2022-11-14 1:28 GMT+09:00, Christoph Hellwig <hch@xxxxxx>: > ->writepage is a very inefficient method to write back data, and only > used through write_cache_pages or a a fallback when no ->migrate_folio > method is present. > > Set ->migrate_folio to the generic buffer_head based helper, and remove > the ->writepage implementation. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Acked-by: Namjae Jeon <linkinjeon@xxxxxxxxxx> Thanks!