Let's pass a folio; we are always mapping the entire thing.

Link: https://lkml.kernel.org/r/20230913125113.313322-7-david@redhat.comSigned-off-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>