50 	struct dasd_device *device;  member
429 		new->device = NULL;  in dasd_add_busid()
483 			BUG_ON(devmap->device != NULL);  in dasd_forget_ranges()
498 	struct dasd_device *device;  in dasd_device_from_devindex()  local
510 	if (devmap && devmap->device) {  in dasd_device_from_devindex()
511 		device = devmap->device;  in dasd_device_from_devindex()
512 		dasd_get_device(device);  in dasd_device_from_devindex()
514 		device = ERR_PTR(-ENODEV);  in dasd_device_from_devindex()
516 	return device;  in dasd_device_from_devindex()
542 	struct dasd_device *device;  in dasd_create_device()  local
550 	device = dasd_alloc_device();  in dasd_create_device()
551 	if (IS_ERR(device))  in dasd_create_device()
552 		return device;  in dasd_create_device()
553 	atomic_set(&device->ref_count, 3);  in dasd_create_device()
556 	if (!devmap->device) {  in dasd_create_device()
557 		devmap->device = device;  in dasd_create_device()
558 		device->devindex = devmap->devindex;  in dasd_create_device()
559 		device->features = devmap->features;  in dasd_create_device()
561 		device->cdev = cdev;  in dasd_create_device()
569 		dasd_free_device(device);  in dasd_create_device()
574 	dev_set_drvdata(&cdev->dev, device);  in dasd_create_device()
577 	return device;  in dasd_create_device()
590 dasd_delete_device(struct dasd_device *device)  in dasd_delete_device()  argument
597 	devmap = dasd_find_busid(dev_name(&device->cdev->dev));  in dasd_delete_device()
600 	if (devmap->device != device) {  in dasd_delete_device()
602 		dasd_put_device(device);  in dasd_delete_device()
605 	devmap->device = NULL;  in dasd_delete_device()
609 	spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);  in dasd_delete_device()
610 	dev_set_drvdata(&device->cdev->dev, NULL);  in dasd_delete_device()
611 	spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);  in dasd_delete_device()
617 	atomic_sub(3, &device->ref_count);  in dasd_delete_device()
620 	wait_event(dasd_delete_wq, atomic_read(&device->ref_count) == 0);  in dasd_delete_device()
623 	cdev = device->cdev;  in dasd_delete_device()
624 	device->cdev = NULL;  in dasd_delete_device()
630 	dasd_free_device(device);  in dasd_delete_device()
638 dasd_put_device_wake(struct dasd_device *device)  in dasd_put_device_wake()  argument
652 	struct dasd_device *device = dev_get_drvdata(&cdev->dev);  in dasd_device_from_cdev_locked()  local
654 	if (!device)  in dasd_device_from_cdev_locked()
656 	dasd_get_device(device);  in dasd_device_from_cdev_locked()
657 	return device;  in dasd_device_from_cdev_locked()
666 	struct dasd_device *device;  in dasd_device_from_cdev()  local
670 	device = dasd_device_from_cdev_locked(cdev);  in dasd_device_from_cdev()
672 	return device;  in dasd_device_from_cdev()
675 void dasd_add_link_to_gendisk(struct gendisk *gdp, struct dasd_device *device)  in dasd_add_link_to_gendisk()  argument
679 	devmap = dasd_find_busid(dev_name(&device->cdev->dev));  in dasd_add_link_to_gendisk()
689 	struct dasd_device *device;  in dasd_device_from_gendisk()  local
694 	device = NULL;  in dasd_device_from_gendisk()
697 	if (devmap && devmap->device) {  in dasd_device_from_gendisk()
698 		device = devmap->device;  in dasd_device_from_gendisk()
699 		dasd_get_device(device);  in dasd_device_from_gendisk()
702 	return device;  in dasd_device_from_gendisk()
712 static ssize_t dasd_ff_show(struct device *dev, struct device_attribute *attr,  in dasd_ff_show()
726 static ssize_t dasd_ff_store(struct device *dev, struct device_attribute *attr,  in dasd_ff_store()
746 	if (devmap->device)  in dasd_ff_store()
747 		devmap->device->features = devmap->features;  in dasd_ff_store()
758 dasd_ro_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_ro_show()
