27 static int nfs_get_cb_ident_idr(struct nfs_client *clp, int minorversion)  in nfs_get_cb_ident_idr()  argument
30 	struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);  in nfs_get_cb_ident_idr()
32 	if (clp->rpc_ops->version != 4 || minorversion != 0)  in nfs_get_cb_ident_idr()
36 	ret = idr_alloc(&nn->cb_ident_idr, clp, 1, 0, GFP_NOWAIT);  in nfs_get_cb_ident_idr()
38 		clp->cl_cb_ident = ret;  in nfs_get_cb_ident_idr()
145 nfs4_shutdown_ds_clients(struct nfs_client *clp)  in nfs4_shutdown_ds_clients()  argument
150 	while (!list_empty(&clp->cl_ds_clients)) {  in nfs4_shutdown_ds_clients()
151 		dss = list_entry(clp->cl_ds_clients.next,  in nfs4_shutdown_ds_clients()
159 void nfs41_shutdown_client(struct nfs_client *clp)  in nfs41_shutdown_client()  argument
161 	if (nfs4_has_session(clp)) {  in nfs41_shutdown_client()
162 		nfs4_shutdown_ds_clients(clp);  in nfs41_shutdown_client()
163 		nfs4_destroy_session(clp->cl_session);  in nfs41_shutdown_client()
164 		nfs4_destroy_clientid(clp);  in nfs41_shutdown_client()
170 void nfs40_shutdown_client(struct nfs_client *clp)  in nfs40_shutdown_client()  argument
172 	if (clp->cl_slot_tbl) {  in nfs40_shutdown_client()
173 		nfs4_shutdown_slot_table(clp->cl_slot_tbl);  in nfs40_shutdown_client()
174 		kfree(clp->cl_slot_tbl);  in nfs40_shutdown_client()
181 	struct nfs_client *clp = nfs_alloc_client(cl_init);  in nfs4_alloc_client()  local
182 	if (IS_ERR(clp))  in nfs4_alloc_client()
183 		return clp;  in nfs4_alloc_client()
185 	err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);  in nfs4_alloc_client()
194 	spin_lock_init(&clp->cl_lock);  in nfs4_alloc_client()
195 	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);  in nfs4_alloc_client()
196 	INIT_LIST_HEAD(&clp->cl_ds_clients);  in nfs4_alloc_client()
197 	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");  in nfs4_alloc_client()
198 	clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;  in nfs4_alloc_client()
199 	clp->cl_minorversion = cl_init->minorversion;  in nfs4_alloc_client()
200 	clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];  in nfs4_alloc_client()
201 	clp->cl_mig_gen = 1;  in nfs4_alloc_client()
202 	return clp;  in nfs4_alloc_client()
205 	nfs_free_client(clp);  in nfs4_alloc_client()
212 static void nfs4_destroy_callback(struct nfs_client *clp)  in nfs4_destroy_callback()  argument
214 	if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))  in nfs4_destroy_callback()
215 		nfs_callback_down(clp->cl_mvops->minor_version, clp->cl_net);  in nfs4_destroy_callback()
218 static void nfs4_shutdown_client(struct nfs_client *clp)  in nfs4_shutdown_client()  argument
220 	if (__test_and_clear_bit(NFS_CS_RENEWD, &clp->cl_res_state))  in nfs4_shutdown_client()
221 		nfs4_kill_renewd(clp);  in nfs4_shutdown_client()
222 	clp->cl_mvops->shutdown_client(clp);  in nfs4_shutdown_client()
223 	nfs4_destroy_callback(clp);  in nfs4_shutdown_client()
224 	if (__test_and_clear_bit(NFS_CS_IDMAP, &clp->cl_res_state))  in nfs4_shutdown_client()
225 		nfs_idmap_delete(clp);  in nfs4_shutdown_client()
227 	rpc_destroy_wait_queue(&clp->cl_rpcwaitq);  in nfs4_shutdown_client()
228 	kfree(clp->cl_serverowner);  in nfs4_shutdown_client()
229 	kfree(clp->cl_serverscope);  in nfs4_shutdown_client()
230 	kfree(clp->cl_implid);  in nfs4_shutdown_client()
231 	kfree(clp->cl_owner_id);  in nfs4_shutdown_client()
234 void nfs4_free_client(struct nfs_client *clp)  in nfs4_free_client()  argument
236 	nfs4_shutdown_client(clp);  in nfs4_free_client()
237 	nfs_free_client(clp);  in nfs4_free_client()
243 static int nfs4_init_callback(struct nfs_client *clp)  in nfs4_init_callback()  argument
248 	xprt = rcu_dereference_raw(clp->cl_rpcclient->cl_xprt);  in nfs4_init_callback()
250 	if (nfs4_has_session(clp)) {  in nfs4_init_callback()
256 	error = nfs_callback_up(clp->cl_mvops->minor_version, xprt);  in nfs4_init_callback()
262 	__set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);  in nfs4_init_callback()
273 int nfs40_init_client(struct nfs_client *clp)  in nfs40_init_client()  argument
289 	clp->cl_slot_tbl = tbl;  in nfs40_init_client()
301 int nfs41_init_client(struct nfs_client *clp)  in nfs41_init_client()  argument
310 	session = nfs4_alloc_session(clp);  in nfs41_init_client()
314 	clp->cl_session = session;  in nfs41_init_client()
322 	nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING);  in nfs41_init_client()
