linux-kernel - Re: [PATCH v5 04/18] slab: don't preemptively remove element from list in cache destroy

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Message-ID: <0000013a7a84cb28-334eab12-33c4-4a92-bd9c-e5ad938f83d0-000000@email.amazonses.com>
Date:	Fri, 19 Oct 2012 19:34:14 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Glauber Costa <glommer@...allels.com>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org, Mel Gorman <mgorman@...e.de>,
	Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	kamezawa.hiroyu@...fujitsu.com,
	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...nel.org>, devel@...nvz.org,
	Pekka Enberg <penberg@...helsinki.fi>,
	Suleiman Souhlal <suleiman@...gle.com>
Subject: Re: [PATCH v5 04/18] slab: don't preemptively remove element from
 list in cache destroy

On Fri, 19 Oct 2012, Glauber Costa wrote:

> I, however, see no reason why we need to do so, since we are now locked
> during the whole deletion (which wasn't necessarily true before).  I
> propose a simplification in which we delete it only when there is no
> more going back, so we don't need to add it again.

Ok lets hope that holding the lock does not cause issues.

Acked-by: Christoph Lameter <cl@...ux.com>
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