772 dasd_ro_store(struct device *dev, struct device_attribute *attr,  in dasd_ro_store()
776 	struct dasd_device *device;  in dasd_ro_store()  local
793 	device = devmap->device;  in dasd_ro_store()
794 	if (device) {  in dasd_ro_store()
795 		device->features = devmap->features;  in dasd_ro_store()
796 		val = val || test_bit(DASD_FLAG_DEVICE_RO, &device->flags);  in dasd_ro_store()
799 	if (device && device->block && device->block->gdp)  in dasd_ro_store()
800 		set_disk_ro(device->block->gdp, val);  in dasd_ro_store()
810 dasd_erplog_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_erplog_show()
824 dasd_erplog_store(struct device *dev, struct device_attribute *attr,  in dasd_erplog_store()
844 	if (devmap->device)  in dasd_erplog_store()
845 		devmap->device->features = devmap->features;  in dasd_erplog_store()
857 dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_use_diag_show()
871 dasd_use_diag_store(struct device *dev, struct device_attribute *attr,  in dasd_use_diag_store()
890 	if (!devmap->device && !(devmap->features & DASD_FEATURE_USERAW)) {  in dasd_use_diag_store()
908 dasd_use_raw_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_use_raw_show()
922 dasd_use_raw_store(struct device *dev, struct device_attribute *attr,  in dasd_use_raw_store()
939 	if (!devmap->device && !(devmap->features & DASD_FEATURE_USEDIAG)) {  in dasd_use_raw_store()
954 dasd_safe_offline_store(struct device *dev, struct device_attribute *attr,  in dasd_safe_offline_store()
958 	struct dasd_device *device;  in dasd_safe_offline_store()  local
961 	device = dasd_device_from_cdev(cdev);  in dasd_safe_offline_store()
962 	if (IS_ERR(device)) {  in dasd_safe_offline_store()
963 		rc = PTR_ERR(device);  in dasd_safe_offline_store()
967 	if (test_bit(DASD_FLAG_OFFLINE, &device->flags) ||  in dasd_safe_offline_store()
968 	    test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {  in dasd_safe_offline_store()
970 		dasd_put_device(device);  in dasd_safe_offline_store()
975 	set_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags);  in dasd_safe_offline_store()
976 	dasd_put_device(device);  in dasd_safe_offline_store()
987 dasd_discipline_show(struct device *dev, struct device_attribute *attr,  in dasd_discipline_show()
990 	struct dasd_device *device;  in dasd_discipline_show()  local
993 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_discipline_show()
994 	if (IS_ERR(device))  in dasd_discipline_show()
996 	else if (!device->discipline) {  in dasd_discipline_show()
997 		dasd_put_device(device);  in dasd_discipline_show()
1001 			       device->discipline->name);  in dasd_discipline_show()
1002 		dasd_put_device(device);  in dasd_discipline_show()
1013 dasd_device_status_show(struct device *dev, struct device_attribute *attr,  in dasd_device_status_show()
1016 	struct dasd_device *device;  in dasd_device_status_show()  local
1019 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_device_status_show()
1020 	if (!IS_ERR(device)) {  in dasd_device_status_show()
1021 		switch (device->state) {  in dasd_device_status_show()
1044 		dasd_put_device(device);  in dasd_device_status_show()
1052 static ssize_t dasd_alias_show(struct device *dev,  in dasd_alias_show()
1055 	struct dasd_device *device;  in dasd_alias_show()  local
1058 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_alias_show()
1059 	if (IS_ERR(device))  in dasd_alias_show()
1062 	if (device->discipline && device->discipline->get_uid &&  in dasd_alias_show()
1063 	    !device->discipline->get_uid(device, &uid)) {  in dasd_alias_show()
1066 			dasd_put_device(device);  in dasd_alias_show()
1070 	dasd_put_device(device);  in dasd_alias_show()
1077 static ssize_t dasd_vendor_show(struct device *dev,  in dasd_vendor_show()
