570 	if (STp->buffer->do_dio) {  in st_do_scsi()
1505 			STbp->do_dio = i;  in setup_buffering()
1509 			STbp->do_dio = 0;  /* fall back to buffering with any error */  in setup_buffering()
1510 		STbp->sg_segs = STbp->do_dio;  in setup_buffering()
1512 		     if (STbp->do_dio) {  in setup_buffering()
1514 			STp->nbr_pages += STbp->do_dio;  in setup_buffering()
1518 		STbp->do_dio = 0;  in setup_buffering()
1521 	if (!STbp->do_dio) {  in setup_buffering()
1556 	if (STbp->do_dio) {  in release_buffering()
1557 		sgl_unmap_user_pages(STbp, STbp->do_dio, is_read);  in release_buffering()
1558 		STbp->do_dio = 0;  in release_buffering()
1649 	    !STbp->do_dio &&  in st_write()
1671 		if (STbp->do_dio) {  in st_write()
1693 		async_write = STp->block_size == 0 && !STbp->do_dio &&  in st_write()
1709 			if (!STbp->do_dio)  in st_write()
1873 			if (!STbp->do_dio && bytes > (STp->buffer)->buffer_size)  in read_tape()
2043 	int special, do_dio = 0;  in st_read()  local
2083 	do_dio = STbp->do_dio;  in st_read()
2096 	if (do_dio) {  in st_read()
2134 			if (!do_dio) {  in st_read()
2174 	if (do_dio) {  in st_read()
2652 	WARN_ON(STp->buffer->do_dio != 0);  in st_int_ioctl()