linux-kernel - Re: [PATCH 3/9] slab: move up code to get kmem_cache_node in free

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Message-ID: <alpine.DEB.2.02.1402141518400.13935@chino.kir.corp.google.com>
Date:	Fri, 14 Feb 2014 15:19:02 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
cc:	Pekka Enberg <penberg@...nel.org>,
	Christoph Lameter <cl@...ux.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Joonsoo Kim <js1304@...il.com>
Subject: Re: [PATCH 3/9] slab: move up code to get kmem_cache_node in
 free_block()

On Fri, 14 Feb 2014, Joonsoo Kim wrote:

> node isn't changed, so we don't need to retreive this structure
> everytime we move the object. Maybe compiler do this optimization,
> but making it explicitly is better.
> 

Would it be possible to make it const struct kmem_cache_node *n then?
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