49 	struct dasd_device *device;  member
431 		new->device = NULL;  in dasd_add_busid()
494 			BUG_ON(devmap->device != NULL);  in dasd_forget_ranges()
509 	struct dasd_device *device;  in dasd_device_from_devindex()  local
521 	if (devmap && devmap->device) {  in dasd_device_from_devindex()
522 		device = devmap->device;  in dasd_device_from_devindex()
523 		dasd_get_device(device);  in dasd_device_from_devindex()
525 		device = ERR_PTR(-ENODEV);  in dasd_device_from_devindex()
527 	return device;  in dasd_device_from_devindex()
553 	struct dasd_device *device;  in dasd_create_device()  local
561 	device = dasd_alloc_device();  in dasd_create_device()
562 	if (IS_ERR(device))  in dasd_create_device()
563 		return device;  in dasd_create_device()
564 	atomic_set(&device->ref_count, 3);  in dasd_create_device()
567 	if (!devmap->device) {  in dasd_create_device()
568 		devmap->device = device;  in dasd_create_device()
569 		device->devindex = devmap->devindex;  in dasd_create_device()
570 		device->features = devmap->features;  in dasd_create_device()
572 		device->cdev = cdev;  in dasd_create_device()
580 		dasd_free_device(device);  in dasd_create_device()
585 	dev_set_drvdata(&cdev->dev, device);  in dasd_create_device()
588 	device->paths_info = kset_create_and_add("paths_info", NULL,  in dasd_create_device()
589 						 &device->cdev->dev.kobj);  in dasd_create_device()
590 	if (!device->paths_info)  in dasd_create_device()
593 	return device;  in dasd_create_device()
599 static int dasd_devmap_get_pprc_status(struct dasd_device *device,  in dasd_devmap_get_pprc_status()  argument
604 	if (!device->discipline || !device->discipline->pprc_status) {  in dasd_devmap_get_pprc_status()
605 		dev_warn(&device->cdev->dev, "Unable to query copy relation status\n");  in dasd_devmap_get_pprc_status()
613 	if (device->discipline->pprc_status(device, temp)) {  in dasd_devmap_get_pprc_status()
614 		dev_warn(&device->cdev->dev, "Error during copy relation status query\n");  in dasd_devmap_get_pprc_status()
658 static int dasd_devmap_check_copy_relation(struct dasd_device *device,  in dasd_devmap_check_copy_relation()  argument
668 	if (!device->discipline || !device->discipline->get_uid ||  in dasd_devmap_check_copy_relation()
669 	    device->discipline->get_uid(device, &uid))  in dasd_devmap_check_copy_relation()
674 		dev_warn(&device->cdev->dev, "Device not part of a copy relation\n");  in dasd_devmap_check_copy_relation()
681 			dev_warn(&device->cdev->dev, "Copy pair secondary is setup as primary\n");  in dasd_devmap_check_copy_relation()
686 			dev_warn(&device->cdev->dev,  in dasd_devmap_check_copy_relation()
688 				 dev_name(&device->cdev->dev),  in dasd_devmap_check_copy_relation()
695 			dev_warn(&device->cdev->dev, "Copy pair primary is setup as secondary\n");  in dasd_devmap_check_copy_relation()
700 			dev_warn(&device->cdev->dev,  in dasd_devmap_check_copy_relation()
702 				 dev_name(&device->cdev->dev),  in dasd_devmap_check_copy_relation()
715 			tmp_dev = device;  in dasd_devmap_check_copy_relation()
717 			tmp_dev = copy->entry[j].device;  in dasd_devmap_check_copy_relation()
728 				 dev_name(&device->cdev->dev));  in dasd_devmap_check_copy_relation()
738 static void dasd_devmap_delete_copy_relation_device(struct dasd_device *device)  in dasd_devmap_delete_copy_relation_device()  argument
743 	if (!device->copy)  in dasd_devmap_delete_copy_relation_device()
746 	copy = device->copy;  in dasd_devmap_delete_copy_relation_device()
748 		if (copy->entry[i].device == device)  in dasd_devmap_delete_copy_relation_device()
749 			copy->entry[i].device = NULL;  in dasd_devmap_delete_copy_relation_device()
