717 			nr = file->f_op->read(file, addr, len, ppos);  in loop_rw_iter()
719 			nr = file->f_op->write(file, addr, len, ppos);  in loop_rw_iter()
806 	    !(req->file->f_op->fop_flags & FOP_BUFFER_RASYNC))  in io_rw_should_retry()
823 	if (likely(file->f_op->read_iter))  in io_iter_do_read()
824 		return file->f_op->read_iter(&rw->kiocb, iter);  in io_iter_do_read()
825 	else if (file->f_op->read)  in io_iter_do_read()
867 		if (!(kiocb->ki_flags & IOCB_DIRECT) || !file->f_op->iopoll)  in io_rw_init_file()
1135 		    !(req->file->f_op->fop_flags & FOP_BUFFER_WASYNC) &&  in io_write()
1155 	if (likely(req->file->f_op->write_iter))  in io_write()
1156 		ret2 = req->file->f_op->write_iter(kiocb, &io->iter);  in io_write()
1157 	else if (req->file->f_op->write)  in io_write()
1243 		return file->f_op->uring_cmd_iopoll(ioucmd, iob, poll_flags);  in io_uring_classic_poll()
1247 		return file->f_op->iopoll(&rw->kiocb, iob, poll_flags);  in io_uring_classic_poll()