48  * Per auth flavor data server rpc clients
129  * Find or create a DS rpc client with th MDS server rpc client auth flavor
240 	 * Set up the connection to the server before we add add to the  in nfs4_alloc_client()
387 	 * The create session reply races with the server back  in nfs41_init_client()
489  * "drop," but server trunking discovery claims "drop" and "keep" are
490  * actually the same server.  Swap the callback IDs so that "keep"
491  * will continue to use the callback ident the server now knows about,
576  * nfs40_walk_client_list - Find server that recognizes a client ID
613 		 * caused the server to return a new cl_confirm.  So if  in nfs40_walk_client_list()
615 		 * server that just returned the same cl_confirm by  in nfs40_walk_client_list()
624 		 * if new and pos point to the same server:  in nfs40_walk_client_list()
661 	/* No match found. The server lost our clientid */  in nfs40_walk_client_list()
669  * Returns true if the server major ids match
681  * Returns true if the server scopes match
743  * nfs41_walk_client_list - Find nfs_client that matches a client/server owner
798 static void nfs4_destroy_server(struct nfs_server *server)  in nfs4_destroy_server()  argument
802 	nfs_server_return_all_delegations(server);  in nfs4_destroy_server()
803 	unset_pnfs_layoutdriver(server);  in nfs4_destroy_server()
804 	nfs4_purge_state_owners(server, &freeme);  in nfs4_destroy_server()
806 	kfree(server->delegation_hash_table);  in nfs4_destroy_server()
899 static int nfs4_set_client(struct nfs_server *server,  in nfs4_set_client()  argument
905 	cl_init->cred = server->cred;  in nfs4_set_client()
921 	if (server->flags & NFS_MOUNT_NORESVPORT)  in nfs4_set_client()
923 	if (server->options & NFS_OPTION_MIGRATION)  in nfs4_set_client()
925 	if (test_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status))  in nfs4_set_client()
927 	server->port = rpc_get_port((struct sockaddr *)cl_init->addr);  in nfs4_set_client()
929 	if (server->flags & NFS_MOUNT_NETUNREACH_FATAL)  in nfs4_set_client()
937 	if (server->nfs_client == clp) {  in nfs4_set_client()
951 	server->nfs_client = clp;  in nfs4_set_client()
952 	nfs_sysfs_add_server(server);  in nfs4_set_client()
953 	nfs_sysfs_link_rpc_client(server, clp->cl_rpcclient, "_state");  in nfs4_set_client()
959  * Set up a pNFS Data Server client.
961  * Return any existing nfs_client that matches server address,port,version
1026 static void nfs4_session_limit_rwsize(struct nfs_server *server)  in nfs4_session_limit_rwsize()  argument
1033 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_rwsize()
1035 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_rwsize()
1039 	if (server->dtsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1040 		server->dtsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1041 	if (server->rsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1042 		server->rsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1043 	if (server->wsize > server_rqst_sz)  in nfs4_session_limit_rwsize()
1044 		server->wsize = server_rqst_sz;  in nfs4_session_limit_rwsize()
1051 static void nfs4_session_limit_xasize(struct nfs_server *server)  in nfs4_session_limit_xasize()  argument
1059 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_xasize()
1062 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_xasize()
1069 	if (server->gxasize > server_gxa_sz)  in nfs4_session_limit_xasize()
1070 		server->gxasize = server_gxa_sz;  in nfs4_session_limit_xasize()
1071 	if (server->sxasize > server_sxa_sz)  in nfs4_session_limit_xasize()
1072 		server->sxasize = server_sxa_sz;  in nfs4_session_limit_xasize()
1073 	if (server->lxasize > server_lxa_sz)  in nfs4_session_limit_xasize()
1074 		server->lxasize = server_lxa_sz;  in nfs4_session_limit_xasize()
1078 static int nfs4_server_common_setup(struct nfs_server *server,  in nfs4_server_common_setup()  argument
1083 	error = nfs4_delegation_hash_alloc(server);  in nfs4_server_common_setup()
1088 	if (is_ds_only_client(server->nfs_client))  in nfs4_server_common_setup()
1092 	error = nfs4_init_session(server->nfs_client);  in nfs4_server_common_setup()
1096 	nfs_server_set_init_caps(server);  in nfs4_server_common_setup()
1099 	error = nfs4_get_rootfh(server, mntfh, auth_probe);  in nfs4_server_common_setup()
1103 	dprintk("Server FSID: %llx:%llx\n",  in nfs4_server_common_setup()
