Re: [RFC][PATCH 1/5] Virtualization/containers: startup

[Kirill Korotaev]

> On Fri, Feb 03, 2006 at 10:34:01AM -0800, Dave Hansen wrote:
> > Lastly, is this a place for krefs?  I don't see a real need for a
> > destructor yet, but the idea is fresh in my mind.
>
> Well, what happens when you drop the last reference to this container?
> Right now, your patch doesn't cause anything to happen, and if that's
> acceptable, then fine, you don't need to use a struct kref.
>
> But if not, then why have a reference count at all?  :)

Please note, this patch introduces only small parts of it.
It doesn't introduce the code which creates containers/destroys them etc.

As I mentioned in another email:
In OpenVZ we have 2-level refcounting (mentioned recently by Linus as in 
mm). Process counter is used to decide when container should 
collapse/cleanuped and real refcounter is used to free the structures 
which can be referenced from somewhere else.

Kirill

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