From 33dd4e0ec91138c3d80e790c08a3db47426c81f2 Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@citrix.com>
Date: Mon, 25 Jul 2011 17:11:51 -0700
Subject: mm: make some struct page's const

These uses are read-only and in a subsequent patch I have a const struct
page in my hand...

[akpm@linux-foundation.org: fix warnings in lowmem_page_address()]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/sparse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mm/sparse.c')

diff --git a/mm/sparse.c b/mm/sparse.c
index aa64b12831a2..858e1dff9b2a 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -40,7 +40,7 @@ static u8 section_to_node_table[NR_MEM_SECTIONS] __cacheline_aligned;
 static u16 section_to_node_table[NR_MEM_SECTIONS] __cacheline_aligned;
 #endif
 
-int page_to_nid(struct page *page)
+int page_to_nid(const struct page *page)
 {
 	return section_to_node_table[page_to_section(page)];
 }
-- 
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