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SubjectRe: [PATCH 0/4] Container Freezer: Reuse Suspend Freezer
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On Tue, 2008-07-08 at 13:07 -0700, Paul Menage wrote:
> On Tue, Jul 8, 2008 at 1:06 PM, Paul Menage <menage@google.com> wrote:
> > On Tue, Jul 8, 2008 at 12:39 PM, Matt Helsley <matthltc@us.ibm.com> wrote:
> >>
> >> One is to try and disallow users from moving frozen tasks. That doesn't
> >> seem like a good approach since it would require a new cgroups interface
> >> "can_detach()".
> >
> > Detaching from the old cgroup happens at the same time as attaching to
> > the new cgroup, so can_attach() would work here.

Update: I've made a patch implementing this. However it might be better
to just modify attach() to thaw the moving task rather than disallow
moving the frozen task. Serge, Cedric, Kame-san, do you have any
thoughts on which is more useful and/or intuitive?

> And the whole can_attach()/attach() protocol needs reworking anyway,
> see my email (hopefully) later today.
>
> Paul

Interesting. I look forward to seeing this.

Cheers,
-Matt



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