linux-kernel - Re: [PATCH] mm/vmscan.c: use update_lru_size() in update_lru

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Message-ID: <20200401153324.GP22681@dhcp22.suse.cz>
Date:   Wed, 1 Apr 2020 17:33:24 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Wei Yang <richard.weiyang@...il.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/vmscan.c: use update_lru_size() in update_lru_sizes()

On Tue 31-03-20 22:15:50, Wei Yang wrote:
> We already defined the helper update_lru_size().
> 
> Let's use this to reduce code duplication.
> 
> Signed-off-by: Wei Yang <richard.weiyang@...il.com>

Acked-by: Michal Hocko <mhocko@...e.com>

> ---
>  mm/vmscan.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index f92858e5c2e3..a4fdf3dc8887 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -1603,10 +1603,7 @@ static __always_inline void update_lru_sizes(struct lruvec *lruvec,
>  		if (!nr_zone_taken[zid])
>  			continue;
>  
> -		__update_lru_size(lruvec, lru, zid, -nr_zone_taken[zid]);
> -#ifdef CONFIG_MEMCG
> -		mem_cgroup_update_lru_size(lruvec, lru, zid, -nr_zone_taken[zid]);
> -#endif
> +		update_lru_size(lruvec, lru, zid, -nr_zone_taken[zid]);
>  	}
>  
>  }
> -- 
> 2.23.0
> 

-- 
Michal Hocko
SUSE Labs