751 	dasd_put_device(device);  in dasd_devmap_delete_copy_relation_device()
752 	device->copy = NULL;  in dasd_devmap_delete_copy_relation_device()
766 	struct dasd_device *device;  in dasd_devmap_set_device_copy_relation()  local
773 	device = devmap->device;  in dasd_devmap_set_device_copy_relation()
774 	if (!device)  in dasd_devmap_set_device_copy_relation()
782 	rc = dasd_devmap_get_pprc_status(device, &data);  in dasd_devmap_set_device_copy_relation()
794 		dev_warn(&device->cdev->dev, "Copy pair setup requested for device not in copy relation\n");  in dasd_devmap_set_device_copy_relation()
808 		dev_warn(&device->cdev->dev, "Copy relation entry not found\n");  in dasd_devmap_set_device_copy_relation()
813 	if (dasd_devmap_check_copy_relation(device, entry, data, copy)) {  in dasd_devmap_set_device_copy_relation()
814 		dev_warn(&device->cdev->dev, "Copy relation faulty\n");  in dasd_devmap_set_device_copy_relation()
819 	dasd_get_device(device);  in dasd_devmap_set_device_copy_relation()
820 	copy->entry[i].device = device;  in dasd_devmap_set_device_copy_relation()
821 	device->copy = copy;  in dasd_devmap_set_device_copy_relation()
838 dasd_delete_device(struct dasd_device *device)  in dasd_delete_device()  argument
845 	devmap = dasd_find_busid(dev_name(&device->cdev->dev));  in dasd_delete_device()
848 	if (devmap->device != device) {  in dasd_delete_device()
850 		dasd_put_device(device);  in dasd_delete_device()
853 	devmap->device = NULL;  in dasd_delete_device()
857 	spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);  in dasd_delete_device()
858 	dev_set_drvdata(&device->cdev->dev, NULL);  in dasd_delete_device()
859 	spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);  in dasd_delete_device()
862 	dasd_devmap_delete_copy_relation_device(device);  in dasd_delete_device()
867 	atomic_sub(3, &device->ref_count);  in dasd_delete_device()
870 	wait_event(dasd_delete_wq, atomic_read(&device->ref_count) == 0);  in dasd_delete_device()
872 	dasd_generic_free_discipline(device);  in dasd_delete_device()
874 	kset_unregister(device->paths_info);  in dasd_delete_device()
877 	cdev = device->cdev;  in dasd_delete_device()
878 	device->cdev = NULL;  in dasd_delete_device()
884 	dasd_free_device(device);  in dasd_delete_device()
892 dasd_put_device_wake(struct dasd_device *device)  in dasd_put_device_wake()  argument
906 	struct dasd_device *device = dev_get_drvdata(&cdev->dev);  in dasd_device_from_cdev_locked()  local
908 	if (!device)  in dasd_device_from_cdev_locked()
910 	dasd_get_device(device);  in dasd_device_from_cdev_locked()
911 	return device;  in dasd_device_from_cdev_locked()
920 	struct dasd_device *device;  in dasd_device_from_cdev()  local
924 	device = dasd_device_from_cdev_locked(cdev);  in dasd_device_from_cdev()
926 	return device;  in dasd_device_from_cdev()
929 void dasd_add_link_to_gendisk(struct gendisk *gdp, struct dasd_device *device)  in dasd_add_link_to_gendisk()  argument
933 	devmap = dasd_find_busid(dev_name(&device->cdev->dev));  in dasd_add_link_to_gendisk()
944 	struct dasd_device *device;  in dasd_device_from_gendisk()  local
949 	device = NULL;  in dasd_device_from_gendisk()
952 	if (devmap && devmap->device) {  in dasd_device_from_gendisk()
953 		device = devmap->device;  in dasd_device_from_gendisk()
954 		dasd_get_device(device);  in dasd_device_from_gendisk()
957 	return device;  in dasd_device_from_gendisk()
967 static ssize_t dasd_ff_show(struct device *dev, struct device_attribute *attr,  in dasd_ff_show()
981 static ssize_t dasd_ff_store(struct device *dev, struct device_attribute *attr,  in dasd_ff_store()
