505 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_path_store()  local
509 	mutex_lock(&subsys->lock);  in nvmet_ns_device_path_store()
525 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
529 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
552 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
569 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
586 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_uuid_store()  local
589 	mutex_lock(&subsys->lock);  in nvmet_ns_device_uuid_store()
599 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_uuid_store()
614 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_nguid_store()  local
620 	mutex_lock(&subsys->lock);  in nvmet_ns_device_nguid_store()
645 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_nguid_store()
679 	nvmet_send_ana_event(ns->subsys, NULL);  in nvmet_ns_ana_grpid_store()
702 	 * window where it releases the subsys-lock, giving a chance to  in nvmet_ns_enable_store()
732 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
735 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
740 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
758 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
761 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
765 		nvmet_ns_changed(ns->subsys, ns->nsid);  in nvmet_ns_revalidate_size_store()
766 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
786 bool nvmet_subsys_nsid_exists(struct nvmet_subsys *subsys, u32 nsid)  in nvmet_subsys_nsid_exists()  argument
792 	mutex_lock(&subsys->namespaces_group.cg_subsys->su_mutex);  in nvmet_subsys_nsid_exists()
793 	ns_item = config_group_find_item(&subsys->namespaces_group, name);  in nvmet_subsys_nsid_exists()
794 	mutex_unlock(&subsys->namespaces_group.cg_subsys->su_mutex);  in nvmet_subsys_nsid_exists()
818 	struct nvmet_subsys *subsys = namespaces_to_subsys(&group->cg_item);  in nvmet_ns_make()  local
834 	ns = nvmet_ns_alloc(subsys, nsid);  in nvmet_ns_make()
839 	pr_info("adding nsid %d to subsystem %s\n", nsid, subsys->subsysnqn);  in nvmet_ns_make()
860 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_show()  local
862 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_show()
868 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_store()  local
872 	mutex_lock(&subsys->lock);  in nvmet_passthru_device_path_store()
875 	if (subsys->passthru_ctrl)  in nvmet_passthru_device_path_store()
883 	kfree(subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_store()
885 	subsys->passthru_ctrl_path = kstrndup(page, len, GFP_KERNEL);  in nvmet_passthru_device_path_store()
886 	if (!subsys->passthru_ctrl_path)  in nvmet_passthru_device_path_store()
889 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
893 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
901 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_show()  local
903 	return sprintf(page, "%d\n", subsys->passthru_ctrl ? 1 : 0);  in nvmet_passthru_enable_show()
909 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_store()  local
917 		ret = nvmet_passthru_ctrl_enable(subsys);  in nvmet_passthru_enable_store()
919 		nvmet_passthru_ctrl_disable(subsys);  in nvmet_passthru_enable_store()
934 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_admin_timeout_store()  local
939 	subsys->admin_timeout = timeout;  in nvmet_passthru_admin_timeout_store()
953 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_io_timeout_store()  local
958 	subsys->io_timeout = timeout;  in nvmet_passthru_io_timeout_store()
972 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_clear_ids_store()  local
977 	subsys->clear_ids = clear_ids;  in nvmet_passthru_clear_ids_store()
996 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
998 	config_group_init_type_name(&subsys->passthru_group,  in nvmet_add_passthru_group()
1000 	configfs_add_default_group(&subsys->passthru_group,  in nvmet_add_passthru_group()
1001 				   &subsys->group);  in nvmet_add_passthru_group()
1006 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
1016 	struct nvmet_subsys *subsys;  in nvmet_port_subsys_allow_link()  local
1024 	subsys = to_subsys(target);  in nvmet_port_subsys_allow_link()
1028 	link->subsys = subsys;  in nvmet_port_subsys_allow_link()
1033 		if (p->subsys == subsys)  in nvmet_port_subsys_allow_link()
1044 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_allow_link()
1059 	struct nvmet_subsys *subsys = to_subsys(target);  in nvmet_port_subsys_drop_link()  local
1064 		if (p->subsys == subsys)  in nvmet_port_subsys_drop_link()
1072 	nvmet_port_del_ctrls(port, subsys);  in nvmet_port_subsys_drop_link()
1073 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_drop_link()
1094 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_allow_link()  local
1112 	if (subsys->allow_any_host) {  in nvmet_allowed_hosts_allow_link()
1118 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_allow_link()
1122 	list_add_tail(&link->entry, &subsys->hosts);  in nvmet_allowed_hosts_allow_link()
1123 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_allow_link()
1136 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_drop_link()  local
1141 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_drop_link()
1150 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_drop_link()
1176 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_allow_any_host_store()  local
1184 	if (allow_any_host && !list_empty(&subsys->hosts)) {  in nvmet_subsys_attr_allow_any_host_store()
1190 	if (subsys->allow_any_host != allow_any_host) {  in nvmet_subsys_attr_allow_any_host_store()
1191 		subsys->allow_any_host = allow_any_host;  in nvmet_subsys_attr_allow_any_host_store()
1192 		nvmet_subsys_disc_changed(subsys, NULL);  in nvmet_subsys_attr_allow_any_host_store()
1205 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_show()  local
1207 	if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_show()
1209 				NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1210 				NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1211 				NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_show()
