Re: [PATCH 3/5] mm, memcg: save some atomic ops when flush is already true

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To: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: Re: [PATCH 3/5] mm, memcg: save some atomic ops when flush is already true
From: Shakeel Butt <shakeelb@xxxxxxxxxx>
Date: Thu, 29 Jul 2021 07:40:34 -0700
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxxxx>, Vladimir Davydov <vdavydov.dev@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Roman Gushchin <guro@xxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, alexs@xxxxxxxxxx, Wei Yang <richard.weiyang@xxxxxxxxx>, Muchun Song <songmuchun@xxxxxxxxxxxxx>, Linux MM <linux-mm@xxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Cgroups <cgroups@xxxxxxxxxxxxxxx>
In-reply-to: <20210729125755.16871-4-linmiaohe@huawei.com>
References: <20210729125755.16871-1-linmiaohe@huawei.com> <20210729125755.16871-4-linmiaohe@huawei.com>

On Thu, Jul 29, 2021 at 5:58 AM Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote:
>
> Add 'else' to save some atomic ops in obj_stock_flush_required() when
> flush is already true. No functional change intended here.
>
> Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>

Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx>

References:
- [PATCH 0/5] Cleanups and fixup for memcontrol
  - From: Miaohe Lin
- [PATCH 3/5] mm, memcg: save some atomic ops when flush is already true
  - From: Miaohe Lin

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