Re: [PATCH] fs: fcntl_setlease defies lease_init assumptions

[Martin J. Bligh]

Christoph Lameter wrote:
> On Mon, 8 May 2006, Martin J. Bligh wrote:
>
>
> > Can't you use sparsemem instead? It solves the same problem without the
> > magic faulting, doesn't it?
>
>
> But sparsemem has more complex table lookups. Ultimately IA64 will move 
> to sparsemem (I think) but we are not there yet and we would like to be 
> sure that there are no performance regressions with that move.

Please explain your concerns in more detail re complexity. I was under
the impression the design avoided that nicely by folding the
calculations together down into a single layer.

It's been around for a long time now ... has nobody tested the
performance on ia64 yet?

M.
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