47  * Per auth flavor data server rpc clients
128  * Find or create a DS rpc client with th MDS server rpc client auth flavor
235 	 * Set up the connection to the server before we add add to the  in nfs4_alloc_client()
381 	 * The create session reply races with the server back  in nfs41_init_client()
481  * "drop," but server trunking discovery claims "drop" and "keep" are
482  * actually the same server.  Swap the callback IDs so that "keep"
483  * will continue to use the callback ident the server now knows about,
568  * nfs40_walk_client_list - Find server that recognizes a client ID
605 		 * caused the server to return a new cl_confirm.  So if  in nfs40_walk_client_list()
607 		 * server that just returned the same cl_confirm by  in nfs40_walk_client_list()
616 		 * if new and pos point to the same server:  in nfs40_walk_client_list()
653 	/* No match found. The server lost our clientid */  in nfs40_walk_client_list()
661  * Returns true if the server major ids match
673  * Returns true if the server scopes match
735  * nfs41_walk_client_list - Find nfs_client that matches a client/server owner
790 static void nfs4_destroy_server(struct nfs_server *server)  in nfs4_destroy_server()  argument
794 	nfs_server_return_all_delegations(server);  in nfs4_destroy_server()
795 	unset_pnfs_layoutdriver(server);  in nfs4_destroy_server()
796 	nfs4_purge_state_owners(server, &freeme);  in nfs4_destroy_server()
890 static int nfs4_set_client(struct nfs_server *server,  in nfs4_set_client()  argument
910 		.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(addr);  in nfs4_set_client()
934 	if (server->nfs_client == clp) {  in nfs4_set_client()
948 	server->nfs_client = clp;  in nfs4_set_client()
953  * Set up a pNFS Data Server client.
955  * Return any existing nfs_client that matches server address,port,version
1010 static void nfs4_session_limit_rwsize(struct nfs_server *server)  in nfs4_session_limit_rwsize()  argument
1017 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_rwsize()
1019 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_rwsize()
1023 	if (server->dtsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1024 		server->dtsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1025 	if (server->rsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1026 		server->rsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1027 	if (server->wsize > server_rqst_sz)  in nfs4_session_limit_rwsize()
1028 		server->wsize = server_rqst_sz;  in nfs4_session_limit_rwsize()
1035 static void nfs4_session_limit_xasize(struct nfs_server *server)  in nfs4_session_limit_xasize()  argument
1043 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_xasize()
1046 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_xasize()
1053 	if (server->gxasize > server_gxa_sz)  in nfs4_session_limit_xasize()
1054 		server->gxasize = server_gxa_sz;  in nfs4_session_limit_xasize()
1055 	if (server->sxasize > server_sxa_sz)  in nfs4_session_limit_xasize()
1056 		server->sxasize = server_sxa_sz;  in nfs4_session_limit_xasize()
1057 	if (server->lxasize > server_lxa_sz)  in nfs4_session_limit_xasize()
1058 		server->lxasize = server_lxa_sz;  in nfs4_session_limit_xasize()
1062 static int nfs4_server_common_setup(struct nfs_server *server,  in nfs4_server_common_setup()  argument
1069 	if (is_ds_only_client(server->nfs_client))  in nfs4_server_common_setup()
1077 	error = nfs4_init_session(server->nfs_client);  in nfs4_server_common_setup()
1082 	server->caps |= server->nfs_client->cl_mvops->init_caps;  in nfs4_server_common_setup()
1083 	if (server->flags & NFS_MOUNT_NORDIRPLUS)  in nfs4_server_common_setup()
1084 			server->caps &= ~NFS_CAP_READDIRPLUS;  in nfs4_server_common_setup()
1085 	if (server->nfs_client->cl_proto == XPRT_TRANSPORT_RDMA)  in nfs4_server_common_setup()
1086 		server->caps &= ~NFS_CAP_READ_PLUS;  in nfs4_server_common_setup()
1092 			server->client->cl_auth->au_flavor == RPC_AUTH_UNIX)  in nfs4_server_common_setup()
1093 		server->caps |= NFS_CAP_UIDGID_NOMAP;  in nfs4_server_common_setup()
1097 	error = nfs4_get_rootfh(server, mntfh, auth_probe);  in nfs4_server_common_setup()
1101 	dprintk("Server FSID: %llx:%llx\n",  in nfs4_server_common_setup()
1102 			(unsigned long long) server->fsid.major,  in nfs4_server_common_setup()
1103 			(unsigned long long) server->fsid.minor);  in nfs4_server_common_setup()