1214 			NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1215 			NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_show()
1219 nvmet_subsys_attr_version_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_version_store_locked()  argument
1225 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_version_store_locked()
1226 		if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_store_locked()
1228 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1229 			       NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1230 			       NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1233 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1234 			       NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1239 	if (nvmet_is_passthru_subsys(subsys))  in nvmet_subsys_attr_version_store_locked()
1246 	subsys->ver = NVME_VS(major, minor, tertiary);  in nvmet_subsys_attr_version_store_locked()
1254 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_store()  local
1258 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1259 	ret = nvmet_subsys_attr_version_store_locked(subsys, page, count);  in nvmet_subsys_attr_version_store()
1260 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1276 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_show()  local
1279 			NVMET_SN_MAX_SIZE, subsys->serial);  in nvmet_subsys_attr_serial_show()
1283 nvmet_subsys_attr_serial_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_serial_store_locked()  argument
1288 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_serial_store_locked()
1290 		       subsys->serial);  in nvmet_subsys_attr_serial_store_locked()
1307 	memcpy_and_pad(subsys->serial, NVMET_SN_MAX_SIZE, page, len, ' ');  in nvmet_subsys_attr_serial_store_locked()
1315 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_store()  local
1319 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1320 	ret = nvmet_subsys_attr_serial_store_locked(subsys, page, count);  in nvmet_subsys_attr_serial_store()
1321 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1391 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_show()  local
1393 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->model_number);  in nvmet_subsys_attr_model_show()
1396 static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_model_store_locked()  argument
1402 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_model_store_locked()
1404 		       subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1426 	kfree(subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1427 	subsys->model_number = val;  in nvmet_subsys_attr_model_store_locked()
1434 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_store()  local
1438 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1439 	ret = nvmet_subsys_attr_model_store_locked(subsys, page, count);  in nvmet_subsys_attr_model_store()
1440 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1450 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_show()  local
1452 	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_show()
1455 static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_ieee_oui_store_locked()  argument
1461 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_ieee_oui_store_locked()
1463 		      subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_store_locked()
1474 	subsys->ieee_oui = val;  in nvmet_subsys_attr_ieee_oui_store_locked()
1482 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_store()  local
1486 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1487 	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);  in nvmet_subsys_attr_ieee_oui_store()
1488 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1498 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_show()  local
1500 	return sysfs_emit(page, "%s\n", subsys->firmware_rev);  in nvmet_subsys_attr_firmware_show()
1503 static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_firmware_store_locked()  argument
1509 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_firmware_store_locked()
1511 		       subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1534 	kfree(subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1536 	subsys->firmware_rev = val;  in nvmet_subsys_attr_firmware_store_locked()
1544 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_store()  local
1548 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1549 	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);  in nvmet_subsys_attr_firmware_store()
1550 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1567 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_pi_enable_store()  local
1573 	subsys->pi_support = pi_enable;  in nvmet_subsys_attr_pi_enable_store()
1588 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_qid_max_store()  local
1599 	subsys->max_qid = qid_max;  in nvmet_subsys_attr_qid_max_store()
1602 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)  in nvmet_subsys_attr_qid_max_store()
1631 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_release()  local
1633 	nvmet_subsys_del_ctrls(subsys);  in nvmet_subsys_release()
1634 	nvmet_subsys_put(subsys);  in nvmet_subsys_release()
1650 	struct nvmet_subsys *subsys;  in nvmet_subsys_make()  local
1662 	subsys = nvmet_subsys_alloc(name, NVME_NQN_NVME);  in nvmet_subsys_make()
1663 	if (IS_ERR(subsys))  in nvmet_subsys_make()
1664 		return ERR_CAST(subsys);  in nvmet_subsys_make()
1666 	config_group_init_type_name(&subsys->group, name, &nvmet_subsys_type);  in nvmet_subsys_make()
1668 	config_group_init_type_name(&subsys->namespaces_group,  in nvmet_subsys_make()
1670 	configfs_add_default_group(&subsys->namespaces_group, &subsys->group);  in nvmet_subsys_make()
1672 	config_group_init_type_name(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1674 	configfs_add_default_group(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1675 			&subsys->group);  in nvmet_subsys_make()
1677 	nvmet_add_passthru_group(subsys);  in nvmet_subsys_make()
1679 	return &subsys->group;  in nvmet_subsys_make()