linux-kernel - Re: [PATCH v2 04/29] slub: always get the cache from its page in kfree

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Message-ID: <alpine.DEB.2.00.1205111354540.386@router.home>
Date:	Fri, 11 May 2012 13:56:38 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Glauber Costa <glommer@...allels.com>
cc:	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	linux-mm@...ck.org, kamezawa.hiroyu@...fujitsu.com,
	Tejun Heo <tj@...nel.org>, Li Zefan <lizefan@...wei.com>,
	Greg Thelen <gthelen@...gle.com>,
	Suleiman Souhlal <suleiman@...gle.com>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>, devel@...nvz.org,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH v2 04/29] slub: always get the cache from its page in
 kfree

On Fri, 11 May 2012, Glauber Costa wrote:

> So we don't mix pages from multiple memcgs in the same cache - we believe that
> would be too confusing.

Well subsystem create caches and other things that are shared between
multiple processes. How can you track that?

> /proc/slabinfo reflects this information, by listing the memcg-specific slabs.

What about /sys/kernel/slab/*?


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