345 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_path_store()  local
349 	mutex_lock(&subsys->lock);  in nvmet_ns_device_path_store()
365 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
369 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_path_store()
392 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
409 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_p2pmem_store()
426 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_uuid_store()  local
429 	mutex_lock(&subsys->lock);  in nvmet_ns_device_uuid_store()
439 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_uuid_store()
454 	struct nvmet_subsys *subsys = ns->subsys;  in nvmet_ns_device_nguid_store()  local
460 	mutex_lock(&subsys->lock);  in nvmet_ns_device_nguid_store()
485 	mutex_unlock(&subsys->lock);  in nvmet_ns_device_nguid_store()
518 	nvmet_send_ana_event(ns->subsys, NULL);  in nvmet_ns_ana_grpid_store()
563 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
566 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
571 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_buffered_io_store()
589 	mutex_lock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
592 		mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
596 		nvmet_ns_changed(ns->subsys, ns->nsid);  in nvmet_ns_revalidate_size_store()
597 	mutex_unlock(&ns->subsys->lock);  in nvmet_ns_revalidate_size_store()
637 	struct nvmet_subsys *subsys = namespaces_to_subsys(&group->cg_item);  in nvmet_ns_make()  local
653 	ns = nvmet_ns_alloc(subsys, nsid);  in nvmet_ns_make()
658 	pr_info("adding nsid %d to subsystem %s\n", nsid, subsys->subsysnqn);  in nvmet_ns_make()
679 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_show()  local
681 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_show()
687 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_device_path_store()  local
691 	mutex_lock(&subsys->lock);  in nvmet_passthru_device_path_store()
694 	if (subsys->passthru_ctrl)  in nvmet_passthru_device_path_store()
702 	kfree(subsys->passthru_ctrl_path);  in nvmet_passthru_device_path_store()
704 	subsys->passthru_ctrl_path = kstrndup(page, len, GFP_KERNEL);  in nvmet_passthru_device_path_store()
705 	if (!subsys->passthru_ctrl_path)  in nvmet_passthru_device_path_store()
708 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
712 	mutex_unlock(&subsys->lock);  in nvmet_passthru_device_path_store()
720 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_show()  local
722 	return sprintf(page, "%d\n", subsys->passthru_ctrl ? 1 : 0);  in nvmet_passthru_enable_show()
728 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_enable_store()  local
736 		ret = nvmet_passthru_ctrl_enable(subsys);  in nvmet_passthru_enable_store()
738 		nvmet_passthru_ctrl_disable(subsys);  in nvmet_passthru_enable_store()
753 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_admin_timeout_store()  local
758 	subsys->admin_timeout = timeout;  in nvmet_passthru_admin_timeout_store()
772 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_io_timeout_store()  local
777 	subsys->io_timeout = timeout;  in nvmet_passthru_io_timeout_store()
791 	struct nvmet_subsys *subsys = to_subsys(item->ci_parent);  in nvmet_passthru_clear_ids_store()  local
796 	subsys->clear_ids = clear_ids;  in nvmet_passthru_clear_ids_store()
815 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
817 	config_group_init_type_name(&subsys->passthru_group,  in nvmet_add_passthru_group()
819 	configfs_add_default_group(&subsys->passthru_group,  in nvmet_add_passthru_group()
820 				   &subsys->group);  in nvmet_add_passthru_group()
825 static void nvmet_add_passthru_group(struct nvmet_subsys *subsys)  in nvmet_add_passthru_group()  argument
835 	struct nvmet_subsys *subsys;  in nvmet_port_subsys_allow_link()  local
843 	subsys = to_subsys(target);  in nvmet_port_subsys_allow_link()
847 	link->subsys = subsys;  in nvmet_port_subsys_allow_link()
852 		if (p->subsys == subsys)  in nvmet_port_subsys_allow_link()
863 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_allow_link()
878 	struct nvmet_subsys *subsys = to_subsys(target);  in nvmet_port_subsys_drop_link()  local
883 		if (p->subsys == subsys)  in nvmet_port_subsys_drop_link()
891 	nvmet_port_del_ctrls(port, subsys);  in nvmet_port_subsys_drop_link()
892 	nvmet_port_disc_changed(port, subsys);  in nvmet_port_subsys_drop_link()
913 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_allow_link()  local
931 	if (subsys->allow_any_host) {  in nvmet_allowed_hosts_allow_link()
937 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_allow_link()
941 	list_add_tail(&link->entry, &subsys->hosts);  in nvmet_allowed_hosts_allow_link()
942 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_allow_link()
955 	struct nvmet_subsys *subsys = to_subsys(parent->ci_parent);  in nvmet_allowed_hosts_drop_link()  local
960 	list_for_each_entry(p, &subsys->hosts, entry) {  in nvmet_allowed_hosts_drop_link()
969 	nvmet_subsys_disc_changed(subsys, host);  in nvmet_allowed_hosts_drop_link()
995 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_allow_any_host_store()  local
1003 	if (allow_any_host && !list_empty(&subsys->hosts)) {  in nvmet_subsys_attr_allow_any_host_store()
1009 	if (subsys->allow_any_host != allow_any_host) {  in nvmet_subsys_attr_allow_any_host_store()
1010 		subsys->allow_any_host = allow_any_host;  in nvmet_subsys_attr_allow_any_host_store()
1011 		nvmet_subsys_disc_changed(subsys, NULL);  in nvmet_subsys_attr_allow_any_host_store()
1024 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_show()  local
1026 	if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_show()
1028 				NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1029 				NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1030 				NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_show()
1033 			NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_show()
1034 			NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_show()
1038 nvmet_subsys_attr_version_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_version_store_locked()  argument
1044 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_version_store_locked()
