On 18 Jun 2025, at 13:40, David Hildenbrand wrote:

... instead, look them up statically based on the page type. Maybe in the
future we want a registration interface? At least for now, it can be
easily handled using the two page types that actually support page
migration.

The remaining usage of page->mapping is to flag such pages as actually
being movable (having movable_ops), which we will change next.

Signed-off-by: David Hildenbrand <redacted>
---
 include/linux/balloon_compaction.h |  2 +-
 include/linux/migrate.h            | 14 ++------------
 include/linux/zsmalloc.h           |  2 ++
 mm/balloon_compaction.c            |  1 -
 mm/compaction.c                    |  5 ++---
 mm/migrate.c                       | 23 +++++++++++++++++++++++
 mm/zpdesc.h                        |  5 ++---
 mm/zsmalloc.c                      |  8 +++-----
 8 files changed, 35 insertions(+), 25 deletions(-)

Reviewed-by: Zi Yan <ziy@nvidia.com>

--
Best Regards,
Yan, Zi