hugetlb: Convert to migrate_folio

This involves converting migrate_huge_page_move_mapping().  We also need a
folio variant of hugetlb_set_page_subpool(), but that's for a later patch.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index 4ed8f0d53c77..0dd3ec9525b3 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -474,26 +474,26 @@ EXPORT_SYMBOL(folio_migrate_mapping);
  * of folio_migrate_mapping().
  */
 int migrate_huge_page_move_mapping(struct address_space *mapping,
-				   struct page *newpage, struct page *page)
+				   struct folio *dst, struct folio *src)
 {
-	XA_STATE(xas, &mapping->i_pages, page_index(page));
+	XA_STATE(xas, &mapping->i_pages, folio_index(src));
 	int expected_count;
 
 	xas_lock_irq(&xas);
-	expected_count = 2 + page_has_private(page);
-	if (!page_ref_freeze(page, expected_count)) {
+	expected_count = 2 + folio_has_private(src);
+	if (!folio_ref_freeze(src, expected_count)) {
 		xas_unlock_irq(&xas);
 		return -EAGAIN;
 	}
 
-	newpage->index = page->index;
-	newpage->mapping = page->mapping;
+	dst->index = src->index;
+	dst->mapping = src->mapping;
 
-	get_page(newpage);
+	folio_get(dst);
 
-	xas_store(&xas, newpage);
+	xas_store(&xas, dst);
 
-	page_ref_unfreeze(page, expected_count - 1);
+	folio_ref_unfreeze(src, expected_count - 1);
 
 	xas_unlock_irq(&xas);