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: > > > > https://lore.kernel.org/patchwork/patch/961038/ > > 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: https://lkml.org/lkml/2018/6/27/461 and https://lkml.org/lkml/2018/7/11/795 See also https://lkml.org/lkml/2018/7/10/1157 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
