Re: page_launder() on 2.4.9/10 issue

[Alan Cox]

> Pages allocated with do_anonymous_page are not added to the active list.
> as a result there is no aging information for a page until it is
> unmapped. So we might be unmapping and allocating swap for shared pages

Right ok. 

> I guess it is just more carefully papering over the existing problems.

If you are correct then I suspect the better behaviour is primarily coming
from the balancing algorithms and the choices made rather than the quality
of data suggested.

When Rik gets back off a plane this sounds like something that should be
tested - one item at a time.

Alan