151 	struct nfs_client *clp;  in nfs_alloc_client()  local
154 	if ((clp = kzalloc(sizeof(*clp), GFP_KERNEL)) == NULL)  in nfs_alloc_client()
157 	clp->cl_minorversion = cl_init->minorversion;  in nfs_alloc_client()
158 	clp->cl_nfs_mod = cl_init->nfs_mod;  in nfs_alloc_client()
159 	if (!try_module_get(clp->cl_nfs_mod->owner))  in nfs_alloc_client()
162 	clp->rpc_ops = clp->cl_nfs_mod->rpc_ops;  in nfs_alloc_client()
164 	refcount_set(&clp->cl_count, 1);  in nfs_alloc_client()
165 	clp->cl_cons_state = NFS_CS_INITING;  in nfs_alloc_client()
167 	memcpy(&clp->cl_addr, cl_init->addr, cl_init->addrlen);  in nfs_alloc_client()
168 	clp->cl_addrlen = cl_init->addrlen;  in nfs_alloc_client()
172 		clp->cl_hostname = kstrdup(cl_init->hostname, GFP_KERNEL);  in nfs_alloc_client()
173 		if (!clp->cl_hostname)  in nfs_alloc_client()
177 	INIT_LIST_HEAD(&clp->cl_superblocks);  in nfs_alloc_client()
178 	clp->cl_rpcclient = ERR_PTR(-EINVAL);  in nfs_alloc_client()
180 	clp->cl_flags = cl_init->init_flags;  in nfs_alloc_client()
181 	clp->cl_proto = cl_init->proto;  in nfs_alloc_client()
182 	clp->cl_nconnect = cl_init->nconnect;  in nfs_alloc_client()
183 	clp->cl_max_connect = cl_init->max_connect ? cl_init->max_connect : 1;  in nfs_alloc_client()
184 	clp->cl_net = get_net(cl_init->net);  in nfs_alloc_client()
186 	clp->cl_principal = "*";  in nfs_alloc_client()
187 	clp->cl_xprtsec = cl_init->xprtsec;  in nfs_alloc_client()
188 	return clp;  in nfs_alloc_client()
191 	put_nfs_version(clp->cl_nfs_mod);  in nfs_alloc_client()
193 	kfree(clp);  in nfs_alloc_client()
208 static void nfs_cb_idr_remove_locked(struct nfs_client *clp)  in nfs_cb_idr_remove_locked()  argument
210 	struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);  in nfs_cb_idr_remove_locked()
212 	if (clp->cl_cb_ident)  in nfs_cb_idr_remove_locked()
213 		idr_remove(&nn->cb_ident_idr, clp->cl_cb_ident);  in nfs_cb_idr_remove_locked()
226 static void nfs_cb_idr_remove_locked(struct nfs_client *clp)  in nfs_cb_idr_remove_locked()  argument
239 void nfs_free_client(struct nfs_client *clp)  in nfs_free_client()  argument
242 	if (!IS_ERR(clp->cl_rpcclient))  in nfs_free_client()
243 		rpc_shutdown_client(clp->cl_rpcclient);  in nfs_free_client()
245 	put_net(clp->cl_net);  in nfs_free_client()
246 	put_nfs_version(clp->cl_nfs_mod);  in nfs_free_client()
247 	kfree(clp->cl_hostname);  in nfs_free_client()
248 	kfree(clp->cl_acceptor);  in nfs_free_client()
249 	kfree(clp);  in nfs_free_client()
256 void nfs_put_client(struct nfs_client *clp)  in nfs_put_client()  argument
260 	if (!clp)  in nfs_put_client()
263 	nn = net_generic(clp->cl_net, nfs_net_id);  in nfs_put_client()
265 	if (refcount_dec_and_lock(&clp->cl_count, &nn->nfs_client_lock)) {  in nfs_put_client()
266 		list_del(&clp->cl_share_link);  in nfs_put_client()
267 		nfs_cb_idr_remove_locked(clp);  in nfs_put_client()
270 		WARN_ON_ONCE(!list_empty(&clp->cl_superblocks));  in nfs_put_client()
272 		clp->rpc_ops->free_client(clp);  in nfs_put_client()
283 	struct nfs_client *clp;  in nfs_match_client()  local
289 	list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {  in nfs_match_client()
290 	        const struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;  in nfs_match_client()
292 		if (clp->cl_cons_state < 0)  in nfs_match_client()
296 		if (clp->cl_cons_state > NFS_CS_READY) {  in nfs_match_client()
297 			refcount_inc(&clp->cl_count);  in nfs_match_client()
299 			error = nfs_wait_client_init_complete(clp);  in nfs_match_client()
300 			nfs_put_client(clp);  in nfs_match_client()
308 		if (clp->rpc_ops != data->nfs_mod->rpc_ops)  in nfs_match_client()
311 		if (clp->cl_proto != data->proto)  in nfs_match_client()
314 		if (clp->cl_minorversion != data->minorversion)  in nfs_match_client()
319 		    test_bit(NFS_CS_DS, &clp->cl_flags))  in nfs_match_client()
