363 static int erofs_prepare_dio(struct kiocb *iocb, struct iov_iter *to)  in erofs_prepare_dio()  argument
365 	struct inode *inode = file_inode(iocb->ki_filp);  in erofs_prepare_dio()
366 	loff_t align = iocb->ki_pos | iov_iter_count(to) |  in erofs_prepare_dio()
384 	    iocb->ki_pos + iov_iter_count(to) >  in erofs_prepare_dio()
390 static ssize_t erofs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)  in erofs_file_read_iter()  argument
397 	if (IS_DAX(iocb->ki_filp->f_mapping->host))  in erofs_file_read_iter()
398 		return dax_iomap_rw(iocb, to, &erofs_iomap_ops);  in erofs_file_read_iter()
400 	if (iocb->ki_flags & IOCB_DIRECT) {  in erofs_file_read_iter()
401 		int err = erofs_prepare_dio(iocb, to);  in erofs_file_read_iter()
404 			return iomap_dio_rw(iocb, to, &erofs_iomap_ops,  in erofs_file_read_iter()
409 	return generic_file_buffered_read(iocb, to, 0);  in erofs_file_read_iter()