Re: [PATCH] Take anonymous pages off the LRU if we have no swap

Christoph Lameter
2007-02-22T18:45:06Z

On Thu, 22 Feb 2007, Paul Menage wrote:

> On 2/21/07, Christoph Lameter <clameter@sgi.com> wrote:
> > If the kernel was compiled without support for swapping then we have no
> > means
> > of evicting anonymous pages and they become like mlocked pages.
>
> How will this interact with page migration?

The same way as mlocked pages are handled.

> In order to start migrating a page, the migration paths call
> isolate_lru_page(), which returns -EBUSY if the page isn't on an LRU.

Not anymore. Check Andrew's tree.