mm: export buffer_migrate_folio_norefs()

Ext4 needs this function to allow safe migration for journalled data pages. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20221207112722.22220-11-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso@mit.edu>
mariux64 · Dec 9, 2022 · e26355e · e26355e
1 parent 49977f9
commit e26355e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/mm/migrate.c b/mm/migrate.c
@@ -820,6 +820,7 @@ int buffer_migrate_folio_norefs(struct address_space *mapping,
 {
 	return __buffer_migrate_folio(mapping, dst, src, mode, true);
 }
+EXPORT_SYMBOL_GPL(buffer_migrate_folio_norefs);
 #endif
 
 int filemap_migrate_folio(struct address_space *mapping,