48  * Per auth flavor data server rpc clients
129  * Find or create a DS rpc client with th MDS server rpc client auth flavor
237 	 * Set up the connection to the server before we add add to the  in nfs4_alloc_client()
384 	 * The create session reply races with the server back  in nfs41_init_client()
486  * "drop," but server trunking discovery claims "drop" and "keep" are
487  * actually the same server.  Swap the callback IDs so that "keep"
488  * will continue to use the callback ident the server now knows about,
573  * nfs40_walk_client_list - Find server that recognizes a client ID
610 		 * caused the server to return a new cl_confirm.  So if  in nfs40_walk_client_list()
612 		 * server that just returned the same cl_confirm by  in nfs40_walk_client_list()
621 		 * if new and pos point to the same server:  in nfs40_walk_client_list()
658 	/* No match found. The server lost our clientid */  in nfs40_walk_client_list()
666  * Returns true if the server major ids match
678  * Returns true if the server scopes match
740  * nfs41_walk_client_list - Find nfs_client that matches a client/server owner
795 static void nfs4_destroy_server(struct nfs_server *server)  in nfs4_destroy_server()  argument
799 	nfs_server_return_all_delegations(server);  in nfs4_destroy_server()
800 	unset_pnfs_layoutdriver(server);  in nfs4_destroy_server()
801 	nfs4_purge_state_owners(server, &freeme);  in nfs4_destroy_server()
895 static int nfs4_set_client(struct nfs_server *server,  in nfs4_set_client()  argument
916 		.cred = server->cred,  in nfs4_set_client()
932 	if (server->flags & NFS_MOUNT_NORESVPORT)  in nfs4_set_client()
934 	if (server->options & NFS_OPTION_MIGRATION)  in nfs4_set_client()
936 	if (test_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status))  in nfs4_set_client()
938 	server->port = rpc_get_port((struct sockaddr *)addr);  in nfs4_set_client()
945 	if (server->nfs_client == clp) {  in nfs4_set_client()
959 	server->nfs_client = clp;  in nfs4_set_client()
960 	nfs_sysfs_add_server(server);  in nfs4_set_client()
961 	nfs_sysfs_link_rpc_client(server, clp->cl_rpcclient, "_state");  in nfs4_set_client()
967  * Set up a pNFS Data Server client.
969  * Return any existing nfs_client that matches server address,port,version
1032 static void nfs4_session_limit_rwsize(struct nfs_server *server)  in nfs4_session_limit_rwsize()  argument
1039 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_rwsize()
1041 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_rwsize()
1045 	if (server->dtsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1046 		server->dtsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1047 	if (server->rsize > server_resp_sz)  in nfs4_session_limit_rwsize()
1048 		server->rsize = server_resp_sz;  in nfs4_session_limit_rwsize()
1049 	if (server->wsize > server_rqst_sz)  in nfs4_session_limit_rwsize()
1050 		server->wsize = server_rqst_sz;  in nfs4_session_limit_rwsize()
1057 static void nfs4_session_limit_xasize(struct nfs_server *server)  in nfs4_session_limit_xasize()  argument
1065 	if (!nfs4_has_session(server->nfs_client))  in nfs4_session_limit_xasize()
1068 	sess = server->nfs_client->cl_session;  in nfs4_session_limit_xasize()
1075 	if (server->gxasize > server_gxa_sz)  in nfs4_session_limit_xasize()
1076 		server->gxasize = server_gxa_sz;  in nfs4_session_limit_xasize()
1077 	if (server->sxasize > server_sxa_sz)  in nfs4_session_limit_xasize()
1078 		server->sxasize = server_sxa_sz;  in nfs4_session_limit_xasize()
1079 	if (server->lxasize > server_lxa_sz)  in nfs4_session_limit_xasize()
1080 		server->lxasize = server_lxa_sz;  in nfs4_session_limit_xasize()
1084 void nfs4_server_set_init_caps(struct nfs_server *server)  in nfs4_server_set_init_caps()  argument
1087 	server->caps |= server->nfs_client->cl_mvops->init_caps;  in nfs4_server_set_init_caps()
1088 	if (server->flags & NFS_MOUNT_NORDIRPLUS)  in nfs4_server_set_init_caps()
1089 			server->caps &= ~NFS_CAP_READDIRPLUS;  in nfs4_server_set_init_caps()
1090 	if (server->nfs_client->cl_proto == XPRT_TRANSPORT_RDMA)  in nfs4_server_set_init_caps()
1091 		server->caps &= ~NFS_CAP_READ_PLUS;  in nfs4_server_set_init_caps()
1098 			server->client->cl_auth->au_flavor == RPC_AUTH_UNIX)  in nfs4_server_set_init_caps()
1099 		server->caps |= NFS_CAP_UIDGID_NOMAP;  in nfs4_server_set_init_caps()
1102 static int nfs4_server_common_setup(struct nfs_server *server,  in nfs4_server_common_setup()  argument
1108 	if (is_ds_only_client(server->nfs_client))  in nfs4_server_common_setup()
1112 	error = nfs4_init_session(server->nfs_client);  in nfs4_server_common_setup()
