Re: [RFD][PATCH] memcg: Move Usage at Task Move

KAMEZAWA Hiroyuki
2008-06-12T06:51:41Z

On Thu, 12 Jun 2008 14:20:33 +0900 (JST)
yamamoto@valinux.co.jp (YAMAMOTO Takashi) wrote:

> > > i think that you can redirect new charges in TASK to DEST
> > > so that usage_of_task(TASK) will not grow.
> > >
> >
> > Hmm, to do that, we have to handle complicated cgroup's attach ops.
> >
> > at this moving, memcg is pointed by
> > - TASK->cgroup->memcg(CURR)
> > after move
> > - TASK->another_cgroup->memcg(DEST)
> >
> > This move happens before cgroup is replaced by another_cgroup.
>
> currently cgroup_attach_task calls ->attach callbacks after
> assigning tsk->cgroups. are you talking about something else?
>

Sorry, I move all in can_attach(). s/attach/can_attach

Thanks,
-Kame