NORMAL_MEMORY);
 
-	free_area_init_nodes(max_zone_pfns);
+	zone_sizes_init();
 }
 
 /*
-- 
1.7.6.4

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