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SubjectRe: [HMM-v25 13/19] mm/migrate: new migrate mode MIGRATE_SYNC_NO_COPY
On Wed, 16 Aug 2017 20:05:42 -0400 J__r__me Glisse <> wrote:

> Introduce a new migration mode that allow to offload the copy to
> a device DMA engine. This changes the workflow of migration and
> not all address_space migratepage callback can support this. So
> it needs to be tested in those cases.

Can you please expand on this? What additional testing must be
performed before we are able to merge this into mainline?

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