OF_DYNAMIC node lifecycle

[Grant Likely]

On Mon, 23 Jun 2014 18:26:04 +0300, Pantelis Antoniou <pantelis.antoniou at konsulko.com> wrote:
> On Jun 23, 2014, at 5:58 PM, Grant Likely wrote:
> > We'll also need a transition plan to move to RCU. I think the existing
> > iterators can be modified to do the rcu locking in-line, but still require
> > the of_node_get/put stuff (basically, so existing code continue to works
> > unchanged). Then we can add _rcu versions that drop the need for
> > of_node_get/put(). When everything is converted, the old iterators can
> > be dropped.
> > 
> 
> Eventually yes. We're not close to that yet. I'd be happy if we get the 
> lifecycle issues fixed right now (with of_node_get/put) and plan ahead.
> I am sure we missed a few things, which we will come across.

If we agree on the plan to keep of_node_get/put, but strongly reduce the
usage by switching to RCU, then I'm generally okay with proceeding with
the overlay feature because I can see how it would work in the new
model.

g.