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: Roman Gushchin <guro@xxxxxx>
Date: Thu, 29 Jul 2021 20:07:27 -0700
Cc: <hannes@xxxxxxxxxxx>, <mhocko@xxxxxxxxxx>, <vdavydov.dev@xxxxxxxxx>, <akpm@xxxxxxxxxxxxxxxxxxxx>, <shakeelb@xxxxxxxxxx>, <willy@xxxxxxxxxxxxx>, <alexs@xxxxxxxxxx>, <richard.weiyang@xxxxxxxxx>, <songmuchun@xxxxxxxxxxxxx>, <linux-mm@xxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <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 08:57:53PM +0800, Miaohe Lin 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>

Acked-by: Roman Gushchin <guro@xxxxxx>

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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