Messages in this thread | | | Date | Tue, 29 Jan 2002 09:38:50 -0200 (BRST) | From | Rik van Riel <> | Subject | Re: Note describing poor dcache utilization under high memory pressure |
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On Tue, 29 Jan 2002, Daniel Phillips wrote:
> > 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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