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

YAMAMOTO Takashi
2008-06-12T05:20:33Z

> > 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?

YAMAMOTO Takashi