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?
