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SubjectRe: [PATCH 14/14] mm,migration: Allow the migration of PageSwapCache pages
On Fri,  2 Apr 2010 17:02:48 +0100
Mel Gorman <mel@csn.ul.ie> wrote:

> PageAnon pages that are unmapped may or may not have an anon_vma so are
> not currently migrated. However, a swap cache page can be migrated and
> fits this description. This patch identifies page swap caches and allows
> them to be migrated but ensures that no attempt to made to remap the pages
> would would potentially try to access an already freed anon_vma.
>
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>

Seems nice to me.

Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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