1001 dasd_ro_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_ro_show()
1004 	struct dasd_device *device;  in dasd_ro_show()  local
1014 	device = devmap->device;  in dasd_ro_show()
1015 	if (device)  in dasd_ro_show()
1016 		ro_flag |= test_bit(DASD_FLAG_DEVICE_RO, &device->flags);  in dasd_ro_show()
1024 dasd_ro_store(struct device *dev, struct device_attribute *attr,  in dasd_ro_store()
1028 	struct dasd_device *device;  in dasd_ro_store()  local
1040 	device = dasd_device_from_cdev(cdev);  in dasd_ro_store()
1041 	if (IS_ERR(device))  in dasd_ro_store()
1045 	val = val || test_bit(DASD_FLAG_DEVICE_RO, &device->flags);  in dasd_ro_store()
1047 	if (!device->block || !device->block->gdp ||  in dasd_ro_store()
1048 	    test_bit(DASD_FLAG_OFFLINE, &device->flags)) {  in dasd_ro_store()
1053 	atomic_inc(&device->block->open_count);  in dasd_ro_store()
1056 	set_disk_ro(device->block->gdp, val);  in dasd_ro_store()
1057 	atomic_dec(&device->block->open_count);  in dasd_ro_store()
1060 	dasd_put_device(device);  in dasd_ro_store()
1071 dasd_erplog_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_erplog_show()
1085 dasd_erplog_store(struct device *dev, struct device_attribute *attr,  in dasd_erplog_store()
1106 dasd_use_diag_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_use_diag_show()
1120 dasd_use_diag_store(struct device *dev, struct device_attribute *attr,  in dasd_use_diag_store()
1137 	if (!devmap->device && !(devmap->features & DASD_FEATURE_USERAW)) {  in dasd_use_diag_store()
1155 dasd_use_raw_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_use_raw_show()
1169 dasd_use_raw_store(struct device *dev, struct device_attribute *attr,  in dasd_use_raw_store()
1186 	if (!devmap->device && !(devmap->features & DASD_FEATURE_USEDIAG)) {  in dasd_use_raw_store()
1201 dasd_safe_offline_store(struct device *dev, struct device_attribute *attr,  in dasd_safe_offline_store()
1205 	struct dasd_device *device;  in dasd_safe_offline_store()  local
1210 	device = dasd_device_from_cdev_locked(cdev);  in dasd_safe_offline_store()
1211 	if (IS_ERR(device)) {  in dasd_safe_offline_store()
1212 		rc = PTR_ERR(device);  in dasd_safe_offline_store()
1217 	if (test_bit(DASD_FLAG_OFFLINE, &device->flags) ||  in dasd_safe_offline_store()
1218 	    test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {  in dasd_safe_offline_store()
1220 		dasd_put_device(device);  in dasd_safe_offline_store()
1226 	set_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags);  in dasd_safe_offline_store()
1227 	dasd_put_device(device);  in dasd_safe_offline_store()
1239 dasd_access_show(struct device *dev, struct device_attribute *attr,  in dasd_access_show()
1243 	struct dasd_device *device;  in dasd_access_show()  local
1246 	device = dasd_device_from_cdev(cdev);  in dasd_access_show()
1247 	if (IS_ERR(device))  in dasd_access_show()
1248 		return PTR_ERR(device);  in dasd_access_show()
1250 	if (!device->discipline)  in dasd_access_show()
1252 	else if (!device->discipline->host_access_count)  in dasd_access_show()
1255 		count = device->discipline->host_access_count(device);  in dasd_access_show()
1257 	dasd_put_device(device);  in dasd_access_show()
1267 dasd_discipline_show(struct device *dev, struct device_attribute *attr,  in dasd_discipline_show()
1270 	struct dasd_device *device;  in dasd_discipline_show()  local
1273 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_discipline_show()
1274 	if (IS_ERR(device))  in dasd_discipline_show()
1276 	else if (!device->discipline) {  in dasd_discipline_show()
