507 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_path_store()  local
511 	mutex_lock(&subsys->lock);  in nvmet_ns_device_path_store()
527 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
531 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
554 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
571 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
588 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_uuid_store()  local
591 	mutex_lock(&subsys->lock);  in nvmet_ns_device_uuid_store()
601 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_uuid_store()
616 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_nguid_store()  local
622 	mutex_lock(&subsys->lock);  in nvmet_ns_device_nguid_store()
647 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_nguid_store()
681 	nvmet_send_ana_event(ns->subsys, NULL);  in nvmet_ns_ana_grpid_store()
704 	 * window where it releases the subsys-lock, giving a chance to  in nvmet_ns_enable_store()
734 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
737 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
742 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
760 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
763 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
767 		nvmet_ns_changed(ns->subsys, ns->nsid);  in nvmet_ns_revalidate_size_store()
768 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
788 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_resv_enable_store()
791 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_resv_enable_store()
795 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_resv_enable_store()
835 	struct nvmet_subsys *subsys = namespaces_to_subsys(&group->cg_item);  in nvmet_ns_make()  local
851 	ns = nvmet_ns_alloc(subsys, nsid);  in nvmet_ns_make()
856 	pr_info("adding nsid %d to subsystem %s\n", nsid, subsys->subsysnqn);  in nvmet_ns_make()
877 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_show()  local
879 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_show()
885 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_store()  local
889 	mutex_lock(&subsys->lock);  in nvmet_passthru_device_path_store()
892 	if (subsys->passthru_ctrl)  in nvmet_passthru_device_path_store()
900 	kfree(subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_store()
902 	subsys->passthru_ctrl_path = kstrndup(page, len, GFP_KERNEL);  in nvmet_passthru_device_path_store()
903 	if (!subsys->passthru_ctrl_path)  in nvmet_passthru_device_path_store()
906 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
910 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
918 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_show()  local
920 	return sprintf(page, "%d\n", subsys->passthru_ctrl ? 1 : 0);  in nvmet_passthru_enable_show()
926 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_store()  local
934 		ret = nvmet_passthru_ctrl_enable(subsys);  in nvmet_passthru_enable_store()
936 		nvmet_passthru_ctrl_disable(subsys);  in nvmet_passthru_enable_store()
951 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_admin_timeout_store()  local
956 	subsys->admin_timeout = timeout;  in nvmet_passthru_admin_timeout_store()
970 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_io_timeout_store()  local
975 	subsys->io_timeout = timeout;  in nvmet_passthru_io_timeout_store()
989 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_clear_ids_store()  local
994 	subsys->clear_ids = clear_ids;  in nvmet_passthru_clear_ids_store()
1013 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
1015 	config_group_init_type_name(&subsys->passthru_group,  in nvmet_add_passthru_group()
1017 	configfs_add_default_group(&subsys->passthru_group,  in nvmet_add_passthru_group()
1018 				   &subsys->group);  in nvmet_add_passthru_group()
1023 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
1033 	struct nvmet_subsys *subsys;  in nvmet_port_subsys_allow_link()  local
1041 	subsys = to_subsys(target);  in nvmet_port_subsys_allow_link()
1045 	link->subsys = subsys;  in nvmet_port_subsys_allow_link()
1050 		if (p->subsys == subsys)  in nvmet_port_subsys_allow_link()
1061 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_allow_link()
1076 	struct nvmet_subsys *subsys = to_subsys(target);  in nvmet_port_subsys_drop_link()  local
1081 		if (p->subsys == subsys)  in nvmet_port_subsys_drop_link()
1089 	nvmet_port_del_ctrls(port, subsys);  in nvmet_port_subsys_drop_link()
1090 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_drop_link()
1111 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_allow_link()  local
1129 	if (subsys->allow_any_host) {  in nvmet_allowed_hosts_allow_link()
1135 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_allow_link()
1139 	list_add_tail(&link->entry, &subsys->hosts);  in nvmet_allowed_hosts_allow_link()
1140 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_allow_link()
1153 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_drop_link()  local
1158 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_drop_link()
1167 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_drop_link()
1193 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_allow_any_host_store()  local
1201 	if (allow_any_host && !list_empty(&subsys->hosts)) {  in nvmet_subsys_attr_allow_any_host_store()
1207 	if (subsys->allow_any_host != allow_any_host) {  in nvmet_subsys_attr_allow_any_host_store()
1208 		subsys->allow_any_host = allow_any_host;  in nvmet_subsys_attr_allow_any_host_store()
1209 		nvmet_subsys_disc_changed(subsys, NULL);  in nvmet_subsys_attr_allow_any_host_store()
1222 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_show()  local
1224 	if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_show()
1226 				NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1227 				NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1228 				NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_show()
