let __dec_zone_page_state use __dec_zone_state

["Uwe Kleine-König" <Uwe.Kleine-Koenig@digi.com>]

This removes code duplication and makes __dec_zone_page_state look like
__inc_zone_page_state.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Cc: Christoph Lameter <clameter@sgi.com>
---
> IMHO the last hunk is worth to make it into mainstream.
So here comes the patch ...

Best regards
Uwe

 include/linux/vmstat.h |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)


diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 75370ec..9f1b4b4 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -246,8 +246,7 @@ static inline void __dec_zone_state(struct zone *zone, enum zone_stat_item item)
 static inline void __dec_zone_page_state(struct page *page,
 			enum zone_stat_item item)
 {
-	atomic_long_dec(&page_zone(page)->vm_stat[item]);
-	atomic_long_dec(&vm_stat[item]);
+	__dec_zone_state(page_zone(page), item);
 }
 
 /*
-- 
1.5.4.3

-- 
Uwe Kleine-König, Software Engineer
Digi International GmbH Branch Breisach, Küferstrasse 8, 79206 Breisach, Germany
Tax: 315/5781/0242 / VAT: DE153662976 / Reg. Amtsgericht Dortmund HRB 13962