tree dc441c213b61e83416f77400cb0492b09d2dbf7a
parent 55708698c5f153f4e390175cdfc395333b2eafbd
author Gu Zheng <guz.fnst@cn.fujitsu.com> 1373968576 +0800
committer Benjamin LaHaise <bcrl@kvack.org> 1373981538 -0400

fs/aio: Add support to aio ring pages migration

As the aio job will pin the ring pages, that will lead to mem migrated
failed. In order to fix this problem we use an anon inode to manage the aio ring
pages, and  setup the migratepage callback in the anon inode's address space, so
that when mem migrating the aio ring pages will be moved to other mem node safely.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>