[PATCH 3/3] C/R: Basic support for network namespaces and devices

Oren Laadan orenl at cs.columbia.edu
Thu Jan 21 08:14:15 PST 2010


On Thu, 21 Jan 2010, Dan Smith wrote:

> OL> Would this compile without CONFIG_NET ?  without CONFIG_NET_NS ?
> 
> Nope, but it does depend on CONFIG_CHECKPOINT, of course.  I'll add
> some Kconfig magic to try to straighten that out.
> 
> OL> How can a user ask to not checkpoint the network-ns ?  (e.g. in
> OL> a subtree checkpoint)
> 
> Do we really want to start adding fine-grained control over everything
> that we checkpoint?  Can you ask it to not checkpoint the ipc_ns, 
> uts_ns, etc?

Basically yes. So far we didn't address how to do that.

With network-ns it's a bit different, because, iiuc, it will require root 
for a restart even of a subtree checkpoint (that doesn't care about pids), 
just by being there.

> The previous example of this was connected sockets,
> which I think is different, given the potential for a long delay
> before restart ensuring the sockets will be dead anyway.

Agreed.

Oren.


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