ext4: persist the new uptodate buffers in ext4_journalled_zero_new_buffers

For new uptodate buffers we also need to call write_end_fn() to persist the
uptodate content, similarly as folio_zero_new_buffers() does it.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Shida Zhang <zhangshida@kylinos.cn>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240830053739.3588573-2-zhangshida@kylinos.cn
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

Author: Shida Zhang

fs/ext4/inode.c

@@ -1371,9 +1371,9 @@ static void ext4_journalled_zero_new_buffers(handle_t *handle,
 					size = min(to, block_end) - start;
 
 					folio_zero_range(folio, start, size);
-					write_end_fn(handle, inode, bh);
 				}
 				clear_buffer_new(bh);
+				write_end_fn(handle, inode, bh);
 			}
 		}
 		block_start = block_end;