linux-kernel - [PATCH x86 for review III] [4/29] x86_64: clean up sparsemem memory

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Message-Id: <20070212165123.DDBA613F81@wotan.suse.de>
Date:	Mon, 12 Feb 2007 17:51:23 +0100 (CET)
From:	Andi Kleen <ak@...e.de>
To:	"Bob Picco" <bob.picco@...com>, Andi Kleen <ak@....de>,
	patches@...-64.org, linux-kernel@...r.kernel.org
Subject: [PATCH x86 for review III] [4/29] x86_64: clean up sparsemem memory_present call


From: "Bob Picco" <bob.picco@...com>

Eliminate arch specific memory_present call x86_64 NUMA by utilizing
sparse_memory_present_with_active_regions.

Acked-by: Mel Gorman <mel@....ul.ie>
Signed-off-by: Bob Picco <bob.picco@...com>
Signed-off-by: Andi Kleen <ak@...e.de>
Cc: Andi Kleen <ak@....de>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 arch/x86_64/mm/numa.c |   17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

Index: linux/arch/x86_64/mm/numa.c
===================================================================
--- linux.orig/arch/x86_64/mm/numa.c
+++ linux/arch/x86_64/mm/numa.c
@@ -460,20 +460,6 @@ unsigned long __init numa_free_all_bootm
 	return pages;
 } 
 
-#ifdef CONFIG_SPARSEMEM
-static void __init arch_sparse_init(void)
-{
-	int i;
-
-	for_each_online_node(i)
-		memory_present(i, node_start_pfn(i), node_end_pfn(i));
-
-	sparse_init();
-}
-#else
-#define arch_sparse_init() do {} while (0)
-#endif
-
 void __init paging_init(void)
 { 
 	int i;
@@ -483,7 +469,8 @@ void __init paging_init(void)
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
 	max_zone_pfns[ZONE_NORMAL] = end_pfn;
 
-	arch_sparse_init();
+	sparse_memory_present_with_active_regions(MAX_NUMNODES);
+	sparse_init();
 
 	for_each_online_node(i) {
 		setup_node_zones(i); 
-
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