[patch 11/13] ia64: clean up sparsemem memory_present call

From: <akpm_at_linux-foundation.org>
Date: 2007-02-06 11:20:08
From: "Bob Picco" <bob.picco@hp.com>

Eliminate arch specific memory_present call ia64 NUMA by utilizing
sparse_memory_present_with_active_regions.

Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Bob Picco <bob.picco@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/ia64/mm/discontig.c |   36 +++---------------------------------
 1 file changed, 3 insertions(+), 33 deletions(-)

diff -puN arch/ia64/mm/discontig.c~ia64-clean-up-sparsemem-memory_present-calls arch/ia64/mm/discontig.c
--- a/arch/ia64/mm/discontig.c~ia64-clean-up-sparsemem-memory_present-calls
+++ a/arch/ia64/mm/discontig.c
@@ -412,37 +412,6 @@ static void __init memory_less_nodes(voi
 	return;
 }
 
-#ifdef CONFIG_SPARSEMEM
-/**
- * register_sparse_mem - notify SPARSEMEM that this memory range exists.
- * @start: physical start of range
- * @end: physical end of range
- * @arg: unused
- *
- * Simply calls SPARSEMEM to register memory section(s).
- */
-static int __init register_sparse_mem(unsigned long start, unsigned long end,
-	void *arg)
-{
-	int nid;
-
-	start = __pa(start) >> PAGE_SHIFT;
-	end = __pa(end) >> PAGE_SHIFT;
-	nid = early_pfn_to_nid(start);
-	memory_present(nid, start, end);
-
-	return 0;
-}
-
-static void __init arch_sparse_init(void)
-{
-	efi_memmap_walk(register_sparse_mem, NULL);
-	sparse_init();
-}
-#else
-#define arch_sparse_init() do {} while (0)
-#endif
-
 /**
  * find_memory - walk the EFI memory map and setup the bootmem allocator
  *
@@ -688,10 +657,11 @@ void __init paging_init(void)
 
 	max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
 
-	arch_sparse_init();
-
 	efi_memmap_walk(filter_rsvd_memory, count_node_pages);
 
+	sparse_memory_present_with_active_regions(MAX_NUMNODES);
+	sparse_init();
+
 #ifdef CONFIG_VIRTUAL_MEM_MAP
 	vmalloc_end -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
 		sizeof(struct page));
_
-
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Received on Tue Feb 06 11:23:08 2007

This archive was generated by hypermail 2.1.8 : 2007-02-06 11:33:34 EST