1277 		dasd_put_device(device);  in dasd_discipline_show()
1281 				 device->discipline->name);  in dasd_discipline_show()
1282 		dasd_put_device(device);  in dasd_discipline_show()
1293 dasd_device_status_show(struct device *dev, struct device_attribute *attr,  in dasd_device_status_show()
1296 	struct dasd_device *device;  in dasd_device_status_show()  local
1299 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_device_status_show()
1300 	if (!IS_ERR(device)) {  in dasd_device_status_show()
1301 		switch (device->state) {  in dasd_device_status_show()
1324 		dasd_put_device(device);  in dasd_device_status_show()
1332 static ssize_t dasd_alias_show(struct device *dev,  in dasd_alias_show()
1335 	struct dasd_device *device;  in dasd_alias_show()  local
1338 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_alias_show()
1339 	if (IS_ERR(device))  in dasd_alias_show()
1342 	if (device->discipline && device->discipline->get_uid &&  in dasd_alias_show()
1343 	    !device->discipline->get_uid(device, &uid)) {  in dasd_alias_show()
1346 			dasd_put_device(device);  in dasd_alias_show()
1350 	dasd_put_device(device);  in dasd_alias_show()
1357 static ssize_t dasd_vendor_show(struct device *dev,  in dasd_vendor_show()
1360 	struct dasd_device *device;  in dasd_vendor_show()  local
1364 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_vendor_show()
1366 	if (IS_ERR(device))  in dasd_vendor_show()
1369 	if (device->discipline && device->discipline->get_uid &&  in dasd_vendor_show()
1370 	    !device->discipline->get_uid(device, &uid))  in dasd_vendor_show()
1373 	dasd_put_device(device);  in dasd_vendor_show()
1381 dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_uid_show()
1384 	struct dasd_device *device;  in dasd_uid_show()  local
1388 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_uid_show()
1390 	if (IS_ERR(device))  in dasd_uid_show()
1393 	if (device->discipline && device->discipline->get_uid &&  in dasd_uid_show()
1394 	    !device->discipline->get_uid(device, &uid)) {  in dasd_uid_show()
1418 	dasd_put_device(device);  in dasd_uid_show()
1428 dasd_eer_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_eer_show()
1434 	if (!IS_ERR(devmap) && devmap->device)  in dasd_eer_show()
1435 		eer_flag = dasd_eer_enabled(devmap->device);  in dasd_eer_show()
1442 dasd_eer_store(struct device *dev, struct device_attribute *attr,  in dasd_eer_store()
1445 	struct dasd_device *device;  in dasd_eer_store()  local
1449 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_eer_store()
1450 	if (IS_ERR(device))  in dasd_eer_store()
1451 		return PTR_ERR(device);  in dasd_eer_store()
1457 		rc = dasd_eer_enable(device);  in dasd_eer_store()
1459 		dasd_eer_disable(device);  in dasd_eer_store()
1461 	dasd_put_device(device);  in dasd_eer_store()
1472 static ssize_t dasd_aq_mask_show(struct device *dev, struct device_attribute *attr,  in dasd_aq_mask_show()
1485 static ssize_t dasd_aq_mask_store(struct device *dev, struct device_attribute *attr,  in dasd_aq_mask_store()
1500 	if (devmap->device)  in dasd_aq_mask_store()
1501 		devmap->device->aq_mask = devmap->aq_mask;  in dasd_aq_mask_store()
1513 static ssize_t dasd_aqr_show(struct device *dev, struct device_attribute *attr,  in dasd_aqr_show()
1528 static ssize_t dasd_aqr_store(struct device *dev, struct device_attribute *attr,  in dasd_aqr_store()
1549 dasd_aq_timeouts_show(struct device *dev, struct device_attribute *attr,  in dasd_aq_timeouts_show()
1552 	struct dasd_device *device;  in dasd_aq_timeouts_show()  local
1555 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_aq_timeouts_show()
1556 	if (IS_ERR(device))  in dasd_aq_timeouts_show()
