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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2016-05-19 17:12:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-19 19:12:14 -0700 |
| commit | e87d59f7a2002aa2d4582d4ea16da91dd3c72752 (patch) | |
| tree | c4c3b7a79adcb151b05f4891b1f590dec177fc01 | |
| parent | 33499bfe507c844f2c6f55ae8cec17705d0eda95 (diff) | |
| download | linux-e87d59f7a2002aa2d4582d4ea16da91dd3c72752.tar.gz linux-e87d59f7a2002aa2d4582d4ea16da91dd3c72752.tar.bz2 linux-e87d59f7a2002aa2d4582d4ea16da91dd3c72752.zip | |
mm/vmstat: make node_page_state() handles all zones by itself
node_page_state() manually adds statistics per each zone and returns
total value for all zones. Whenever we add a new zone, we need to
consider this function and it's really troublesome. Make it handle all
zones by itself.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmstat.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index 0a726e398cfd..a7de9adacbd9 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 |