linux-kernel - Re: [PATCH v3 13/16] slab: slab-specific propagation changes.

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Message-ID: <5059772A.8020402@parallels.com>
Date:	Wed, 19 Sep 2012 11:41:30 +0400
From:	Glauber Costa <glommer@...allels.com>
To:	Christoph Lameter <cl@...ux.com>
CC:	<linux-kernel@...r.kernel.org>, <cgroups@...r.kernel.org>,
	<kamezawa.hiroyu@...fujitsu.com>, <devel@...nvz.org>,
	Tejun Heo <tj@...nel.org>, <linux-mm@...ck.org>,
	Suleiman Souhlal <suleiman@...gle.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mel Gorman <mgorman@...e.de>,
	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH v3 13/16] slab: slab-specific propagation changes.

On 09/18/2012 09:00 PM, Christoph Lameter wrote:
> On Tue, 18 Sep 2012, Glauber Costa wrote:
> 
>> When a parent cache does tune_cpucache, we need to propagate that to the
>> children as well. For that, we unfortunately need to tap into the slab core.
> 
> One of the todo list items for the common stuff is to have actually a
> common kmem_cache structure. If we add a common callback then we could put
> that also into the core.
> 

At this point, I'd like to keep it this way if possible. I agree that it
would be a lot better living in a common location, and I commit to
helping you to move in that direction.

But I see no reason to have this commonization to happen first, as a
pre-requisite for this.

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