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SubjectRe: [PATCH v1 6/6] virtio-balloon: Add support for aerating memory via hinting
On Tue, Jul 16, 2019 at 03:01:52PM +0000, Wang, Wei W wrote:
> On Tuesday, July 16, 2019 10:41 PM, Hansen, Dave wrote:
> > Where is the page allocator integration? The set you linked to has 5 patches,
> > but only 4 were merged. This one is missing:
> >
> >
> For some reason, we used the regular page allocation to get pages
> from the free list at that stage.

This is what Linus suggested, that is why:


See also

for some failed attempts to upstream mm core changes
related to this.

> This part could be improved by Alex
> or Nitesh's approach.
> The page address transmission from the balloon driver to the host
> device could reuse what's upstreamed there. I think you could add a
> new VIRTIO_BALLOON_CMD_xx for your usages.
> Best,
> Wei

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