Re: [PATCH -mmotm 0/5] memcg: recharge at task move (19/Nov)

[Balbir Singh <balbir@linux.vnet.ibm.com>]

* nishimura@mxp.nes.nec.co.jp <nishimura@mxp.nes.nec.co.jp> [2009-11-19 13:27:34]:

> Hi.
> 
> These are current patches of my recharge-at-task-move feature.
> They(precisely, only [5/5]) are dependent on KAMEZAWA-san's per-process swap usage patch,
> which is not merged yet, so are not for inclusion yet. I post them just for review and
> to share my current code.
> 
> In current memcg, charges associated with a task aren't moved to the new cgroup
> at task move. Some users feel this behavior to be strange.
> These patches are for this feature, that is, for recharging to
> the new cgroup and, of course, uncharging from old cgroup at task move.
> 
> Current version supports only recharge of non-shared(mapcount == 1) anonymous pages
> and swaps of those pages. I think it's enough as a first step.
> 
>   [1/5] cgroup: introduce cancel_attach()
>   [2/5] memcg: add interface to recharge at task move
>   [3/5] memcg: recharge charges of anonymous page
>   [4/5] memcg: avoid oom during recharge at task move
>   [5/5] memcg: recharge charges of anonymous swap
>

Thanks for the posting, I'll test and review the patches (hopefully
tomorrow).
 
-- 
	Balbir

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