netdev - Re: [PATCH 5/7] slub: support for bulk free with SLUB freelists

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Message-ID: <alpine.DEB.2.20.1509281113400.30876@east.gentwo.org>
Date:	Mon, 28 Sep 2015 11:28:15 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Jesper Dangaard Brouer <brouer@...hat.com>
cc:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	netdev@...r.kernel.org,
	Alexander Duyck <alexander.duyck@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH 5/7] slub: support for bulk free with SLUB freelists

On Mon, 28 Sep 2015, Jesper Dangaard Brouer wrote:

> > Do you really need separate parameters for freelist_head? If you just want
> > to deal with one object pass it as freelist_head and set cnt = 1?
>
> Yes, I need it.  We need to know both the head and tail of the list to
> splice it.

Ok so this is to avoid having to scan the list to its end? x is the end
of the list and freelist_head the beginning. That is weird.
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