[Devel] Re: [BIG RFC] Filesystem-based checkpoint

[Dave Hansen]

On Mon, 2008-11-03 at 09:23 -0800, Dave Hansen wrote:
> The problem is that we can't possibly use refcounts (at least the ones
> we have today) alone.  For instance, with the pid namespace, we would
> have 1 ref for the 'init' process doing the sys_restore() call and then
> a possible second refcount for /proc.  Perhaps we could differentiate
> references to namespaces that instantiate objects inside the namespaces
> from purely references to the namespace *itself*.

By this, I mean something along the lines of 'mm_struct's mm_users vs.
mm_count.

-- Dave

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