[Patch](memory hotplug) Tiny update for hot-add with sparsemem-vmemmap

[Yasunori Goto <y-goto@jp.fujitsu.com>]

This is tiny update for Mel-san's comment about 
memory hotplug with sparse-vmemmap.

  - Add __meminit to sparse_mem_map_populate()
  - Add a comment.

This is for 2.6.23-rc3-mm1.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>

---
 mm/sparse-vmemmap.c |    2 +-
 mm/sparse.c         |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

Index: current/mm/sparse-vmemmap.c
===================================================================
--- current.orig/mm/sparse-vmemmap.c	2007-08-23 16:19:10.000000000 +0900
+++ current/mm/sparse-vmemmap.c	2007-08-30 19:25:16.000000000 +0900
@@ -137,7 +137,7 @@ int __meminit vmemmap_populate_basepages
 	return 0;
 }
 
-struct page *sparse_mem_map_populate(unsigned long pnum, int nid)
+struct page * __meminit sparse_mem_map_populate(unsigned long pnum, int nid)
 {
 	struct page *map = pfn_to_page(pnum * PAGES_PER_SECTION);
 	int error = vmemmap_populate(map, PAGES_PER_SECTION, nid);
Index: current/mm/sparse.c
===================================================================
--- current.orig/mm/sparse.c	2007-08-23 16:19:10.000000000 +0900
+++ current/mm/sparse.c	2007-08-30 19:31:50.000000000 +0900
@@ -326,6 +326,7 @@ void __init sparse_init(void)
 static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
 						 unsigned long nr_pages)
 {
+	/* This will make the necessary allocations eventually. */
 	return sparse_mem_map_populate(pnum, nid);
 }
 static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)

-- 
Yasunori Goto 


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