1231 			NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1232 			NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_show()
1236 nvmet_subsys_attr_version_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_version_store_locked()  argument
1242 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_version_store_locked()
1243 		if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_store_locked()
1245 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1246 			       NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1247 			       NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1250 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1251 			       NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1256 	if (nvmet_is_passthru_subsys(subsys))  in nvmet_subsys_attr_version_store_locked()
1263 	subsys->ver = NVME_VS(major, minor, tertiary);  in nvmet_subsys_attr_version_store_locked()
1271 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_store()  local
1275 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1276 	ret = nvmet_subsys_attr_version_store_locked(subsys, page, count);  in nvmet_subsys_attr_version_store()
1277 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1293 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_show()  local
1296 			NVMET_SN_MAX_SIZE, subsys->serial);  in nvmet_subsys_attr_serial_show()
1300 nvmet_subsys_attr_serial_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_serial_store_locked()  argument
1305 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_serial_store_locked()
1307 		       subsys->serial);  in nvmet_subsys_attr_serial_store_locked()
1324 	memcpy_and_pad(subsys->serial, NVMET_SN_MAX_SIZE, page, len, ' ');  in nvmet_subsys_attr_serial_store_locked()
1332 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_store()  local
1336 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1337 	ret = nvmet_subsys_attr_serial_store_locked(subsys, page, count);  in nvmet_subsys_attr_serial_store()
1338 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1451 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_show()  local
1453 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->model_number);  in nvmet_subsys_attr_model_show()
1456 static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_model_store_locked()  argument
1462 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_model_store_locked()
1464 		       subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1486 	kfree(subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1487 	subsys->model_number = val;  in nvmet_subsys_attr_model_store_locked()
1494 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_store()  local
1498 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1499 	ret = nvmet_subsys_attr_model_store_locked(subsys, page, count);  in nvmet_subsys_attr_model_store()
1500 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1510 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_show()  local
1512 	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_show()
1515 static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_ieee_oui_store_locked()  argument
1521 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_ieee_oui_store_locked()
1523 		      subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_store_locked()
1534 	subsys->ieee_oui = val;  in nvmet_subsys_attr_ieee_oui_store_locked()
1542 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_store()  local
1546 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1547 	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);  in nvmet_subsys_attr_ieee_oui_store()
1548 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1558 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_show()  local
1560 	return sysfs_emit(page, "%s\n", subsys->firmware_rev);  in nvmet_subsys_attr_firmware_show()
1563 static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_firmware_store_locked()  argument
1569 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_firmware_store_locked()
1571 		       subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1594 	kfree(subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1596 	subsys->firmware_rev = val;  in nvmet_subsys_attr_firmware_store_locked()
1604 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_store()  local
1608 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1609 	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);  in nvmet_subsys_attr_firmware_store()
1610 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1627 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_pi_enable_store()  local
1633 	subsys->pi_support = pi_enable;  in nvmet_subsys_attr_pi_enable_store()
1648 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_qid_max_store()  local
1659 	subsys->max_qid = qid_max;  in nvmet_subsys_attr_qid_max_store()
1662 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)  in nvmet_subsys_attr_qid_max_store()
1693 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_release()  local
1695 	nvmet_subsys_del_ctrls(subsys);  in nvmet_subsys_release()
1696 	nvmet_subsys_put(subsys);  in nvmet_subsys_release()
1712 	struct nvmet_subsys *subsys;  in nvmet_subsys_make()  local
1724 	subsys = nvmet_subsys_alloc(name, NVME_NQN_NVME);  in nvmet_subsys_make()
1725 	if (IS_ERR(subsys))  in nvmet_subsys_make()
1726 		return ERR_CAST(subsys);  in nvmet_subsys_make()
1728 	config_group_init_type_name(&subsys->group, name, &nvmet_subsys_type);  in nvmet_subsys_make()
1730 	config_group_init_type_name(&subsys->namespaces_group,  in nvmet_subsys_make()
1732 	configfs_add_default_group(&subsys->namespaces_group, &subsys->group);  in nvmet_subsys_make()
1734 	config_group_init_type_name(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1736 	configfs_add_default_group(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1737 			&subsys->group);  in nvmet_subsys_make()
1739 	nvmet_add_passthru_group(subsys);  in nvmet_subsys_make()
1741 	return &subsys->group;  in nvmet_subsys_make()