1558 	len = sysfs_emit(buf, "%u\n", device->aq_timeouts);  in dasd_aq_timeouts_show()
1559 	dasd_put_device(device);  in dasd_aq_timeouts_show()
1564 dasd_aq_timeouts_store(struct device *dev, struct device_attribute *attr,  in dasd_aq_timeouts_store()
1567 	struct dasd_device *device;  in dasd_aq_timeouts_store()  local
1570 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_aq_timeouts_store()
1571 	if (IS_ERR(device))  in dasd_aq_timeouts_store()
1576 		dasd_put_device(device);  in dasd_aq_timeouts_store()
1581 		device->aq_timeouts = val;  in dasd_aq_timeouts_store()
1583 	dasd_put_device(device);  in dasd_aq_timeouts_store()
1594 dasd_expires_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_expires_show()
1596 	struct dasd_device *device;  in dasd_expires_show()  local
1599 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_expires_show()
1600 	if (IS_ERR(device))  in dasd_expires_show()
1602 	len = sysfs_emit(buf, "%lu\n", device->default_expires);  in dasd_expires_show()
1603 	dasd_put_device(device);  in dasd_expires_show()
1608 dasd_expires_store(struct device *dev, struct device_attribute *attr,  in dasd_expires_store()
1611 	struct dasd_device *device;  in dasd_expires_store()  local
1614 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_expires_store()
1615 	if (IS_ERR(device))  in dasd_expires_store()
1620 		dasd_put_device(device);  in dasd_expires_store()
1625 		device->default_expires = val;  in dasd_expires_store()
1627 	dasd_put_device(device);  in dasd_expires_store()
1634 dasd_retries_show(struct device *dev, struct device_attribute *attr, char *buf)  in dasd_retries_show()
1636 	struct dasd_device *device;  in dasd_retries_show()  local
1639 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_retries_show()
1640 	if (IS_ERR(device))  in dasd_retries_show()
1642 	len = sysfs_emit(buf, "%lu\n", device->default_retries);  in dasd_retries_show()
1643 	dasd_put_device(device);  in dasd_retries_show()
1648 dasd_retries_store(struct device *dev, struct device_attribute *attr,  in dasd_retries_store()
1651 	struct dasd_device *device;  in dasd_retries_store()  local
1654 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_retries_store()
1655 	if (IS_ERR(device))  in dasd_retries_store()
1660 		dasd_put_device(device);  in dasd_retries_store()
1665 		device->default_retries = val;  in dasd_retries_store()
1667 	dasd_put_device(device);  in dasd_retries_store()
1674 dasd_timeout_show(struct device *dev, struct device_attribute *attr,  in dasd_timeout_show()
1677 	struct dasd_device *device;  in dasd_timeout_show()  local
1680 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_timeout_show()
1681 	if (IS_ERR(device))  in dasd_timeout_show()
1683 	len = sysfs_emit(buf, "%lu\n", device->blk_timeout);  in dasd_timeout_show()
1684 	dasd_put_device(device);  in dasd_timeout_show()
1689 dasd_timeout_store(struct device *dev, struct device_attribute *attr,  in dasd_timeout_store()
1692 	struct dasd_device *device;  in dasd_timeout_store()  local
1695 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_timeout_store()
1696 	if (IS_ERR(device) || !device->block)  in dasd_timeout_store()
1701 		dasd_put_device(device);  in dasd_timeout_store()
1704 	if (!device->block->gdp) {  in dasd_timeout_store()
1705 		dasd_put_device(device);  in dasd_timeout_store()
1709 	device->blk_timeout = val;  in dasd_timeout_store()
1710 	blk_queue_rq_timeout(device->block->gdp->queue, val * HZ);  in dasd_timeout_store()
1712 	dasd_put_device(device);  in dasd_timeout_store()
1721 dasd_path_reset_store(struct device *dev, struct device_attribute *attr,  in dasd_path_reset_store()