1116 	nfs4_server_set_init_caps(server);  in nfs4_server_common_setup()
1119 	error = nfs4_get_rootfh(server, mntfh, auth_probe);  in nfs4_server_common_setup()
1123 	dprintk("Server FSID: %llx:%llx\n",  in nfs4_server_common_setup()
1124 			(unsigned long long) server->fsid.major,  in nfs4_server_common_setup()
1125 			(unsigned long long) server->fsid.minor);  in nfs4_server_common_setup()
1128 	error = nfs_probe_server(server, mntfh);  in nfs4_server_common_setup()
1132 	nfs4_session_limit_rwsize(server);  in nfs4_server_common_setup()
1133 	nfs4_session_limit_xasize(server);  in nfs4_server_common_setup()
1135 	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)  in nfs4_server_common_setup()
1136 		server->namelen = NFS4_MAXNAMLEN;  in nfs4_server_common_setup()
1138 	nfs_server_insert_lists(server);  in nfs4_server_common_setup()
1139 	server->mount_time = jiffies;  in nfs4_server_common_setup()
1140 	server->destroy = nfs4_destroy_server;  in nfs4_server_common_setup()
1148 static int nfs4_init_server(struct nfs_server *server, struct fs_context *fc)  in nfs4_init_server()  argument
1158 	server->flags = ctx->flags;  in nfs4_init_server()
1159 	server->options = ctx->options;  in nfs4_init_server()
1160 	server->auth_info = ctx->auth_info;  in nfs4_init_server()
1163 	 * allowed by the server, use the SECINFO path to try the  in nfs4_init_server()
1171 	error = nfs4_set_client(server,  in nfs4_init_server()
1187 		server->rsize = nfs_io_size(ctx->rsize, server->nfs_client->cl_proto);  in nfs4_init_server()
1189 		server->wsize = nfs_io_size(ctx->wsize, server->nfs_client->cl_proto);  in nfs4_init_server()
1191 	server->acregmin = ctx->acregmin * HZ;  in nfs4_init_server()
1192 	server->acregmax = ctx->acregmax * HZ;  in nfs4_init_server()
1193 	server->acdirmin = ctx->acdirmin * HZ;  in nfs4_init_server()
1194 	server->acdirmax = ctx->acdirmax * HZ;  in nfs4_init_server()
1195 	server->port     = ctx->nfs_server.port;  in nfs4_init_server()
1197 	return nfs_init_server_rpcclient(server, &timeparms,  in nfs4_init_server()
1203  * - keyed on server and FSID
1208 	struct nfs_server *server;  in nfs4_create_server()  local
1212 	server = nfs_alloc_server();  in nfs4_create_server()
1213 	if (!server)  in nfs4_create_server()
1216 	server->cred = get_cred(fc->cred);  in nfs4_create_server()
1221 	error = nfs4_init_server(server, fc);  in nfs4_create_server()
1225 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_server()
1229 	return server;  in nfs4_create_server()
1232 	nfs_free_server(server);  in nfs4_create_server()
1237  * Create an NFS4 referral server record
1243 	struct nfs_server *server, *parent_server;  in nfs4_create_referral_server()  local
1247 	server = nfs_alloc_server();  in nfs4_create_referral_server()
1248 	if (!server)  in nfs4_create_referral_server()
1254 	server->cred = get_cred(parent_server->cred);  in nfs4_create_referral_server()
1256 	/* Initialise the client representation from the parent server */  in nfs4_create_referral_server()
1257 	nfs_server_copy_userdata(server, parent_server);  in nfs4_create_referral_server()
1262 	error = nfs4_set_client(server,  in nfs4_create_referral_server()
1282 	error = nfs4_set_client(server,  in nfs4_create_referral_server()
1300 	error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout,  in nfs4_create_referral_server()
1307 	error = nfs4_server_common_setup(server, ctx->mntfh, auth_probe);  in nfs4_create_referral_server()
1311 	return server;  in nfs4_create_referral_server()
1314 	nfs_free_server(server);  in nfs4_create_referral_server()
1321  * @server: represents FSID to be moved
1333 int nfs4_update_server(struct nfs_server *server, const char *hostname,  in nfs4_update_server()  argument
1336 	struct nfs_client *clp = server->nfs_client;  in nfs4_update_server()
1337 	struct rpc_clnt *clnt = server->client;  in nfs4_update_server()
1362 	nfs_server_remove_lists(server);  in nfs4_update_server()
1363 	set_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1364 	error = nfs4_set_client(server, hostname, sap, salen, buf,  in nfs4_update_server()
1369 	clear_bit(NFS_MIG_TSM_POSSIBLE, &server->mig_status);  in nfs4_update_server()
1371 		nfs_server_insert_lists(server);  in nfs4_update_server()
1376 	if (server->nfs_client->cl_hostname == NULL) {  in nfs4_update_server()
1377 		server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);  in nfs4_update_server()
1378 		if (server->nfs_client->cl_hostname == NULL)  in nfs4_update_server()
1381 	nfs_server_insert_lists(server);  in nfs4_update_server()
1383 	return nfs_probe_server(server, NFS_FH(d_inode(server->super->s_root)));  in nfs4_update_server()