Re: [virtio-dev] Re: [PATCH v25 2/2] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT

From: Michael S. Tsirkin
Date: Thu Feb 01 2018 - 11:04:16 EST


On Thu, Feb 01, 2018 at 05:43:22PM +0800, Wei Wang wrote:
> 3) Hints means the pages are quite likely to be free pages (no guarantee).
> If the pages given to host are going to be freed, then we really couldn't
> call them hints, they are true free pages. Ballooning needs true free pages,
> while live migration needs hints, would you agree with this?

It's an interesting point, I'm convinced by it.

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MST