1045 		if (NVME_TERTIARY(subsys->ver))  in nvmet_subsys_attr_version_store_locked()
1047 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1048 			       NVME_MINOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1049 			       NVME_TERTIARY(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1052 			       NVME_MAJOR(subsys->ver),  in nvmet_subsys_attr_version_store_locked()
1053 			       NVME_MINOR(subsys->ver));  in nvmet_subsys_attr_version_store_locked()
1058 	if (nvmet_is_passthru_subsys(subsys))  in nvmet_subsys_attr_version_store_locked()
1065 	subsys->ver = NVME_VS(major, minor, tertiary);  in nvmet_subsys_attr_version_store_locked()
1073 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_version_store()  local
1077 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1078 	ret = nvmet_subsys_attr_version_store_locked(subsys, page, count);  in nvmet_subsys_attr_version_store()
1079 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_version_store()
1095 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_show()  local
1098 			NVMET_SN_MAX_SIZE, subsys->serial);  in nvmet_subsys_attr_serial_show()
1102 nvmet_subsys_attr_serial_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_serial_store_locked()  argument
1107 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_serial_store_locked()
1109 		       subsys->serial);  in nvmet_subsys_attr_serial_store_locked()
1126 	memcpy_and_pad(subsys->serial, NVMET_SN_MAX_SIZE, page, len, ' ');  in nvmet_subsys_attr_serial_store_locked()
1134 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_serial_store()  local
1138 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1139 	ret = nvmet_subsys_attr_serial_store_locked(subsys, page, count);  in nvmet_subsys_attr_serial_store()
1140 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_serial_store()
1210 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_show()  local
1212 	return snprintf(page, PAGE_SIZE, "%s\n", subsys->model_number);  in nvmet_subsys_attr_model_show()
1215 static ssize_t nvmet_subsys_attr_model_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_model_store_locked()  argument
1221 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_model_store_locked()
1223 		       subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1245 	kfree(subsys->model_number);  in nvmet_subsys_attr_model_store_locked()
1246 	subsys->model_number = val;  in nvmet_subsys_attr_model_store_locked()
1253 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_model_store()  local
1257 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1258 	ret = nvmet_subsys_attr_model_store_locked(subsys, page, count);  in nvmet_subsys_attr_model_store()
1259 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_model_store()
1269 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_show()  local
1271 	return sysfs_emit(page, "0x%06x\n", subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_show()
1274 static ssize_t nvmet_subsys_attr_ieee_oui_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_ieee_oui_store_locked()  argument
1280 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_ieee_oui_store_locked()
1282 		      subsys->ieee_oui);  in nvmet_subsys_attr_ieee_oui_store_locked()
1293 	subsys->ieee_oui = val;  in nvmet_subsys_attr_ieee_oui_store_locked()
1301 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_ieee_oui_store()  local
1305 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1306 	ret = nvmet_subsys_attr_ieee_oui_store_locked(subsys, page, count);  in nvmet_subsys_attr_ieee_oui_store()
1307 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_ieee_oui_store()
1317 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_show()  local
1319 	return sysfs_emit(page, "%s\n", subsys->firmware_rev);  in nvmet_subsys_attr_firmware_show()
1322 static ssize_t nvmet_subsys_attr_firmware_store_locked(struct nvmet_subsys *subsys,  in nvmet_subsys_attr_firmware_store_locked()  argument
1328 	if (subsys->subsys_discovered) {  in nvmet_subsys_attr_firmware_store_locked()
1330 		       subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1353 	kfree(subsys->firmware_rev);  in nvmet_subsys_attr_firmware_store_locked()
1355 	subsys->firmware_rev = val;  in nvmet_subsys_attr_firmware_store_locked()
1363 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_firmware_store()  local
1367 	mutex_lock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1368 	ret = nvmet_subsys_attr_firmware_store_locked(subsys, page, count);  in nvmet_subsys_attr_firmware_store()
1369 	mutex_unlock(&subsys->lock);  in nvmet_subsys_attr_firmware_store()
1386 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_pi_enable_store()  local
1392 	subsys->pi_support = pi_enable;  in nvmet_subsys_attr_pi_enable_store()
1407 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_attr_qid_max_store()  local
1418 	subsys->max_qid = qid_max;  in nvmet_subsys_attr_qid_max_store()
1421 	list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry)  in nvmet_subsys_attr_qid_max_store()
1450 	struct nvmet_subsys *subsys = to_subsys(item);  in nvmet_subsys_release()  local
1452 	nvmet_subsys_del_ctrls(subsys);  in nvmet_subsys_release()
1453 	nvmet_subsys_put(subsys);  in nvmet_subsys_release()
1469 	struct nvmet_subsys *subsys;  in nvmet_subsys_make()  local
1476 	subsys = nvmet_subsys_alloc(name, NVME_NQN_NVME);  in nvmet_subsys_make()
1477 	if (IS_ERR(subsys))  in nvmet_subsys_make()
1478 		return ERR_CAST(subsys);  in nvmet_subsys_make()
1480 	config_group_init_type_name(&subsys->group, name, &nvmet_subsys_type);  in nvmet_subsys_make()
1482 	config_group_init_type_name(&subsys->namespaces_group,  in nvmet_subsys_make()
1484 	configfs_add_default_group(&subsys->namespaces_group, &subsys->group);  in nvmet_subsys_make()
1486 	config_group_init_type_name(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1488 	configfs_add_default_group(&subsys->allowed_hosts_group,  in nvmet_subsys_make()
1489 			&subsys->group);  in nvmet_subsys_make()
1491 	nvmet_add_passthru_group(subsys);  in nvmet_subsys_make()
1493 	return &subsys->group;  in nvmet_subsys_make()