On 11/28, Peter Zijlstra wrote: > > On Thu, Nov 28, 2013 at 04:34:43PM +0100, Oleg Nesterov wrote: > > But note that in the longer term we might want even more. We probably > > want a non-daemonized thread controlled by the user-space. And even > > more, this thread should be per-namespace (this needs a lot more > > discussion). > > Which namespace? PID namespace I presume where we can have a 'new' init > task and everything. > > I'm not sure, are any of these things (workqueues, userspace helpers) > pid namespace aware? If not it doesn't seem to make sense to expose this > to nested PID namespaces and would be something special for the root > namespace.
Not sure I understand correctly. But yes, of course, it is not that call_usermodehelper() should be namespace-friendly "unconditionally". We need another API (although perhaps we can simply add UMH_NAMESPACE flag, this doesn't matter). Just for example, the piped core handler. Currently it is hardly useful in containers. > > But whataver we do later, I believe that the patch from Zhang should > > be applied now. > > Probably, although with a much adjusted changelog. Zhang, please make v3 ;) Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
