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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2019-03-05 15:49:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:21 -0800 |
| commit | 5f438eee8f2e972e910b558a1a243def508b6a35 (patch) | |
| tree | 83d09a249ca37ad3dc550c5f72cf796b670f060d /mm | |
| parent | f4b7e272b5c0425915e2115068e0a5a20a3a628e (diff) | |
| download | lwn-5f438eee8f2e972e910b558a1a243def508b6a35.tar.gz lwn-5f438eee8f2e972e910b558a1a243def508b6a35.zip | |
mm/compaction: pass pgdat to too_many_isolated() instead of zone
too_many_isolated() in mm/compaction.c looks only at node state, so it
makes more sense to change argument to pgdat instead of zone.
Link: http://lkml.kernel.org/r/20190228083329.31892-3-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Rik van Riel <riel@surriel.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/compaction.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index e054276cf397..f171a83707ce 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -738,16 +738,16 @@ isolate_freepages_range(struct compact_control *cc, } /* Similar to reclaim, but different enough that they don't share logic */ -static bool too_many_isolated(struct zone *zone) +static bool too_many_isolated(pg_data_t *pgdat) { unsigned long active, inactive, isolated; - inactive = node_page_state(zone->zone_pgdat, NR_INACTIVE_FILE) + - node_page_state(zone->zone_pgdat, NR_INACTIVE_ANON); - active = node_page_state(zone->zone_pgdat, NR_ACTIVE_FILE) + - node_page_state(zone->zone_pgdat, NR_ACTIVE_ANON); - isolated = node_page_state(zone->zone_pgdat, NR_ISOLATED_FILE) + - node_page_state(zone->zone_pgdat, NR_ISOLATED_ANON); + inactive = node_page_state(pgdat, NR_INACTIVE_FILE) + + node_page_state(pgdat, NR_INACTIVE_ANON); + active = node_page_state(pgdat, NR_ACTIVE_FILE) + + node_page_state(pgdat, NR_ACTIVE_ANON); + isolated = node_page_state(pgdat, NR_ISOLATED_FILE) + + node_page_state(pgdat, NR_ISOLATED_ANON); return isolated > (inactive + active) / 2; } @@ -774,8 +774,7 @@ static unsigned long isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, unsigned long end_pfn, isolate_mode_t isolate_mode) { - struct zone *zone = cc->zone; - pg_data_t *pgdat = zone->zone_pgdat; + pg_data_t *pgdat = cc->zone->zone_pgdat; unsigned long nr_scanned = 0, nr_isolated = 0; struct lruvec *lruvec; unsigned long flags = 0; @@ -791,7 +790,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn, * list by either parallel reclaimers or compaction. If there are, * delay for some time until fewer pages are isolated */ - while (unlikely(too_many_isolated(zone))) { + while (unlikely(too_many_isolated(pgdat))) { /* async migration should just abort */ if (cc->mode == MIGRATE_ASYNC) return 0; |