mm/page_alloc.c: add __meminit to alloc_pages_exact_nid()

alloc_pages_exact_nid() is only called by __meminit alloc_page_cgroup()

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ef44ad7..fd4322c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2962,7 +2962,7 @@
  * Note this is not alloc_pages_exact_node() which allocates on a specific node,
  * but is not exact.
  */
-void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask)
+void * __meminit alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask)
 {
 	unsigned order = get_order(size);
 	struct page *p = alloc_pages_node(nid, gfp_mask, order);