641 	if (STp->buffer->do_dio) {  in st_do_scsi()
1588 			STbp->do_dio = i;  in setup_buffering()
1592 			STbp->do_dio = 0;  /* fall back to buffering with any error */  in setup_buffering()
1593 		STbp->sg_segs = STbp->do_dio;  in setup_buffering()
1595 		     if (STbp->do_dio) {  in setup_buffering()
1597 			STp->nbr_pages += STbp->do_dio;  in setup_buffering()
1601 		STbp->do_dio = 0;  in setup_buffering()
1604 	if (!STbp->do_dio) {  in setup_buffering()
1639 	if (STbp->do_dio) {  in release_buffering()
1640 		sgl_unmap_user_pages(STbp, STbp->do_dio, is_read);  in release_buffering()
1641 		STbp->do_dio = 0;  in release_buffering()
1732 	    !STbp->do_dio &&  in st_write()
1754 		if (STbp->do_dio) {  in st_write()
1776 		async_write = STp->block_size == 0 && !STbp->do_dio &&  in st_write()
1792 			if (!STbp->do_dio)  in st_write()
1956 			if (!STbp->do_dio && bytes > (STp->buffer)->buffer_size)  in read_tape()
2129 	int special, do_dio = 0;  in st_read()  local
2169 	do_dio = STbp->do_dio;  in st_read()
2182 	if (do_dio) {  in st_read()
2220 			if (!do_dio) {  in st_read()
2260 	if (do_dio) {  in st_read()
2737 	WARN_ON(STp->buffer->do_dio != 0);  in st_int_ioctl()