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Eric W. Biederman wrote:
> Hubertus Franke <frankeh@watson.ibm.com> writes:
>
>
>>find_task_by_pid( pid ) { return find_task_pidspace_by_pid ( current->pspace,
>>pid ); }>>>>and then only deal with the exceptional cases using find_task_pidspace_by_pid
>>when the pidspace is different..
>
>
> That is a possibility. However I want to break some eggs so that the
> users are updated appropriately. It is only by a strenuous act of
> will that I don't change the type of pid,tgid,pgrp,session.
>
> The size of the changes is much less important than being clear.
> So for I want find_task_by_pid to be an absolute interface.
>
Fair enough, valid answers .. I checked the patch and it would only take
19/33 instances out .. so not the end of the world.
> > >>> Does the use of clone to create a new namespace instance look
>>> like the sane approach?
>>>>>>>At he surface it looks OK .. how does this work in a multi-threaded
>>process which does cloen ( CLONE_NPSPACE ) ?>>We discussed at some point that exec is the right place to do it,
>>but what I get is that because this is the container_init task
>>we are OK !>>A bit clarification would help here ...> > > Well the parent doesn't much matter. But the child must have a fresh
> start on all the groups of processes. As all other groupings known by
> a pid are per pspace, so they can't cross that line.
>
Now, on which kernel does this compile/work ?
Do you have a "helper" program you can share that starts/exec's an
app under a new container (uhmm, namespace). No point for us to
actually write that..
-- Hubertus
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