216 static void pnfs_init_server(struct nfs_server *server)  in pnfs_init_server()  argument
218 	rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");  in pnfs_init_server()
230 static void pnfs_init_server(struct nfs_server *server)  in pnfs_init_server()  argument
444  * Mark a server as ready or failed
552 static void nfs_destroy_server(struct nfs_server *server)  in nfs_destroy_server()  argument
554 	if (server->nlm_host)  in nfs_destroy_server()
555 		nlmclnt_done(server->nlm_host);  in nfs_destroy_server()
561 static int nfs_start_lockd(struct nfs_server *server)  in nfs_start_lockd()  argument
564 	struct nfs_client *clp = server->nfs_client;  in nfs_start_lockd()
570 		.noresvport	= server->flags & NFS_MOUNT_NORESVPORT ?  in nfs_start_lockd()
574 		.cred		= server->cred,  in nfs_start_lockd()
579 	if ((server->flags & NFS_MOUNT_LOCAL_FLOCK) &&  in nfs_start_lockd()
580 			(server->flags & NFS_MOUNT_LOCAL_FCNTL))  in nfs_start_lockd()
597 	server->nlm_host = host;  in nfs_start_lockd()
598 	server->destroy = nfs_destroy_server;  in nfs_start_lockd()
605 int nfs_init_server_rpcclient(struct nfs_server *server,  in nfs_init_server_rpcclient()  argument
609 	struct nfs_client *clp = server->nfs_client;  in nfs_init_server_rpcclient()
611 	server->client = rpc_clone_client_set_auth(clp->cl_rpcclient,  in nfs_init_server_rpcclient()
613 	if (IS_ERR(server->client)) {  in nfs_init_server_rpcclient()
615 		return PTR_ERR(server->client);  in nfs_init_server_rpcclient()
618 	memcpy(&server->client->cl_timeout_default,  in nfs_init_server_rpcclient()
620 			sizeof(server->client->cl_timeout_default));  in nfs_init_server_rpcclient()
621 	server->client->cl_timeout = &server->client->cl_timeout_default;  in nfs_init_server_rpcclient()
622 	server->client->cl_softrtry = 0;  in nfs_init_server_rpcclient()
623 	if (server->flags & NFS_MOUNT_SOFTERR)  in nfs_init_server_rpcclient()
624 		server->client->cl_softerr = 1;  in nfs_init_server_rpcclient()
625 	if (server->flags & NFS_MOUNT_SOFT)  in nfs_init_server_rpcclient()
626 		server->client->cl_softrtry = 1;  in nfs_init_server_rpcclient()
666 static int nfs_init_server(struct nfs_server *server,  in nfs_init_server()  argument
679 		.cred = server->cred,  in nfs_init_server()
696 	server->nfs_client = clp;  in nfs_init_server()
699 	server->flags = ctx->flags;  in nfs_init_server()
700 	server->options = ctx->options;  in nfs_init_server()
701 	server->caps |= NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS;  in nfs_init_server()
705 		server->fattr_valid = NFS_ATTR_FATTR_V2;  in nfs_init_server()
708 		server->fattr_valid = NFS_ATTR_FATTR_V3;  in nfs_init_server()
711 		server->fattr_valid = NFS_ATTR_FATTR_V4;  in nfs_init_server()
715 		server->rsize = nfs_block_size(ctx->rsize, NULL);  in nfs_init_server()
717 		server->wsize = nfs_block_size(ctx->wsize, NULL);  in nfs_init_server()
719 	server->acregmin = ctx->acregmin * HZ;  in nfs_init_server()
720 	server->acregmax = ctx->acregmax * HZ;  in nfs_init_server()
721 	server->acdirmin = ctx->acdirmin * HZ;  in nfs_init_server()
722 	server->acdirmax = ctx->acdirmax * HZ;  in nfs_init_server()
725 	error = nfs_start_lockd(server);  in nfs_init_server()
729 	server->port = ctx->nfs_server.port;  in nfs_init_server()
730 	server->auth_info = ctx->auth_info;  in nfs_init_server()
732 	error = nfs_init_server_rpcclient(server, &timeparms,  in nfs_init_server()
739 		memcpy(&server->mountd_address, &ctx->mount_server.address,  in nfs_init_server()
741 		server->mountd_addrlen = ctx->mount_server.addrlen;  in nfs_init_server()
743 	server->mountd_version = ctx->mount_server.version;  in nfs_init_server()
744 	server->mountd_port = ctx->mount_server.port;  in nfs_init_server()
745 	server->mountd_protocol = ctx->mount_server.protocol;  in nfs_init_server()
747 	server->namelen  = ctx->namlen;  in nfs_init_server()
751 	server->nfs_client = NULL;  in nfs_init_server()
757  * Load up the server record from information gained in an fsinfo record
759 static void nfs_server_set_fsinfo(struct nfs_server *server,  in nfs_server_set_fsinfo()  argument
765 	if (server->rsize == 0)  in nfs_server_set_fsinfo()
766 		server->rsize = nfs_block_size(fsinfo->rtpref, NULL);  in nfs_server_set_fsinfo()
767 	if (server->wsize == 0)  in nfs_server_set_fsinfo()
768 		server->wsize = nfs_block_size(fsinfo->wtpref, NULL);  in nfs_server_set_fsinfo()
770 	if (fsinfo->rtmax >= 512 && server->rsize > fsinfo->rtmax)  in nfs_server_set_fsinfo()
771 		server->rsize = nfs_block_size(fsinfo->rtmax, NULL);  in nfs_server_set_fsinfo()
772 	if (fsinfo->wtmax >= 512 && server->wsize > fsinfo->wtmax)  in nfs_server_set_fsinfo()
773 		server->wsize = nfs_block_size(fsinfo->wtmax, NULL);  in nfs_server_set_fsinfo()
775 	raw_max_rpc_payload = rpc_max_payload(server->client);  in nfs_server_set_fsinfo()
