On 3/30/19 11:04 AM, Konstantin Khorenko wrote:
> From: Andrey Ryabinin <aryabi...@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
>
Fixes: bd24af0d6d08052165b43883213f564833de06e5 ("ms/mm: workingset: per-cgroup
cache thrash detection")
> Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
> Acked-by: Konstantin Khorenko <khore...@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);
>
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