From 7546934570f48283b7fe64a56d1c984fcb1e341e Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Thu, 14 Jan 2016 15:20:48 -0800 Subject: [PATCH] mm/compaction.c: __compact_pgdat() code cleanuup This patch uses is_via_compact_memory() to distinguish compaction from sysfs or sysctl. And, this patch also reduces indentation on compaction_defer_reset() by filtering these cases first before checking watermark. There is no functional change. Signed-off-by: Joonsoo Kim Acked-by: Yaowei Bai Acked-by: David Rientjes Acked-by: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/compaction.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/mm/compaction.c b/mm/compaction.c index ac6c6943d2ce..585de54dbe8c 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1658,14 +1658,15 @@ static void __compact_pgdat(pg_data_t *pgdat, struct compact_control *cc) !compaction_deferred(zone, cc->order)) compact_zone(zone, cc); - if (cc->order > 0) { - if (zone_watermark_ok(zone, cc->order, - low_wmark_pages(zone), 0, 0)) - compaction_defer_reset(zone, cc->order, false); - } - VM_BUG_ON(!list_empty(&cc->freepages)); VM_BUG_ON(!list_empty(&cc->migratepages)); + + if (is_via_compact_memory(cc->order)) + continue; + + if (zone_watermark_ok(zone, cc->order, + low_wmark_pages(zone), 0, 0)) + compaction_defer_reset(zone, cc->order, false); } } -- 2.30.2