On 04.02.25 23:48, Alistair Popple wrote:
The rmap doesn't currently support adding a PUD mapping of a folio. This patch adds support for entire PUD mappings of folios, primarily to allow for more standard refcounting of device DAX folios. Currently DAX is the only user of this and it doesn't require support for partially mapped PUD-sized folios so we don't support for that for now. Signed-off-by: Alistair Popple <apopple@xxxxxxxxxx> Acked-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Nit: patch subject should start with "mm/rmap:" -- Cheers, David / dhildenb
