1 files changed, 20 insertions, 14 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index c228afba0963..1379e1912772 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -625,6 +625,25 @@ EXPORT_SYMBOL(folio_migrate_copy);
  *                    Migration functions
  ***********************************************************/
 
+int migrate_folio_extra(struct address_space *mapping, struct folio *dst,
+		struct folio *src, enum migrate_mode mode, int extra_count)
+{
+	int rc;
+
+	BUG_ON(folio_test_writeback(src));	/* Writeback must be complete */
+
+	rc = folio_migrate_mapping(mapping, dst, src, extra_count);
+
+	if (rc != MIGRATEPAGE_SUCCESS)
+		return rc;
+
+	if (mode != MIGRATE_SYNC_NO_COPY)
+		folio_migrate_copy(dst, src);
+	else
+		folio_migrate_flags(dst, src);
+	return MIGRATEPAGE_SUCCESS;
+}
+
 /**
  * migrate_folio() - Simple folio migration.
  * @mapping: The address_space containing the folio.
@@ -640,20 +659,7 @@ EXPORT_SYMBOL(folio_migrate_copy);
 int migrate_folio(struct address_space *mapping, struct folio *dst,
 		struct folio *src, enum migrate_mode mode)
 {
-	int rc;
-
-	BUG_ON(folio_test_writeback(src));	/* Writeback must be complete */
-
-	rc = folio_migrate_mapping(mapping, dst, src, 0);
-
-	if (rc != MIGRATEPAGE_SUCCESS)
-		return rc;
-
-	if (mode != MIGRATE_SYNC_NO_COPY)
-		folio_migrate_copy(dst, src);
-	else
-		folio_migrate_flags(dst, src);
-	return MIGRATEPAGE_SUCCESS;
+	return migrate_folio_extra(mapping, dst, src, mode, 0);
 }
 EXPORT_SYMBOL(migrate_folio);