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authorMel Gorman <mgorman@techsingularity.net>2016-07-29 01:46:02 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-29 02:07:41 +0300
commita9dd0a83104c01269ea36a9b4ec42b51edf85427 (patch)
tree2d3329f49b0c91376945e96838bab1307e33b57d /mm/page_alloc.c
parent86c79f6b5426ce118d32c73fa9e328f0a86ab590 (diff)
downloadlinux-a9dd0a83104c01269ea36a9b4ec42b51edf85427.tar.xz
mm, vmscan: make shrink_node decisions more node-centric
Earlier patches focused on having direct reclaim and kswapd use data that is node-centric for reclaiming but shrink_node() itself still uses too much zone information. This patch removes unnecessary zone-based information with the most important decision being whether to continue reclaim or not. Some memcg APIs are adjusted as a result even though memcg itself still uses some zone information. [mgorman@techsingularity.net: optimization] Link: http://lkml.kernel.org/r/1468588165-12461-2-git-send-email-mgorman@techsingularity.net Link: http://lkml.kernel.org/r/1467970510-21195-14-git-send-email-mgorman@techsingularity.net Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@surriel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 81586410c59c..749b3c358ead 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5911,6 +5911,7 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat)
#endif
pgdat_page_ext_init(pgdat);
spin_lock_init(&pgdat->lru_lock);
+ lruvec_init(node_lruvec(pgdat));
for (j = 0; j < MAX_NR_ZONES; j++) {
struct zone *zone = pgdat->node_zones + j;
@@ -5973,7 +5974,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat)
/* For bootup, initialized properly in watermark setup */
mod_zone_page_state(zone, NR_ALLOC_BATCH, zone->managed_pages);
- lruvec_init(zone_lruvec(zone));
if (!size)
continue;