1724 	struct dasd_device *device;  in dasd_path_reset_store()  local
1727 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_path_reset_store()
1728 	if (IS_ERR(device))  in dasd_path_reset_store()
1734 	if (device->discipline && device->discipline->reset_path)  in dasd_path_reset_store()
1735 		device->discipline->reset_path(device, (__u8) val);  in dasd_path_reset_store()
1737 	dasd_put_device(device);  in dasd_path_reset_store()
1743 static ssize_t dasd_hpf_show(struct device *dev, struct device_attribute *attr,  in dasd_hpf_show()
1746 	struct dasd_device *device;  in dasd_hpf_show()  local
1749 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_hpf_show()
1750 	if (IS_ERR(device))  in dasd_hpf_show()
1752 	if (!device->discipline || !device->discipline->hpf_enabled) {  in dasd_hpf_show()
1753 		dasd_put_device(device);  in dasd_hpf_show()
1756 	hpf = device->discipline->hpf_enabled(device);  in dasd_hpf_show()
1757 	dasd_put_device(device);  in dasd_hpf_show()
1763 static ssize_t dasd_reservation_policy_show(struct device *dev,  in dasd_reservation_policy_show()
1784 static ssize_t dasd_reservation_policy_store(struct device *dev,  in dasd_reservation_policy_store()
1804 static ssize_t dasd_reservation_state_show(struct device *dev,  in dasd_reservation_state_show()
1808 	struct dasd_device *device;  in dasd_reservation_state_show()  local
1811 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_reservation_state_show()
1812 	if (IS_ERR(device))  in dasd_reservation_state_show()
1815 	if (test_bit(DASD_FLAG_IS_RESERVED, &device->flags))  in dasd_reservation_state_show()
1817 	else if (test_bit(DASD_FLAG_LOCK_STOLEN, &device->flags))  in dasd_reservation_state_show()
1821 	dasd_put_device(device);  in dasd_reservation_state_show()
1825 static ssize_t dasd_reservation_state_store(struct device *dev,  in dasd_reservation_state_store()
1829 	struct dasd_device *device;  in dasd_reservation_state_store()  local
1832 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_reservation_state_store()
1833 	if (IS_ERR(device))  in dasd_reservation_state_store()
1836 		clear_bit(DASD_FLAG_LOCK_STOLEN, &device->flags);  in dasd_reservation_state_store()
1839 	dasd_put_device(device);  in dasd_reservation_state_store()
1850 static ssize_t dasd_pm_show(struct device *dev,  in dasd_pm_show()
1853 	struct dasd_device *device;  in dasd_pm_show()  local
1856 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_pm_show()
1857 	if (IS_ERR(device))  in dasd_pm_show()
1860 	opm = dasd_path_get_opm(device);  in dasd_pm_show()
1861 	nppm = dasd_path_get_nppm(device);  in dasd_pm_show()
1862 	cablepm = dasd_path_get_cablepm(device);  in dasd_pm_show()
1863 	cuirpm = dasd_path_get_cuirpm(device);  in dasd_pm_show()
1864 	hpfpm = dasd_path_get_hpfpm(device);  in dasd_pm_show()
1865 	ifccpm = dasd_path_get_ifccpm(device);  in dasd_pm_show()
1866 	dasd_put_device(device);  in dasd_pm_show()
1878 dasd_path_threshold_show(struct device *dev,  in dasd_path_threshold_show()
1881 	struct dasd_device *device;  in dasd_path_threshold_show()  local
1884 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_path_threshold_show()
1885 	if (IS_ERR(device))  in dasd_path_threshold_show()
1887 	len = sysfs_emit(buf, "%lu\n", device->path_thrhld);  in dasd_path_threshold_show()
1888 	dasd_put_device(device);  in dasd_path_threshold_show()
1893 dasd_path_threshold_store(struct device *dev, struct device_attribute *attr,  in dasd_path_threshold_store()
1896 	struct dasd_device *device;  in dasd_path_threshold_store()  local
1900 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_path_threshold_store()