1104 			(unsigned long long) server->fsid.major,  in nfs4_server_common_setup()
1105 			(unsigned long long) server->fsid.minor);  in nfs4_server_common_setup()
1108 	error = nfs_probe_server(server, mntfh);  in nfs4_server_common_setup()
1112 	nfs4_session_limit_rwsize(server);  in nfs4_server_common_setup()
1113 	nfs4_session_limit_xasize(server);  in nfs4_server_common_setup()
1115 	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)  in nfs4_server_common_setup()
1116 		server->namelen = NFS4_MAXNAMLEN;  in nfs4_server_common_setup()
1118 	nfs_server_insert_lists(server);  in nfs4_server_common_setup()
1119 	server->mount_time = jiffies;  in nfs4_server_common_setup()
1120 	server->destroy = nfs4_destroy_server;  in nfs4_server_common_setup()
1127 static int nfs4_init_server(struct nfs_server *server, struct fs_context *fc)  in nfs4_init_server()  argument
1150 	server->flags = ctx->flags;  in nfs4_init_server()
1151 	server->options = ctx->options;  in nfs4_init_server()
1152 	server->auth_info = ctx->auth_info;  in nfs4_init_server()
1155 	 * allowed by the server, use the SECINFO path to try the  in nfs4_init_server()
1163 	error = nfs4_set_client(server, &cl_init);  in nfs4_init_server()
1168 		server->rsize = nfs_io_size(ctx->rsize, server->nfs_client->cl_proto);  in nfs4_init_server()
1170 		server->wsize = nfs_io_size(ctx->wsize, server->nfs_client->cl_proto);  in nfs4_init_server()
1172 	server->acregmin = ctx->acregmin * HZ;  in nfs4_init_server()
1173 	server->acregmax = ctx->acregmax * HZ;  in nfs4_init_server()
1174 	server->acdirmin = ctx->acdirmin * HZ;  in nfs4_init_server()
1175 	server->acdirmax = ctx->acdirmax * HZ;  in nfs4_init_server()
1176 	server->port     = ctx->nfs_server.port;  in nfs4_init_server()
1178 	return nfs_init_server_rpcclient(server, &timeparms,  in nfs4_init_server()
1184  * - keyed on server and FSID
1189 	struct nfs_server *server;  in nfs4_create_server()  local
1193 	server = nfs_alloc_server();  in nfs4_create_server()
1194 	if (!server)  in nfs4_create_server()
1197 	server->cred = get_cred(fc->cred);  in nfs4_create_server()
1202 	error = nfs4_init_server(server, fc);  in nfs4_create_server()
1206 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_server()
1210 	return server;  in nfs4_create_server()
1213 	nfs_free_server(server);  in nfs4_create_server()
1218  * Create an NFS4 referral server record
1237 	struct nfs_server *server;  in nfs4_create_referral_server()  local
1241 	server = nfs_alloc_server();  in nfs4_create_referral_server()
1242 	if (!server)  in nfs4_create_referral_server()
1245 	server->cred = get_cred(parent_server->cred);  in nfs4_create_referral_server()
1247 	/* Initialise the client representation from the parent server */  in nfs4_create_referral_server()
1248 	nfs_server_copy_userdata(server, parent_server);  in nfs4_create_referral_server()
1254 	error = nfs4_set_client(server, &cl_init);  in nfs4_create_referral_server()
1263 	error = nfs4_set_client(server, &cl_init);  in nfs4_create_referral_server()
1270 	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout,  in nfs4_create_referral_server()
1277 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_referral_server()
1281 	return server;  in nfs4_create_referral_server()
1284 	nfs_free_server(server);  in nfs4_create_referral_server()
1291  * @server: represents FSID to be moved
1303 int nfs4_update_server(struct nfs_server *server, const char *hostname,  in nfs4_update_server()  argument
1306 	struct nfs_client *clp = server->nfs_client;  in nfs4_update_server()
1307 	struct rpc_clnt *clnt = server->client;  in nfs4_update_server()
1345 	nfs_server_remove_lists(server);  in nfs4_update_server()
1346 	set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1347 	error = nfs4_set_client(server, &cl_init);  in nfs4_update_server()
1348 	clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1350 		nfs_server_insert_lists(server);  in nfs4_update_server()
1355 	if (server->nfs_client->cl_hostname == NULL) {  in nfs4_update_server()
1356 		server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);  in nfs4_update_server()
1357 		if (server->nfs_client->cl_hostname == NULL)  in nfs4_update_server()
1360 	nfs_server_insert_lists(server);  in nfs4_update_server()
1362 	return nfs_probe_server(server, NFS_FH(d_inode(server->super->s_root)));  in nfs4_update_server()