mm: hugetlb: Use owner_ops on folio_put for hugetlb
Now that we have the folio_owner_ops callback, use it for hugetlb
pages instead of using a dedicated callback.
Since owner_ops is overlaid with lru, we need to unset owner_ops
to allow the use of lru when its isolated. At that point we know
that the reference count is elevated, will not reach 0, and thus
not trigger a callback. Therefore, it is safe to do so provided
we restore it before we put the folio back.
Signed-off-by: Fuad Tabba <tabba@google.com>
3 files changed
