Re: [PATCH] mm/slub.c: freelist is ensured to be NULL when new_slab() fails

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To: Peng Wang <rocking@xxxxxxxxxx>
Subject: Re: [PATCH] mm/slub.c: freelist is ensured to be NULL when new_slab() fails
From: David Rientjes <rientjes@xxxxxxxxxx>
Date: Wed, 2 Jan 2019 13:43:57 -0800 (PST)
Cc: cl@xxxxxxxxx, penberg@xxxxxxxxxx, iamjoonsoo.kim@xxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20181229062512.30469-1-rocking@whu.edu.cn>
References: <20181229062512.30469-1-rocking@whu.edu.cn>
User-agent: Alpine 2.21 (DEB 202 2017-01-01)

On Sat, 29 Dec 2018, Peng Wang wrote:

> new_slab_objects() will return immediately if freelist is not NULL.
> 
>          if (freelist)
>                  return freelist;
> 
> One more assignment operation could be avoided.
> 
> Signed-off-by: Peng Wang <rocking@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

References:
- [PATCH] mm/slub.c: freelist is ensured to be NULL when new_slab() fails
  - From: Peng Wang

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