325 			if (IS_ERR(clp->cl_rpcclient) ||  in nfs_match_client()
326                             !rpc_clnt_xprt_switch_has_addr(clp->cl_rpcclient,  in nfs_match_client()
331 		if (clp->cl_xprtsec.policy != data->xprtsec.policy)  in nfs_match_client()
334 		refcount_inc(&clp->cl_count);  in nfs_match_client()
335 		return clp;  in nfs_match_client()
345 bool nfs_client_init_is_complete(const struct nfs_client *clp)  in nfs_client_init_is_complete()  argument
347 	return clp->cl_cons_state <= NFS_CS_READY;  in nfs_client_init_is_complete()
357 int nfs_client_init_status(const struct nfs_client *clp)  in nfs_client_init_status()  argument
360 	if (clp->cl_cons_state > NFS_CS_READY) {  in nfs_client_init_status()
364 	return clp->cl_cons_state;  in nfs_client_init_status()
368 int nfs_wait_client_init_complete(const struct nfs_client *clp)  in nfs_wait_client_init_complete()  argument
371 			nfs_client_init_is_complete(clp));  in nfs_wait_client_init_complete()
380 		 struct nfs_client *clp)  in nfs_found_client()  argument
384 	error = nfs_wait_client_init_complete(clp);  in nfs_found_client()
386 		nfs_put_client(clp);  in nfs_found_client()
390 	if (clp->cl_cons_state < NFS_CS_READY) {  in nfs_found_client()
391 		error = clp->cl_cons_state;  in nfs_found_client()
392 		nfs_put_client(clp);  in nfs_found_client()
397 	return clp;  in nfs_found_client()
406 	struct nfs_client *clp, *new = NULL;  in nfs_get_client()  local
419 		clp = nfs_match_client(cl_init);  in nfs_get_client()
420 		if (clp) {  in nfs_get_client()
424 			if (IS_ERR(clp))  in nfs_get_client()
425 				return clp;  in nfs_get_client()
426 			return nfs_found_client(cl_init, clp);  in nfs_get_client()
447 void nfs_mark_client_ready(struct nfs_client *clp, int state)  in nfs_mark_client_ready()  argument
450 	clp->cl_cons_state = state;  in nfs_mark_client_ready()
501 int nfs_create_rpc_client(struct nfs_client *clp,  in nfs_create_rpc_client()  argument
507 		.net		= clp->cl_net,  in nfs_create_rpc_client()
508 		.protocol	= clp->cl_proto,  in nfs_create_rpc_client()
509 		.nconnect	= clp->cl_nconnect,  in nfs_create_rpc_client()
510 		.address	= (struct sockaddr *)&clp->cl_addr,  in nfs_create_rpc_client()
511 		.addrsize	= clp->cl_addrlen,  in nfs_create_rpc_client()
513 		.servername	= clp->cl_hostname,  in nfs_create_rpc_client()
516 		.version	= clp->rpc_ops->version,  in nfs_create_rpc_client()
524 	if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))  in nfs_create_rpc_client()
526 	if (test_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags))  in nfs_create_rpc_client()
528 	if (test_bit(NFS_CS_NORESVPORT, &clp->cl_flags))  in nfs_create_rpc_client()
530 	if (test_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags))  in nfs_create_rpc_client()
532 	if (test_bit(NFS_CS_NOPING, &clp->cl_flags))  in nfs_create_rpc_client()
534 	if (test_bit(NFS_CS_REUSEPORT, &clp->cl_flags))  in nfs_create_rpc_client()
537 	if (!IS_ERR(clp->cl_rpcclient))  in nfs_create_rpc_client()
547 	clnt->cl_principal = clp->cl_principal;  in nfs_create_rpc_client()
548 	clp->cl_rpcclient = clnt;  in nfs_create_rpc_client()
549 	clnt->cl_max_connect = clp->cl_max_connect;  in nfs_create_rpc_client()
569 	struct nfs_client *clp = server->nfs_client;  in nfs_start_lockd()  local
571 		.hostname	= clp->cl_hostname,  in nfs_start_lockd()
572 		.address	= (struct sockaddr *)&clp->cl_addr,  in nfs_start_lockd()
573 		.addrlen	= clp->cl_addrlen,  in nfs_start_lockd()
574 		.nfs_version	= clp->rpc_ops->version,  in nfs_start_lockd()
577 		.net		= clp->cl_net,  in nfs_start_lockd()
578 		.nlmclnt_ops 	= clp->cl_nfs_mod->rpc_ops->nlmclnt_ops,  in nfs_start_lockd()
588 	switch (clp->cl_proto) {  in nfs_start_lockd()
615 	struct nfs_client *clp = server->nfs_client;  in nfs_init_server_rpcclient()  local
617 	server->client = rpc_clone_client_set_auth(clp->cl_rpcclient,  in nfs_init_server_rpcclient()
