[Devel] [PATCH] mm/vmscan: inactive_list_is_low() to work on both file and anon lru lists
Konstantin Khorenko
khorenko at virtuozzo.com
Sat Mar 30 11:04:28 MSK 2019
From: Andrey Ryabinin <aryabinin at virtuozzo.com>
At the moment inactive_list_is_low() mistakenly checks FILE list
whatever (file or anon) list is asked to check.
Honor list type argument.
Fixes: 1f45c6c57160 ("mm/vmscan: active lru protection fixups.")
https://jira.sw.ru/browse/PSBM-92480
Signed-off-by: Andrey Ryabinin <aryabinin at virtuozzo.com>
Acked-by: Konstantin Khorenko <khorenko at virtuozzo.com>
---
mm/vmscan.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1f5f48dd3cf1..74d3e8c61cf7 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2008,7 +2008,9 @@ static void shrink_active_list(unsigned long nr_to_scan,
static int inactive_list_is_low(struct lruvec *lruvec, bool file,
struct mem_cgroup *memcg, bool actual_reclaim)
{
+ enum lru_list active_lru = file * LRU_FILE + LRU_ACTIVE;
struct zone *zone = lruvec_zone(lruvec);
+ enum lru_list inactive_lru = file * LRU_FILE;
unsigned long inactive_ratio;
unsigned long inactive;
unsigned long active;
@@ -2022,8 +2024,8 @@ static int inactive_list_is_low(struct lruvec *lruvec, bool file,
if (!file && !total_swap_pages)
return false;
- inactive = lruvec_lru_size(lruvec, LRU_INACTIVE_FILE);
- active = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE);
+ inactive = lruvec_lru_size(lruvec, inactive_lru);
+ active = lruvec_lru_size(lruvec, active_lru);
if (memcg)
refaults = memcg_ws_activates(memcg);
--
2.15.1
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