Re: [PATCH] mmu notifiers #v5

[Robin Holt]

On Thu, Jan 31, 2008 at 05:37:21PM -0800, Christoph Lameter wrote:
> On Fri, 1 Feb 2008, Andrea Arcangeli wrote:
> 
> > I appreciate the review! I hope my entirely bug free and
> > strightforward #v5 will strongly increase the probability of getting
> > this in sooner than later. If something else it shows the approach I
> > prefer to cover GRU/KVM 100%, leaving the overkill mutex locking
> > requirements only to the mmu notifier users that can't deal with the
> > scalar and finegrined and already-taken/trashed PT lock.
> 
> Mutex locking? Could you be more specific?

I think he is talking about the external locking that xpmem will need
to do to ensure we are not able to refault pages inside of regions that
are undergoing recall/page table clearing.  At least that has been my
understanding to this point.

Thanks,
Robin
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