Re: [RESEND PATCH v3 kernel 1/7] virtio-balloon: rework deflate to add page to a list

From: Dave Hansen
Date: Mon Oct 24 2016 - 12:46:10 EST


On 10/20/2016 11:24 PM, Liang Li wrote:
> Will allow faster notifications using a bitmap down the road.
> balloon_pfn_to_page() can be removed because it's useless.

This is a pretty terse description of what's going on here. Could you
try to elaborate a bit? What *is* the current approach? Why does it
not work going forward? What do you propose instead? Why is it better?