On 1/15/26 10:32, Michael S. Tsirkin wrote:

On Thu, Jan 15, 2026 at 10:19:50AM +0100, David Hildenbrand (Red Hat) wrote:

quoted

I started with wanting to remove the dependency of the balloon
infrastructure on the page lock, but ended up performing various other
cleanups, some of which I had on my todo list for years.

This series heavily cleans up and simplifies our balloon infrastructure,
including our balloon page migration functionality.

With this series, we no longer make use of the page lock for PageOffline
pages as part of the balloon infrastructure (preparing for memdescs
where PageOffline pages won't have any such lock), and simplifies
migration handling such that refcounting can more easily be adjusted
later (long-term focus is for PageOffline pages to not have a refcount
either).

Plenty of related cleanups.

Heavily compile-tested and heavily runtime-tested with virtio-balloon.
PPC CMM and the VMware balloon are untested and I'd appreciate a helping
hand from people that have suitable environments.

Not CCing maintainers for the vmscan.c and migrate.c change as they
are rather trivial and I don't want to patchbomb them.

besides MAINTAINERS thing:

Acked-by: Michael S. Tsirkin <mst@redhat.com>

Thanks!

-- 
Cheers

David