linux-kernel - Re: [PATCH] mm/memcg: no one use charge

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Date:   Tue, 8 Sep 2020 10:27:19 +0200
From:   Michal Hocko <mhocko@...e.com>
To:     Alex Shi <alex.shi@...ux.alibaba.com>
Cc:     Johannes Weiner <hannes@...xchg.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/memcg: no one use charge_type

On Tue 08-09-20 16:12:07, Alex Shi wrote:
> After commit 0a31bc97c80c3f mm: memcontrol: rewrite uncharge API, no one
> using MEM_CGROUP_CHARGE_TYPE_xxx, let's remove them.
> 
> Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com>
> Cc: Johannes Weiner <hannes@...xchg.org> 
> Cc: Michal Hocko <mhocko@...nel.org> 
> Cc: Vladimir Davydov <vdavydov.dev@...il.com> 
> Cc: Andrew Morton <akpm@...ux-foundation.org> 
> Cc: cgroups@...r.kernel.org 
> Cc: linux-mm@...ck.org 
> Cc: linux-kernel@...r.kernel.org 

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

Thanks!

> ---
>  mm/memcontrol.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index 5d52b8a88bea..d925905920bf 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -199,14 +199,6 @@ struct mem_cgroup_event {
>  #define	MEM_CGROUP_MAX_RECLAIM_LOOPS		100
>  #define	MEM_CGROUP_MAX_SOFT_LIMIT_RECLAIM_LOOPS	2
>  
> -enum charge_type {
> -	MEM_CGROUP_CHARGE_TYPE_CACHE = 0,
> -	MEM_CGROUP_CHARGE_TYPE_ANON,
> -	MEM_CGROUP_CHARGE_TYPE_SWAPOUT,	/* for accounting swapcache */
> -	MEM_CGROUP_CHARGE_TYPE_DROP,	/* a page was unused swap cache */
> -	NR_CHARGE_TYPE,
> -};
> -
>  /* for encoding cft->private value on file */
>  enum res_type {
>  	_MEM,
> -- 
> 1.8.3.1

-- 
Michal Hocko
SUSE Labs