1901 	if (IS_ERR(device))  in dasd_path_threshold_store()
1905 		dasd_put_device(device);  in dasd_path_threshold_store()
1909 	device->path_thrhld = val;  in dasd_path_threshold_store()
1911 	dasd_put_device(device);  in dasd_path_threshold_store()
1922 dasd_path_autodisable_show(struct device *dev,  in dasd_path_autodisable_show()
1938 dasd_path_autodisable_store(struct device *dev,  in dasd_path_autodisable_store()
1963 dasd_path_interval_show(struct device *dev,  in dasd_path_interval_show()
1966 	struct dasd_device *device;  in dasd_path_interval_show()  local
1969 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_path_interval_show()
1970 	if (IS_ERR(device))  in dasd_path_interval_show()
1972 	len = sysfs_emit(buf, "%lu\n", device->path_interval);  in dasd_path_interval_show()
1973 	dasd_put_device(device);  in dasd_path_interval_show()
1978 dasd_path_interval_store(struct device *dev, struct device_attribute *attr,  in dasd_path_interval_store()
1981 	struct dasd_device *device;  in dasd_path_interval_store()  local
1985 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_path_interval_store()
1986 	if (IS_ERR(device))  in dasd_path_interval_store()
1991 		dasd_put_device(device);  in dasd_path_interval_store()
1996 		device->path_interval = val;  in dasd_path_interval_store()
1998 	dasd_put_device(device);  in dasd_path_interval_store()
2006 dasd_device_fcs_show(struct device *dev, struct device_attribute *attr,  in dasd_device_fcs_show()
2009 	struct dasd_device *device;  in dasd_device_fcs_show()  local
2013 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_device_fcs_show()
2014 	if (IS_ERR(device))  in dasd_device_fcs_show()
2016 	fc_sec = dasd_path_get_fcs_device(device);  in dasd_device_fcs_show()
2021 	dasd_put_device(device);  in dasd_device_fcs_show()
2044 dasd_copy_pair_show(struct device *dev,  in dasd_copy_pair_show()
2141 static int dasd_devmap_clear_copy_relation(struct device *dev)  in dasd_devmap_clear_copy_relation()
2161 		if (copy->entry[i].device == copy->active->device)  in dasd_devmap_clear_copy_relation()
2164 		if (copy->entry[i].device)  in dasd_devmap_clear_copy_relation()
2171 		if (copy->entry[i].device) {  in dasd_devmap_clear_copy_relation()
2172 			dasd_put_device(copy->entry[i].device);  in dasd_devmap_clear_copy_relation()
2173 			copy->entry[i].device->copy = NULL;  in dasd_devmap_clear_copy_relation()
2174 			copy->entry[i].device = NULL;  in dasd_devmap_clear_copy_relation()
2226 static ssize_t dasd_copy_pair_store(struct device *dev,  in dasd_copy_pair_store()
2234 	struct dasd_device *device;  in dasd_copy_pair_store()  local
2269 	if (sec_devmap->device)  in dasd_copy_pair_store()
2295 	if (prim_devmap->device && !prim_devmap->device->copy) {  in dasd_copy_pair_store()
2296 		device = prim_devmap->device;  in dasd_copy_pair_store()
2297 		if (device->discipline->pprc_enabled) {  in dasd_copy_pair_store()
2298 			pprc_enabled = device->discipline->pprc_enabled(device);  in dasd_copy_pair_store()
2299 			rc = dasd_devmap_set_device_copy_relation(device->cdev,  in dasd_copy_pair_store()
2317 dasd_copy_role_show(struct device *dev,  in dasd_copy_role_show()
2321 	struct dasd_device *device;  in dasd_copy_role_show()  local
2324 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_copy_role_show()
2325 	if (IS_ERR(device))  in dasd_copy_role_show()
2328 	if (!device->copy) {  in dasd_copy_role_show()
2332 	copy = device->copy;  in dasd_copy_role_show()
2334 	if (copy->active->device == device) {  in dasd_copy_role_show()
2339 		if (copy->entry[i].device == device) {  in dasd_copy_role_show()
