linux-kernel - Re: [PATCH] mm/slub.c: freelist is ensured to be NULL when new

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Message-ID: <alpine.DEB.2.21.1901021343450.69024@chino.kir.corp.google.com>
Date:   Wed, 2 Jan 2019 13:43:57 -0800 (PST)
From:   David Rientjes <rientjes@...gle.com>
To:     Peng Wang <rocking@....edu.cn>
cc:     cl@...ux.com, penberg@...nel.org, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/slub.c: freelist is ensured to be NULL when new_slab()
 fails

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@....edu.cn>

Acked-by: David Rientjes <rientjes@...gle.com>