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SubjectRe: [RFC][PATCH] Re: Linux 2.4.4-ac10

On Sun, 20 May 2001, Mike Galbraith wrote:

> > Also in all recent kernels, if the machine is swapping, swap cache
> > grows without limits and is hard to recycle, but then again that is
> > a known problem.
> This one bugs me. I do not see that and can't understand why.

To throw away dirty and dead swapcache (its done at swap writepage())
pages page_launder() has to run into its second loop (launder_loop = 1)
(meaning that a lot of clean cache has been thrown out already).

We can "short circuit" this dead swapcache pages by cleaning them in the
first page_launder() loop.

Take a look at the writepage() patch I sent to Linus a few days ago.

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