On Tue, 2006-08-01 at 14:31 -0700, Christoph Lameter wrote:
> On Tue, 1 Aug 2006, Chris Wright wrote:
>
> > We got the opposite feedback the first time we posted this function.
> > Xen has some users, and I believe there's a couple in-tree functions we could
> > convert easily w/out overhead issues. It's generic and this is just the
> > infrastructure, I think we should leave it.
>
> Th generic method was proposed a number of times in the past including
> by Nick Piggin and more recently by the page table abstraction layer
> posted by Ian Wienand. See also
>
> http://www.gelato.org/pdf/apr2006/gelato_ICE06apr_unsw.pdf
> http://www.gelato.org/pdf/may2005/gelato_may2005_ia64vm_chubb_unsw.pdf.
> http://lwn.net/Articles/124961/
>
> Special functionality may be attached at various levels, and we are very
> sensitive to changes in this area.
Hi Christoph,
Thanks for the pointers, but as you've been debating for 18 months now,
no patches are in the -mm tree or obviously about to go in, and this new
helper function is orthogonal to your work, I don't think it's
reasonable to delay this patch.
All we can reasonably do is push this function back into the xen part
of the kernel tree for now.
Rusty.
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