2502 	struct nfs4_client *conf, *new;  in nfsd4_exchange_id()  local
2568 	conf = find_confirmed_client_by_name(&exid->clname, nn);  in nfsd4_exchange_id()
2569 	if (conf) {  in nfsd4_exchange_id()
2570 		bool creds_match = same_creds(&conf->cl_cred, &rqstp->rq_cred);  in nfsd4_exchange_id()
2571 		bool verfs_match = same_verf(&verf, &conf->cl_verifier);  in nfsd4_exchange_id()
2574 			if (!clp_used_exchangeid(conf)) { /* buggy client */  in nfsd4_exchange_id()
2578 			if (!nfsd4_mach_creds_match(conf, rqstp)) {  in nfsd4_exchange_id()
2595 			if (client_has_state(conf)) {  in nfsd4_exchange_id()
2602 			conf->cl_exchange_flags |= EXCHGID4_FLAG_CONFIRMED_R;  in nfsd4_exchange_id()
2606 		conf = NULL;  in nfsd4_exchange_id()
2621 	if (conf) {  in nfsd4_exchange_id()
2622 		status = mark_client_expired_locked(conf);  in nfsd4_exchange_id()
2632 	swap(new, conf);  in nfsd4_exchange_id()
2634 	exid->clientid.cl_boot = conf->cl_clientid.cl_boot;  in nfsd4_exchange_id()
2635 	exid->clientid.cl_id = conf->cl_clientid.cl_id;  in nfsd4_exchange_id()
2637 	exid->seqid = conf->cl_cs_slot.sl_seqid + 1;  in nfsd4_exchange_id()
2638 	nfsd4_set_ex_flags(conf, exid);  in nfsd4_exchange_id()
2641 		conf->cl_cs_slot.sl_seqid, conf->cl_exchange_flags);  in nfsd4_exchange_id()
2798 	struct nfs4_client *conf, *unconf;  in nfsd4_create_session()  local
2827 	conf = find_confirmed_client(&cr_ses->clientid, true, nn);  in nfsd4_create_session()
2828 	WARN_ON_ONCE(conf && unconf);  in nfsd4_create_session()
2830 	if (conf) {  in nfsd4_create_session()
2832 		if (!nfsd4_mach_creds_match(conf, rqstp))  in nfsd4_create_session()
2834 		cs_slot = &conf->cl_cs_slot;  in nfsd4_create_session()
2866 		conf = unconf;  in nfsd4_create_session()
2877 	init_session(rqstp, new, conf, cr_ses);  in nfsd4_create_session()
3261 	struct nfs4_client *conf, *unconf;  in nfsd4_destroy_clientid()  local
3268 	conf = find_confirmed_client(&dc->clientid, true, nn);  in nfsd4_destroy_clientid()
3269 	WARN_ON_ONCE(conf && unconf);  in nfsd4_destroy_clientid()
3271 	if (conf) {  in nfsd4_destroy_clientid()
3272 		if (client_has_state(conf)) {  in nfsd4_destroy_clientid()
3276 		status = mark_client_expired_locked(conf);  in nfsd4_destroy_clientid()
3279 		clp = conf;  in nfsd4_destroy_clientid()
3345 	struct nfs4_client	*conf, *new;  in nfsd4_setclientid()  local
3355 	conf = find_confirmed_client_by_name(&clname, nn);  in nfsd4_setclientid()
3356 	if (conf && client_has_state(conf)) {  in nfsd4_setclientid()
3359 		if (clp_used_exchangeid(conf))  in nfsd4_setclientid()
3361 		if (!same_creds(&conf->cl_cred, &rqstp->rq_cred)) {  in nfsd4_setclientid()
3363 			rpc_ntop((struct sockaddr *) &conf->cl_addr, addr_str,  in nfsd4_setclientid()
3373 	if (conf && same_verf(&conf->cl_verifier, &clverifier)) {  in nfsd4_setclientid()
3375 		copy_clid(new, conf);  in nfsd4_setclientid()
3404 	struct nfs4_client *conf, *unconf;  in nfsd4_setclientid_confirm()  local
3415 	conf = find_confirmed_client(clid, false, nn);  in nfsd4_setclientid_confirm()
3427 	if (conf && !same_creds(&conf->cl_cred, &rqstp->rq_cred))  in nfsd4_setclientid_confirm()
3431 		if (conf && same_verf(&confirm, &conf->cl_confirm)) {  in nfsd4_setclientid_confirm()
3439 	if (conf) { /* case 1: callback update */  in nfsd4_setclientid_confirm()
3442 		nfsd4_change_callback(conf, &unconf->cl_cb_conn);  in nfsd4_setclientid_confirm()
3460 		conf = unconf;  in nfsd4_setclientid_confirm()
3462 	get_client_locked(conf);  in nfsd4_setclientid_confirm()
3464 	nfsd4_probe_callback(conf);  in nfsd4_setclientid_confirm()
3466 	put_client_renew_locked(conf);  in nfsd4_setclientid_confirm()