Messages in this thread Patch in this message |  | | Date | Mon, 07 Apr 2008 21:46:19 +0900 | From | Yasunori Goto <> | Subject | [Patch 002/005](memory hotplug) align memmap to page size |
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To free memmap easier, this patch aligns it to page size. Bootmem allocater may mix some objects in one pages. It's not good for freeing memmap of memory hot-remove.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
--- mm/sparse.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Index: current/mm/sparse.c =================================================================== --- current.orig/mm/sparse.c 2008-04-07 19:18:50.000000000 +0900 +++ current/mm/sparse.c 2008-04-07 20:08:13.000000000 +0900 @@ -265,8 +265,8 @@ if (map) return map; - map = alloc_bootmem_node(NODE_DATA(nid), - sizeof(struct page) * PAGES_PER_SECTION); + map = alloc_bootmem_pages_node(NODE_DATA(nid), + PAGE_ALIGN(sizeof(struct page) * PAGES_PER_SECTION)); return map; } #endif /* !CONFIG_SPARSEMEM_VMEMMAP */ -- Yasunori Goto
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