Re: [RFC][PATCH 0/1] Node-based reclaim/migration

Christoph Lameter
2006-12-01T19:56:46Z

On Fri, 1 Dec 2006, Paul Menage wrote:

>
> I was thinking of a new anon_vma, rather than a new vma - but I guess
> that even if we do race with someone who's faulting on the page and
> pulling it from the swap cache, they'll just set the page mapping to
> the same value as it is already, rather than setting it to a new
> value. So you're right, not a problem.

The page is locked during migration to prevent such occurrences.