> > Either that, or we don't populate the page tables of the
> > parent and the child at all and have the page tables
> > filled in at fault time.
>
> Yes, you could go that route but you'd have to do some weird and wonderful
> bookkeeping to figure out how to populate those page tables.
Not really, if the page table isn't present you just check whether
you need to allocate a new one or whether you need to instantiate
one.
That can all be done from within pte_alloc, which is always called
by handle_mm_fault()...
regards,
Rik
--
"Linux holds advantages over the single-vendor commercial OS"
-- Microsoft's "Competing with Linux" document
http://www.surriel.com/ http://distro.conectiva.com/
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