612 static int set_mode_densblk(Scsi_Tape * STp, ST_mode * STm)  in set_mode_densblk()  argument
619 	    STm->default_density >= 0 &&  in set_mode_densblk()
620 	    STm->default_density != STp->density) {  in set_mode_densblk()
621 		arg = STm->default_density;  in set_mode_densblk()
627 	    STm->default_blksize >= 0 &&  in set_mode_densblk()
628 	    STm->default_blksize != STp->block_size) {  in set_mode_densblk()
629 		arg |= STm->default_blksize;  in set_mode_densblk()
637 		       dev, STm->default_blksize, STm->default_density);  in set_mode_densblk()
735 	ST_mode *STm;  in check_tape()  local
749 	STm = &(STp->modes[STp->current_mode]);  in check_tape()
906 		if (!(STm->defaults_for_writes) &&  in check_tape()
907 		    (retval = set_mode_densblk(STp, STm)) < 0)  in check_tape()
1036 	ST_mode *STm;  in st_flush()  local
1050 	STm = &(STp->modes[STp->current_mode]);  in st_flush()
1115 		if (!STm->sysv || STps->rw != ST_READING) {  in st_flush()
1202 	ST_mode *STm;  in st_write()  local
1239 	STm = &(STp->modes[STp->current_mode]);  in st_write()
1240 	if (!STm->defined) {  in st_write()
1325 		if ((retval = set_mode_densblk(STp, STm)) < 0)  in st_write()
1327 		if (STm->default_compression != ST_DONT_TOUCH &&  in st_write()
1329 			if (st_compression(STp, (STm->default_compression == ST_YES))) {  in st_write()
1358 	if (!STm->do_buffer_writes) {  in st_write()
1368 	if (!STm->do_async_writes || STp->block_size > 0)  in st_write()
1380 	while ((STp->block_size == 0 && !STm->do_async_writes && count > 0) ||  in st_write()
1521 	if (STm->do_async_writes && STp->block_size == 0) {  in st_write()
1563 	ST_mode *STm;  in read_tape()  local
1571 	STm = &(STp->modes[STp->current_mode]);  in read_tape()
1582 		if (STm->do_read_ahead) {  in read_tape()
1745 	ST_mode *STm;  in st_read()  local
1781 	STm = &(STp->modes[STp->current_mode]);  in st_read()
1782 	if (!STm->defined) {  in st_read()
1818 	if (!(STm->do_read_ahead) && STp->block_size != 0 &&  in st_read()
1936 static void st_log_options(Scsi_Tape * STp, ST_mode * STm, int dev)  in st_log_options()  argument
1940 	       dev, STp->current_mode, STm->do_buffer_writes, STm->do_async_writes,  in st_log_options()
1941 	       STm->do_read_ahead);  in st_log_options()
1947 	       dev, STm->defaults_for_writes, STp->omit_blklims, STp->can_partitions,  in st_log_options()
1950 	       "st%d:    sysv: %d nowait: %d\n", dev, STm->sysv, STp->immediate);  in st_log_options()
1961 	ST_mode *STm;  in st_set_options()  local
1964 	STm = &(STp->modes[STp->current_mode]);  in st_set_options()
1965 	if (!STm->defined) {  in st_set_options()
1966 		memcpy(STm, &(STp->modes[0]), sizeof(ST_mode));  in st_set_options()
1975 		STm->do_buffer_writes = (options & MT_ST_BUFFER_WRITES) != 0;  in st_set_options()
1976 		STm->do_async_writes = (options & MT_ST_ASYNC_WRITES) != 0;  in st_set_options()
1977 		STm->defaults_for_writes = (options & MT_ST_DEF_WRITES) != 0;  in st_set_options()
1978 		STm->do_read_ahead = (options & MT_ST_READ_AHEAD) != 0;  in st_set_options()
1988 		STm->sysv = (options & MT_ST_SYSV) != 0;  in st_set_options()
1990 		st_log_options(STp, STm, dev);  in st_set_options()
1994 			STm->do_buffer_writes = value;  in st_set_options()
1996 			STm->do_async_writes = value;  in st_set_options()
1998 			STm->defaults_for_writes = value;  in st_set_options()
2000 			STm->do_read_ahead = value;  in st_set_options()
2019 			STm->sysv = value;  in st_set_options()
2023 		st_log_options(STp, STm, dev);  in st_set_options()
2029 			STm->default_blksize = (-1);  in st_set_options()
2032 			STm->default_blksize = value;  in st_set_options()
2034 			       dev, STm->default_blksize);  in st_set_options()
2037 				set_mode_densblk(STp, STm);  in st_set_options()
2067 				STm->default_density = (-1);  in st_set_options()
2071 				STm->default_density = value & 0xff;  in st_set_options()
2073 				       dev, STm->default_density);  in st_set_options()
2076 					set_mode_densblk(STp, STm);  in st_set_options()
2094 				STm->default_compression = ST_DONT_TOUCH;  in st_set_options()
2104 					STm->default_compression = (value & 1 ? ST_YES : ST_NO);  in st_set_options()
2109 						st_compression(STp, (STm->default_compression == ST_YES));  in st_set_options()
3086 	ST_mode *STm;  in st_ioctl()  local
3104 	STm = &(STp->modes[STp->current_mode]);  in st_ioctl()
3140 		if (!STm->defined &&  in st_ioctl()
3293 	if (!STm->defined) {  in st_ioctl()
3359 		if (STm->do_async_writes ||  in st_ioctl()
3360                     (STm->do_buffer_writes && STp->block_size != 0) ||  in st_ioctl()
3789 	ST_mode *STm;  in st_attach()  local
3920 		STm = &(tpnt->modes[i]);  in st_attach()
3921 		STm->defined = FALSE;  in st_attach()
3922 		STm->sysv = ST_SYSV;  in st_attach()
3923 		STm->defaults_for_writes = 0;  in st_attach()
3924 		STm->do_async_writes = ST_ASYNC_WRITES;  in st_attach()
3925 		STm->do_buffer_writes = ST_BUFFER_WRITES;  in st_attach()
3926 		STm->do_read_ahead = ST_READ_AHEAD;  in st_attach()
3927 		STm->default_compression = ST_DONT_TOUCH;  in st_attach()
3928 		STm->default_blksize = (-1);	/* No forced size */  in st_attach()
3929 		STm->default_density = (-1);	/* No forced density */  in st_attach()