From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v3 06/13] memcg: kmem controller infrastructure
Date: Thu, 4 Oct 2012 07:11:51 +0900
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To: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org, devel-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, Suleiman Souhlal <suleiman-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, Frederic Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Mel Gorman <mgorman-l3A5Bk7waGM@public.gmane.org>, David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, Christoph Lameter <cl-vYTEC60ixJUAvxtiuMwx3w@public.gmane.org>, Pekka Enberg <penberg-bbCR+/B0CizivPeTLB3BmA@public.gmane.org>, Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>

Hello, Glauber.

Sorry about late replies.  I'be been traveling for the Korean
thanksgiving holidays.

On Mon, Oct 01, 2012 at 12:28:28PM +0400, Glauber Costa wrote:
> > That synchronous ref draining is going away.  Maybe we can do that
> > before kmemcg?  Michal, do you have some timeframe on mind?
> 
> Since you said yourself in other points in this thread that you are fine
> with some page references outliving the cgroup in the case of slab, this
> is a situation that comes with the code, not a situation that was
> incidentally there, and we're making use of.

Hmmm?  Not sure what you're trying to say but I wanted to say that
this should be okay once the scheduled memcg pre_destroy change
happens and nudge Michal once more.

Thanks.

-- 
tejun