1106 	error = nfs_probe_fsinfo(server, mntfh, fattr);  in nfs4_server_common_setup()
1110 	nfs4_session_limit_rwsize(server);  in nfs4_server_common_setup()
1111 	nfs4_session_limit_xasize(server);  in nfs4_server_common_setup()
1113 	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)  in nfs4_server_common_setup()
1114 		server->namelen = NFS4_MAXNAMLEN;  in nfs4_server_common_setup()
1116 	nfs_server_insert_lists(server);  in nfs4_server_common_setup()
1117 	server->mount_time = jiffies;  in nfs4_server_common_setup()
1118 	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
1137 	server->flags = ctx->flags;  in nfs4_init_server()
1138 	server->options = ctx->options;  in nfs4_init_server()
1139 	server->auth_info = ctx->auth_info;  in nfs4_init_server()
1142 	 * allowed by the server, use the SECINFO path to try the  in nfs4_init_server()
1150 	error = nfs4_set_client(server,  in nfs4_init_server()
1165 		server->rsize = nfs_block_size(ctx->rsize, NULL);  in nfs4_init_server()
1167 		server->wsize = nfs_block_size(ctx->wsize, NULL);  in nfs4_init_server()
1169 	server->acregmin = ctx->acregmin * HZ;  in nfs4_init_server()
1170 	server->acregmax = ctx->acregmax * HZ;  in nfs4_init_server()
1171 	server->acdirmin = ctx->acdirmin * HZ;  in nfs4_init_server()
1172 	server->acdirmax = ctx->acdirmax * HZ;  in nfs4_init_server()
1173 	server->port     = ctx->nfs_server.port;  in nfs4_init_server()
1175 	return nfs_init_server_rpcclient(server, &timeparms,  in nfs4_init_server()
1181  * - keyed on server and FSID
1186 	struct nfs_server *server;  in nfs4_create_server()  local
1190 	server = nfs_alloc_server();  in nfs4_create_server()
1191 	if (!server)  in nfs4_create_server()
1194 	server->cred = get_cred(fc->cred);  in nfs4_create_server()
1199 	error = nfs4_init_server(server, fc);  in nfs4_create_server()
1203 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_server()
1207 	return server;  in nfs4_create_server()
1210 	nfs_free_server(server);  in nfs4_create_server()
1215  * Create an NFS4 referral server record
1221 	struct nfs_server *server, *parent_server;  in nfs4_create_referral_server()  local
1225 	server = nfs_alloc_server();  in nfs4_create_referral_server()
1226 	if (!server)  in nfs4_create_referral_server()
1232 	server->cred = get_cred(parent_server->cred);  in nfs4_create_referral_server()
1234 	/* Initialise the client representation from the parent server */  in nfs4_create_referral_server()
1235 	nfs_server_copy_userdata(server, parent_server);  in nfs4_create_referral_server()
1240 	error = nfs4_set_client(server,  in nfs4_create_referral_server()
1256 	error = nfs4_set_client(server,  in nfs4_create_referral_server()
1273 	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout,  in nfs4_create_referral_server()
1280 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_referral_server()
1284 	return server;  in nfs4_create_referral_server()
1287 	nfs_free_server(server);  in nfs4_create_referral_server()
1297 static int nfs_probe_destination(struct nfs_server *server)  in nfs_probe_destination()  argument
1299 	struct inode *inode = d_inode(server->super->s_root);  in nfs_probe_destination()
1307 	/* Sanity: the probe won't work if the destination server  in nfs_probe_destination()
1309 	error = nfs_probe_fsinfo(server, NFS_FH(inode), fattr);  in nfs_probe_destination()
1318  * @server: represents FSID to be moved
1330 int nfs4_update_server(struct nfs_server *server, const char *hostname,  in nfs4_update_server()  argument
1333 	struct nfs_client *clp = server->nfs_client;  in nfs4_update_server()
1334 	struct rpc_clnt *clnt = server->client;  in nfs4_update_server()
1358 	nfs_server_remove_lists(server);  in nfs4_update_server()
1359 	set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1360 	error = nfs4_set_client(server, hostname, sap, salen, buf,  in nfs4_update_server()
1364 	clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1366 		nfs_server_insert_lists(server);  in nfs4_update_server()
1371 	if (server->nfs_client->cl_hostname == NULL)  in nfs4_update_server()
1372 		server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);  in nfs4_update_server()
1373 	nfs_server_insert_lists(server);  in nfs4_update_server()
1375 	return nfs_probe_destination(server);  in nfs4_update_server()