331 static int nfs4_init_client_minor_version(struct nfs_client *clp)  in nfs4_init_client_minor_version()  argument
335 	ret = clp->cl_mvops->init_client(clp);  in nfs4_init_client_minor_version()
338 	return nfs4_init_callback(clp);  in nfs4_init_client_minor_version()
351 struct nfs_client *nfs4_init_client(struct nfs_client *clp,  in nfs4_init_client()  argument
359 	if (clp->cl_cons_state == NFS_CS_READY) {  in nfs4_init_client()
361 		dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);  in nfs4_init_client()
362 		return clp;  in nfs4_init_client()
366 	clp->rpc_ops = &nfs_v4_clientops;  in nfs4_init_client()
368 	if (clp->cl_minorversion != 0)  in nfs4_init_client()
369 		__set_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags);  in nfs4_init_client()
370 	__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);  in nfs4_init_client()
371 	__set_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags);  in nfs4_init_client()
373 	error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_GSS_KRB5I);  in nfs4_init_client()
375 		error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX);  in nfs4_init_client()
384 		error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));  in nfs4_init_client()
392 	strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));  in nfs4_init_client()
394 	error = nfs_idmap_new(clp);  in nfs4_init_client()
400 	__set_bit(NFS_CS_IDMAP, &clp->cl_res_state);  in nfs4_init_client()
402 	error = nfs4_init_client_minor_version(clp);  in nfs4_init_client()
406 	if (!nfs4_has_session(clp))  in nfs4_init_client()
407 		nfs_mark_client_ready(clp, NFS_CS_READY);  in nfs4_init_client()
409 	error = nfs4_discover_server_trunking(clp, &old);  in nfs4_init_client()
413 	if (clp != old)  in nfs4_init_client()
414 		clp->cl_preserve_clid = true;  in nfs4_init_client()
415 	nfs_put_client(clp);  in nfs4_init_client()
419 	nfs_mark_client_ready(clp, error);  in nfs4_init_client()
420 	nfs_put_client(clp);  in nfs4_init_client()
702 	struct nfs_client *clp;  in nfs4_find_client_ident()  local
706 	clp = idr_find(&nn->cb_ident_idr, cb_ident);  in nfs4_find_client_ident()
707 	if (clp)  in nfs4_find_client_ident()
708 		atomic_inc(&clp->cl_count);  in nfs4_find_client_ident()
710 	return clp;  in nfs4_find_client_ident()
716 		struct nfs_client *clp, u32 minorversion)  in nfs4_cb_match_client()  argument
718 	struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;  in nfs4_cb_match_client()
721 	if (!(clp->cl_cons_state == NFS_CS_READY ||  in nfs4_cb_match_client()
722 	    clp->cl_cons_state == NFS_CS_SESSION_INITING))  in nfs4_cb_match_client()
728 	if (clp->rpc_ops->version != 4 ||  in nfs4_cb_match_client()
729 	    clp->cl_minorversion != minorversion)  in nfs4_cb_match_client()
750 	struct nfs_client *clp;  in nfs4_find_client_sessionid()  local
754 	list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {  in nfs4_find_client_sessionid()
755 		if (nfs4_cb_match_client(addr, clp, minorversion) == false)  in nfs4_find_client_sessionid()
758 		if (!nfs4_has_session(clp))  in nfs4_find_client_sessionid()
762 		if (memcmp(clp->cl_session->sess_id.data,  in nfs4_find_client_sessionid()
766 		atomic_inc(&clp->cl_count);  in nfs4_find_client_sessionid()
768 		return clp;  in nfs4_find_client_sessionid()
805 	struct nfs_client *clp;  in nfs4_set_client()  local
816 	clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour);  in nfs4_set_client()
817 	if (IS_ERR(clp)) {  in nfs4_set_client()
818 		error = PTR_ERR(clp);  in nfs4_set_client()
829 	set_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state);  in nfs4_set_client()
831 	server->nfs_client = clp;  in nfs4_set_client()
832 	dprintk("<-- nfs4_set_client() = 0 [new %p]\n", clp);  in nfs4_set_client()
863 	struct nfs_client *clp;  in nfs4_set_ds_client()  local
876 	clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr,  in nfs4_set_ds_client()
879 	dprintk("<-- %s %p\n", __func__, clp);  in nfs4_set_ds_client()
880 	return clp;  in nfs4_set_ds_client()
1167 	struct nfs_client *clp = server->nfs_client;  in nfs4_update_server()  local
1170 		.ident		= clp->cl_proto,  in nfs4_update_server()
1209 				clp->cl_rpcclient->cl_auth->au_flavor,  in nfs4_update_server()
1210 				clp->cl_proto, clnt->cl_timeout,  in nfs4_update_server()
1211 				clp->cl_minorversion, net);  in nfs4_update_server()
1212 	nfs_put_client(clp);  in nfs4_update_server()