Re: [RFC][PATCH 0/3] fork: Add the ability to create tasks withgiven pids

From: Tejun Heo
Date: Wed Nov 23 2011 - 11:24:25 EST


Hello,

On Wed, Nov 23, 2011 at 04:20:44PM +0000, Pedro Alves wrote:
> > Would CAP_CHECKPOINT be a shame too?
>
> I think CAP_CHECKPOINT (or something through some LSM) would be
> definitely better.
>
> > I'm reluctant about priviledge
> > through fd inheritance mostly because of its unusualness. I don't
> > think priv management is a good problem space for small creative
> > solutions. We're much better off with mundane mechanisms which people
> > are already familiar with and is easy to account for.
>
> fd inheritance wouldn't work for gdb; a user spawned gdb
> wouldn't inherit an open fd to kernel.ns_last_pid from anywhere.

I see. So, let's do it for root for now and later add finer grained
CAP as necessary/viable. Pavel, what do you think?

Thanks.

--
tejun
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