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Commit 9d99217a authored by Yasunori Goto's avatar Yasunori Goto Committed by Linus Torvalds
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memory hotplug: align memmap to page size 



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: default avatarYasunori Goto <y-goto@jp.fujitsu.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 04753278

mm/sparse.c

+2 −2
Original line number Diff line number Diff line
@@ -273,8 +273,8 @@ struct page __init *sparse_mem_map_populate(unsigned long pnum, int nid) 
	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 */