647 struct nfs_client *nfs_init_client(struct nfs_client *clp,  in nfs_init_client()  argument
653 	if (clp->cl_cons_state == NFS_CS_READY)  in nfs_init_client()
654 		return clp;  in nfs_init_client()
660 	error = nfs_create_rpc_client(clp, cl_init, RPC_AUTH_UNIX);  in nfs_init_client()
661 	nfs_mark_client_ready(clp, error == 0 ? NFS_CS_READY : error);  in nfs_init_client()
663 		nfs_put_client(clp);  in nfs_init_client()
664 		clp = ERR_PTR(error);  in nfs_init_client()
666 	return clp;  in nfs_init_client()
691 	struct nfs_client *clp;  in nfs_init_server()  local
700 	clp = nfs_get_client(&cl_init);  in nfs_init_server()
701 	if (IS_ERR(clp))  in nfs_init_server()
702 		return PTR_ERR(clp);  in nfs_init_server()
704 	server->nfs_client = clp;  in nfs_init_server()
706 	nfs_sysfs_link_rpc_client(server, clp->cl_rpcclient, "_state");  in nfs_init_server()
713 	switch (clp->rpc_ops->version) {  in nfs_init_server()
725 		server->rsize = nfs_io_size(ctx->rsize, clp->cl_proto);  in nfs_init_server()
727 		server->wsize = nfs_io_size(ctx->wsize, clp->cl_proto);  in nfs_init_server()
762 	nfs_put_client(clp);  in nfs_init_server()
772 	struct nfs_client *clp = server->nfs_client;  in nfs_server_set_fsinfo()  local
777 		server->rsize = nfs_io_size(fsinfo->rtpref, clp->cl_proto);  in nfs_server_set_fsinfo()
779 		server->wsize = nfs_io_size(fsinfo->wtpref, clp->cl_proto);  in nfs_server_set_fsinfo()
782 		server->rsize = nfs_io_size(fsinfo->rtmax, clp->cl_proto);  in nfs_server_set_fsinfo()
784 		server->wsize = nfs_io_size(fsinfo->wtmax, clp->cl_proto);  in nfs_server_set_fsinfo()
845 	struct nfs_client *clp = server->nfs_client;  in nfs_probe_fsinfo()  local
848 	if (clp->rpc_ops->set_capabilities != NULL) {  in nfs_probe_fsinfo()
849 		error = clp->rpc_ops->set_capabilities(server, mntfh);  in nfs_probe_fsinfo()
857 	error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo);  in nfs_probe_fsinfo()
870 		if (clp->rpc_ops->pathconf(server, mntfh, &pathinfo) >= 0)  in nfs_probe_fsinfo()
874 	if (clp->rpc_ops->discover_trunking != NULL &&  in nfs_probe_fsinfo()
877 		error = clp->rpc_ops->discover_trunking(server, mntfh);  in nfs_probe_fsinfo()
930 	struct nfs_client *clp = server->nfs_client;  in nfs_server_insert_lists()  local
931 	struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);  in nfs_server_insert_lists()
934 	list_add_tail_rcu(&server->client_link, &clp->cl_superblocks);  in nfs_server_insert_lists()
936 	clear_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state);  in nfs_server_insert_lists()
944 	struct nfs_client *clp = server->nfs_client;  in nfs_server_remove_lists()  local
947 	if (clp == NULL)  in nfs_server_remove_lists()
949 	nn = net_generic(clp->cl_net, nfs_net_id);  in nfs_server_remove_lists()
952 	if (list_empty(&clp->cl_superblocks))  in nfs_server_remove_lists()
953 		set_bit(NFS_CS_STOP_RENEW, &clp->cl_res_state);  in nfs_server_remove_lists()
1256 	struct nfs_client *clp;  in nfs_server_list_show()  local
1266 	clp = list_entry(v, struct nfs_client, cl_share_link);  in nfs_server_list_show()
1269 	if (clp->cl_cons_state != NFS_CS_READY)  in nfs_server_list_show()
1274 		   clp->rpc_ops->version,  in nfs_server_list_show()
1275 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),  in nfs_server_list_show()
1276 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),  in nfs_server_list_show()
1277 		   refcount_read(&clp->cl_count),  in nfs_server_list_show()
1278 		   clp->cl_hostname);  in nfs_server_list_show()
1324 	struct nfs_client *clp;  in nfs_volume_list_show()  local
1337 	clp = server->nfs_client;  in nfs_volume_list_show()
1348 		   clp->rpc_ops->version,  in nfs_volume_list_show()
1349 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_ADDR),  in nfs_volume_list_show()
1350 		   rpc_peeraddr2str(clp->cl_rpcclient, RPC_DISPLAY_HEX_PORT),  in nfs_volume_list_show()