Messages in this thread Patch in this message |  | | From | Joonsoo Kim <> | Subject | [RFC 04/16] mm/vmstat: make node_page_state() handles all zones by itself | Date | Thu, 12 Feb 2015 16:32:08 +0900 |
| |
node_page_state() manually add statistics per each zone and return total value for all zones. Whenever we add a new zone, we need to consider this function and it's really troublesome. Make it handles all zones by itself.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> --- include/linux/vmstat.h | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 82e7db7..676488a 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -170,19 +170,13 @@ static inline unsigned long node_page_state(int node, enum zone_stat_item item) { struct zone *zones = NODE_DATA(node)->node_zones; + int i; + unsigned long count = 0; - return -#ifdef CONFIG_ZONE_DMA - zone_page_state(&zones[ZONE_DMA], item) + -#endif -#ifdef CONFIG_ZONE_DMA32 - zone_page_state(&zones[ZONE_DMA32], item) + -#endif -#ifdef CONFIG_HIGHMEM - zone_page_state(&zones[ZONE_HIGHMEM], item) + -#endif - zone_page_state(&zones[ZONE_NORMAL], item) + - zone_page_state(&zones[ZONE_MOVABLE], item); + for (i = 0; i < MAX_NR_ZONES; i++) + count += zone_page_state(zones + i, item); + + return count; } extern void zone_statistics(struct zone *, struct zone *, gfp_t gfp); -- 1.7.9.5
|  |