Quoting Paul Menage (menage@google.com):
> On 10/16/07, Serge E. Hallyn <serue@us.ibm.com> wrote:
> >
> > Currently every pid namespace's pid==1 must stick around as long as the
> > pid namespace does.  If you kill the pid==1, all processes in the
> > container are killed.
> 
> What about people who aren't using pid namespaces?

Not really isolated?  :)

> > > > Anyway, I can go ahead and add 'int which' to the parameter list now,
> > > > and leave the details of how to specify a cgroup for later.  That way at
> > > > least the api won't fundamentally change again.
> > >
> > > Great, thanks.
> >
> > Since the goal here is to get the API right, do you know how we expect
> > to send the cgroup in?  A string?
> 
> My thought was to use an fd on an open cgroup directory - that can be
> trivially translated into a cgroup.

Oh good, so I can just pass in a single arg id, so

asmlinkage long sys_hijack(unsigned long clone_flags, int which,
			   unsigned long id);

?

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