Benjamin Herrenschmidt <b...@kernel.crashing.org> wrote on 2010/03/16 22:20:52:
>
> On Fri, 2010-02-26 at 09:29 +0100, Joakim Tjernlund wrote:
> > Only the swap function cares about the ACCESSED bit in
> > the pte. Do not waste cycles updateting ACCESSED when swap
> > is not compiled into the kernel.
> > ---
>
> Your changeset comment is a bit misleading since the code isn't actually
> updating ACCESSED... it's testing if ACCESSED is set and goes to the
> higher level fault if not (which might then update ACCESSED).
Right, I did have one or two variants that did update ACCESSED that
I experimented with, I guess that I got a bit confused by that.
The jury is still out on whether this patch is an improvement or not.
Jocke
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