[PATCH] Use ZVC for free_pages

This is again simplifies some of the VM counter calculations through the use
of the ZVC consolidated counters.

[michal.k.k.piotrowski@gmail.com: build fix]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/mm/highmem.c b/mm/highmem.c
index 0206e7e5018c..51e1c1995fec 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -47,7 +47,8 @@ unsigned int nr_free_highpages (void)
         unsigned int pages = 0;
 
         for_each_online_pgdat(pgdat)
-                pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages;
+                pages += zone_page_state(&pgdat->node_zones[ZONE_HIGHMEM],
+                        NR_FREE_PAGES);
 
         return pages;
 }