1080 	struct dasd_device *device;  in dasd_vendor_show()  local
1084 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_vendor_show()
1086 	if (IS_ERR(device))  in dasd_vendor_show()
1089 	if (device->discipline && device->discipline->get_uid &&  in dasd_vendor_show()
1090 	    !device->discipline->get_uid(device, &uid))  in dasd_vendor_show()
1093 	dasd_put_device(device);  in dasd_vendor_show()
1105 dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_uid_show()
1107 	struct dasd_device *device;  in dasd_uid_show()  local
1112 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_uid_show()
1114 	if (IS_ERR(device))  in dasd_uid_show()
1117 	if (device->discipline && device->discipline->get_uid &&  in dasd_uid_show()
1118 	    !device->discipline->get_uid(device, &uid)) {  in dasd_uid_show()
1148 	dasd_put_device(device);  in dasd_uid_show()
1158 dasd_eer_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_eer_show()
1164 	if (!IS_ERR(devmap) && devmap->device)  in dasd_eer_show()
1165 		eer_flag = dasd_eer_enabled(devmap->device);  in dasd_eer_show()
1172 dasd_eer_store(struct device *dev, struct device_attribute *attr,  in dasd_eer_store()
1182 	if (!devmap->device)  in dasd_eer_store()
1190 		rc = dasd_eer_enable(devmap->device);  in dasd_eer_store()
1194 		dasd_eer_disable(devmap->device);  in dasd_eer_store()
1204 dasd_expires_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_expires_show()
1206 	struct dasd_device *device;  in dasd_expires_show()  local
1209 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_expires_show()
1210 	if (IS_ERR(device))  in dasd_expires_show()
1212 	len = snprintf(buf, PAGE_SIZE, "%lu\n", device->default_expires);  in dasd_expires_show()
1213 	dasd_put_device(device);  in dasd_expires_show()
1218 dasd_expires_store(struct device *dev, struct device_attribute *attr,  in dasd_expires_store()
1221 	struct dasd_device *device;  in dasd_expires_store()  local
1224 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_expires_store()
1225 	if (IS_ERR(device))  in dasd_expires_store()
1230 		dasd_put_device(device);  in dasd_expires_store()
1235 		device->default_expires = val;  in dasd_expires_store()
1237 	dasd_put_device(device);  in dasd_expires_store()
1243 static ssize_t dasd_reservation_policy_show(struct device *dev,  in dasd_reservation_policy_show()
1264 static ssize_t dasd_reservation_policy_store(struct device *dev,  in dasd_reservation_policy_store()
1282 	if (devmap->device)  in dasd_reservation_policy_store()
1283 		devmap->device->features = devmap->features;  in dasd_reservation_policy_store()
1294 static ssize_t dasd_reservation_state_show(struct device *dev,  in dasd_reservation_state_show()
1298 	struct dasd_device *device;  in dasd_reservation_state_show()  local
1301 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_reservation_state_show()
1302 	if (IS_ERR(device))  in dasd_reservation_state_show()
1305 	if (test_bit(DASD_FLAG_IS_RESERVED, &device->flags))  in dasd_reservation_state_show()
1307 	else if (test_bit(DASD_FLAG_LOCK_STOLEN, &device->flags))  in dasd_reservation_state_show()
1311 	dasd_put_device(device);  in dasd_reservation_state_show()
1315 static ssize_t dasd_reservation_state_store(struct device *dev,  in dasd_reservation_state_store()
1319 	struct dasd_device *device;  in dasd_reservation_state_store()  local
1322 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_reservation_state_store()
1323 	if (IS_ERR(device))  in dasd_reservation_state_store()
1326 		clear_bit(DASD_FLAG_LOCK_STOLEN, &device->flags);  in dasd_reservation_state_store()
1329 	dasd_put_device(device);  in dasd_reservation_state_store()
1396 	if (devmap->device)  in dasd_set_feature()
1397 		devmap->device->features = devmap->features;  in dasd_set_feature()