244 		struct dm_target *tgt = t->targets + i;  in dm_table_destroy()  local
246 		if (tgt->type->dtr)  in dm_table_destroy()
247 			tgt->type->dtr(tgt);  in dm_table_destroy()
249 		dm_put_target_type(tgt->type);  in dm_table_destroy()
713 	struct dm_target *tgt;  in dm_table_add_target()  local
723 	tgt = t->targets + t->num_targets;  in dm_table_add_target()
724 	memset(tgt, 0, sizeof(*tgt));  in dm_table_add_target()
731 	tgt->type = dm_get_target_type(type);  in dm_table_add_target()
732 	if (!tgt->type) {  in dm_table_add_target()
737 	if (dm_target_needs_singleton(tgt->type)) {  in dm_table_add_target()
739 			tgt->error = "singleton target type must appear alone in table";  in dm_table_add_target()
745 	if (dm_target_always_writeable(tgt->type) && !(t->mode & FMODE_WRITE)) {  in dm_table_add_target()
746 		tgt->error = "target type may not be included in a read-only table";  in dm_table_add_target()
751 		if (t->immutable_target_type != tgt->type) {  in dm_table_add_target()
752 			tgt->error = "immutable target type cannot be mixed with other target types";  in dm_table_add_target()
755 	} else if (dm_target_is_immutable(tgt->type)) {  in dm_table_add_target()
757 			tgt->error = "immutable target type cannot be mixed with other target types";  in dm_table_add_target()
760 		t->immutable_target_type = tgt->type;  in dm_table_add_target()
763 	if (dm_target_has_integrity(tgt->type))  in dm_table_add_target()
766 	tgt->table = t;  in dm_table_add_target()
767 	tgt->begin = start;  in dm_table_add_target()
768 	tgt->len = len;  in dm_table_add_target()
769 	tgt->error = "Unknown error";  in dm_table_add_target()
774 	if (!adjoin(t, tgt)) {  in dm_table_add_target()
775 		tgt->error = "Gap in table";  in dm_table_add_target()
781 		tgt->error = "couldn't split parameters (insufficient memory)";  in dm_table_add_target()
785 	r = tgt->type->ctr(tgt, argc, argv);  in dm_table_add_target()
790 	t->highs[t->num_targets++] = tgt->begin + tgt->len - 1;  in dm_table_add_target()
792 	if (!tgt->num_discard_bios && tgt->discards_supported)  in dm_table_add_target()
799 	DMERR("%s: %s: %s", dm_device_name(t->md), type, tgt->error);  in dm_table_add_target()
800 	dm_put_target_type(tgt->type);  in dm_table_add_target()
945 	struct dm_target *tgt;  in dm_table_determine_type()  local
962 		tgt = t->targets + i;  in dm_table_determine_type()
963 		if (dm_target_hybrid(tgt))  in dm_table_determine_type()
965 		else if (dm_target_request_based(tgt))  in dm_table_determine_type()
998 			tgt = dm_table_get_immutable_target(t);  in dm_table_determine_type()
999 			if (tgt && !tgt->max_io_len && dm_table_does_not_support_partial_completion(t)) {  in dm_table_determine_type()
1037 	tgt = dm_table_get_immutable_target(t);  in dm_table_determine_type()
1038 	if (!tgt) {  in dm_table_determine_type()
1041 	} else if (tgt->max_io_len) {  in dm_table_determine_type()
1047 	if (!tgt->type->iterate_devices ||  in dm_table_determine_type()
1048 	    !tgt->type->iterate_devices(tgt, device_is_rq_based, &v)) {  in dm_table_determine_type()