Hello,
On Thu, Nov 26, 2015 at 11:25:11PM -0600, Serge E. Hallyn wrote:
> > > + /* Short-circuit the easy case - kn_to is the root node. */
> > > + if ((kn_from == kn_to) || (!kn_from && !kn_to->parent)) {
> > > + *p = '/';
> > > + *(p + 1) = '\0';
> >
> > Hmm... so if kn_from == kn_to, the output is "/"?
>
> Yes, that's what seems to make the most sense for cgroup namespaces. I
> could see a case for '.' being used instead in general, but for cgroup
> namespaces I think we'd have to convert those back to '/'. Otherwise
> we'll fail in being able to run legacy software, which would get
> confused.
Yeah, I agree but the name is kinda misleading tho. The output isn't
really a relative path but rather absolute path against the specified
root. Maybe updating the function and parameter names would be
helpful?
Thanks.
--
tejun
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