On Fri, 4 Jul 2025 12:24:54 +0200 David Hildenbrand <david@xxxxxxxxxx> wrote: > In the future, as we decouple "struct page" from "struct folio", pages > that support "non-lru page migration" -- movable_ops page migration > such as memory balloons and zsmalloc -- will no longer be folios. They > will not have ->mapping, ->lru, and likely no refcount and no > page lock. But they will have a type and flags 🙂 > > This is the first part (other parts not written yet) of decoupling > movable_ops page migration from folio migration. > > In this series, we get rid of the ->mapping usage, and start cleaning up > the code + separating it from folio migration. > > Migration core will have to be further reworked to not treat movable_ops > pages like folios. This is the first step into that direction. > > Heavily tested with virtio-balloon and lightly tested with zsmalloc > on x86-64. Cross-compile-tested. Thanks, I added this to mm-new. I suppressed the 1363 mm-commits emails to avoid breaking the internet.
