[PATCH 2/4] C/R: Basic support for network namespaces and devices (v3)

[Serge E. Hallyn]

Quoting Oren Laadan (orenl at cs.columbia.edu):
> 
> 
> Dan Smith wrote:
> >SH> What exactly is this == 0 case?  Does it mean 'use inherited
> >SH> netns'?
> >
> >It means it wasn't in the checkpoint image to begin with, so yeah,
> >kinda.
> 
> Maybe it's time to define CKPT_OBJREF_NULL for that ?
> (to make it easy to fold, in a separate patch please)

Honestly that wouldn't be any more helpful.  Just a comment.  The
problem is with 0 having a different meaning for each type of
object, so 0 or CKPT_OBJREF_NULL is equally unhelpful imo :)

/* wasn't in the checkpoint image, use the netns of restarting task */

or somesuch

-serge