Messages in this thread Patch in this message | | | From | js1304@gmail ... | Subject | [PATCH 4/4] mm/vmstat: make node_page_state() handles all zones by itself | Date | Fri, 1 Apr 2016 11:10:10 +0900 |
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From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
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> --- mm/vmstat.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/mm/vmstat.c b/mm/vmstat.c index 0a726e3..a7de9ad 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -600,19 +600,13 @@ void zone_statistics(struct zone *preferred_zone, struct zone *z, gfp_t flags) 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; } #endif -- 1.9.1
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