2347 	dasd_put_device(device);  in dasd_copy_role_show()
2352 static ssize_t dasd_device_ping(struct device *dev,  in dasd_device_ping()
2356 	struct dasd_device *device;  in dasd_device_ping()  local
2359 	device = dasd_device_from_cdev(to_ccwdev(dev));  in dasd_device_ping()
2360 	if (IS_ERR(device))  in dasd_device_ping()
2369 	if (test_bit(DASD_FLAG_OFFLINE, &device->flags)) {  in dasd_device_ping()
2373 	if (!device->discipline || !device->discipline->device_ping) {  in dasd_device_ping()
2377 	rc = device->discipline->device_ping(device);  in dasd_device_ping()
2381 	dasd_put_device(device);  in dasd_device_ping()
2387 static ssize_t dasd_##_name##_show(struct device *dev,			\
2392 	struct dasd_device *device = dasd_device_from_cdev(cdev);	\
2395 	if (IS_ERR(device))						\
2397 	if (device->discipline && _func)				\
2398 		val = _func(device);					\
2399 	dasd_put_device(device);					\
2405 DASD_DEFINE_ATTR(ese, device->discipline->is_ese);
2406 DASD_DEFINE_ATTR(extent_size, device->discipline->ext_size);
2407 DASD_DEFINE_ATTR(pool_id, device->discipline->ext_pool_id);
2408 DASD_DEFINE_ATTR(space_configured, device->discipline->space_configured);
2409 DASD_DEFINE_ATTR(space_allocated, device->discipline->space_allocated);
2410 DASD_DEFINE_ATTR(logical_capacity, device->discipline->logical_capacity);
2411 DASD_DEFINE_ATTR(warn_threshold, device->discipline->ext_pool_warn_thrshld);
2412 DASD_DEFINE_ATTR(cap_at_warnlevel, device->discipline->ext_pool_cap_at_warnlevel);
2413 DASD_DEFINE_ATTR(pool_oos, device->discipline->ext_pool_oos);
2522 	if (devmap->device)  in dasd_set_feature()
2523 		devmap->device->features = devmap->features;  in dasd_set_feature()
2541 static void dasd_path_init_kobj(struct dasd_device *device, int chp)  in dasd_path_init_kobj()  argument
2543 	device->path[chp].kobj.kset = device->paths_info;  in dasd_path_init_kobj()
2544 	kobject_init(&device->path[chp].kobj, &path_attr_type);  in dasd_path_init_kobj()
2547 void dasd_path_create_kobj(struct dasd_device *device, int chp)  in dasd_path_create_kobj()  argument
2551 	if (test_bit(DASD_FLAG_OFFLINE, &device->flags))  in dasd_path_create_kobj()
2553 	if (!device->paths_info) {  in dasd_path_create_kobj()
2554 		dev_warn(&device->cdev->dev, "Unable to create paths objects\n");  in dasd_path_create_kobj()
2557 	if (device->path[chp].in_sysfs)  in dasd_path_create_kobj()
2559 	if (!device->path[chp].conf_data)  in dasd_path_create_kobj()
2562 	dasd_path_init_kobj(device, chp);  in dasd_path_create_kobj()
2564 	rc = kobject_add(&device->path[chp].kobj, NULL, "%x.%02x",  in dasd_path_create_kobj()
2565 			 device->path[chp].cssid, device->path[chp].chpid);  in dasd_path_create_kobj()
2567 		kobject_put(&device->path[chp].kobj);  in dasd_path_create_kobj()
2568 	device->path[chp].in_sysfs = true;  in dasd_path_create_kobj()
2572 void dasd_path_create_kobjects(struct dasd_device *device)  in dasd_path_create_kobjects()  argument
2576 	opm = dasd_path_get_opm(device);  in dasd_path_create_kobjects()
2580 		dasd_path_create_kobj(device, pathmask_to_pos(lpm));  in dasd_path_create_kobjects()
2585 static void dasd_path_remove_kobj(struct dasd_device *device, int chp)  in dasd_path_remove_kobj()  argument
2587 	if (device->path[chp].in_sysfs) {  in dasd_path_remove_kobj()
2588 		kobject_put(&device->path[chp].kobj);  in dasd_path_remove_kobj()
2589 		device->path[chp].in_sysfs = false;  in dasd_path_remove_kobj()
2597 void dasd_path_remove_kobjects(struct dasd_device *device)  in dasd_path_remove_kobjects()  argument
2602 		dasd_path_remove_kobj(device, i);  in dasd_path_remove_kobjects()