Re: [RFC] rework mem_cgroup iterator

[Tejun Heo]

Hello, Michal.

On Wed, Nov 14, 2012 at 09:36:53AM +0100, Michal Hocko wrote:
> > So memcg won't use css id at all, right?
> 
> Unfortunately we still use it for the swap accounting but that one could
> be replaced by something else, probably. Have to think about it.

I have a patch to add cgrp->id pending.  From what I can see, memcg
should be able to use that for swap accounting.

> > Then we can remove the whole css_id stuff, and that's quite a bunch of
> > code.

Yeap, that's the plan.

> Is memcg the only user of css_id? Quick grep shows that yes but I
> haven't checked all the callers of the exported functions. I would be
> happy if more code goes away.

Yeap, memcg is the only user and I really wanna remove it once memcg
moves onto saner stuff.

Thanks.

-- 
tejun
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