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authorAndrey Ryabinin <aryabinin@virtuozzo.com>2019-03-05 15:49:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 21:07:21 -0800
commit5f438eee8f2e972e910b558a1a243def508b6a35 (patch)
tree83d09a249ca37ad3dc550c5f72cf796b670f060d /mm/compaction.c
parentf4b7e272b5c0425915e2115068e0a5a20a3a628e (diff)
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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/compaction.c')
-rw-r--r--mm/compaction.c19
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;