778 	if (server->rsize > max_rpc_payload)  in nfs_server_set_fsinfo()
779 		server->rsize = max_rpc_payload;  in nfs_server_set_fsinfo()
780 	if (server->rsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
781 		server->rsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
782 	server->rpages = (server->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT;  in nfs_server_set_fsinfo()
784 	if (server->wsize > max_rpc_payload)  in nfs_server_set_fsinfo()
785 		server->wsize = max_rpc_payload;  in nfs_server_set_fsinfo()
786 	if (server->wsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
787 		server->wsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
788 	server->wpages = (server->wsize + PAGE_SIZE - 1) >> PAGE_SHIFT;  in nfs_server_set_fsinfo()
790 	server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL);  in nfs_server_set_fsinfo()
792 	server->dtsize = nfs_block_size(fsinfo->dtpref, NULL);  in nfs_server_set_fsinfo()
793 	if (server->dtsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
794 		server->dtsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
795 	if (server->dtsize > server->rsize)  in nfs_server_set_fsinfo()
796 		server->dtsize = server->rsize;  in nfs_server_set_fsinfo()
798 	if (server->flags & NFS_MOUNT_NOAC) {  in nfs_server_set_fsinfo()
799 		server->acregmin = server->acregmax = 0;  in nfs_server_set_fsinfo()
800 		server->acdirmin = server->acdirmax = 0;  in nfs_server_set_fsinfo()
803 	server->maxfilesize = fsinfo->maxfilesize;  in nfs_server_set_fsinfo()
805 	server->time_delta = fsinfo->time_delta;  in nfs_server_set_fsinfo()
806 	server->change_attr_type = fsinfo->change_attr_type;  in nfs_server_set_fsinfo()
808 	server->clone_blksize = fsinfo->clone_blksize;  in nfs_server_set_fsinfo()
810 	rpc_setbufsize(server->client, server->wsize + 100, server->rsize + 100);  in nfs_server_set_fsinfo()
816 	server->gxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
818 	server->sxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
820 	server->lxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
824 		server->caps |= NFS_CAP_XATTR;  in nfs_server_set_fsinfo()
831 int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs_fattr *fattr)  in nfs_probe_fsinfo()  argument
834 	struct nfs_client *clp = server->nfs_client;  in nfs_probe_fsinfo()
838 		error = clp->rpc_ops->set_capabilities(server, mntfh);  in nfs_probe_fsinfo()
846 	error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo);  in nfs_probe_fsinfo()
850 	nfs_server_set_fsinfo(server, &fsinfo);  in nfs_probe_fsinfo()
853 	if (server->namelen == 0) {  in nfs_probe_fsinfo()
859 		if (clp->rpc_ops->pathconf(server, mntfh, &pathinfo) >= 0)  in nfs_probe_fsinfo()
860 			server->namelen = pathinfo.max_namelen;  in nfs_probe_fsinfo()
868  * Copy useful information when duplicating a server record
886 void nfs_server_insert_lists(struct nfs_server *server)  in nfs_server_insert_lists()  argument
888 	struct nfs_client *clp = server->nfs_client;  in nfs_server_insert_lists()
892 	list_add_tail_rcu(&server->client_link, &clp->cl_superblocks);  in nfs_server_insert_lists()
893 	list_add_tail(&server->master_link, &nn->nfs_volume_list);  in nfs_server_insert_lists()
900 void nfs_server_remove_lists(struct nfs_server *server)  in nfs_server_remove_lists()  argument
902 	struct nfs_client *clp = server->nfs_client;  in nfs_server_remove_lists()
909 	list_del_rcu(&server->client_link);  in nfs_server_remove_lists()
912 	list_del(&server->master_link);  in nfs_server_remove_lists()
920  * Allocate and initialise a server record
924 	struct nfs_server *server;  in nfs_alloc_server()  local
926 	server = kzalloc(sizeof(struct nfs_server), GFP_KERNEL);  in nfs_alloc_server()
927 	if (!server)  in nfs_alloc_server()
930 	server->client = server->client_acl = ERR_PTR(-EINVAL);  in nfs_alloc_server()
933 	INIT_LIST_HEAD(&server->client_link);  in nfs_alloc_server()
934 	INIT_LIST_HEAD(&server->master_link);  in nfs_alloc_server()
935 	INIT_LIST_HEAD(&server->delegations);  in nfs_alloc_server()
936 	INIT_LIST_HEAD(&server->layouts);  in nfs_alloc_server()
937 	INIT_LIST_HEAD(&server->state_owners_lru);  in nfs_alloc_server()
938 	INIT_LIST_HEAD(&server->ss_copies);  in nfs_alloc_server()
940 	atomic_set(&server->active, 0);  in nfs_alloc_server()
942 	server->io_stats = nfs_alloc_iostats();  in nfs_alloc_server()
943 	if (!server->io_stats) {  in nfs_alloc_server()
944 		kfree(server);  in nfs_alloc_server()
948 	server->change_attr_type = NFS4_CHANGE_TYPE_IS_UNDEFINED;  in nfs_alloc_server()
950 	ida_init(&server->openowner_id);  in nfs_alloc_server()
951 	ida_init(&server->lockowner_id);  in nfs_alloc_server()
952 	pnfs_init_server(server);  in nfs_alloc_server()
953 	rpc_init_wait_queue(&server->uoc_rpcwaitq, "NFS UOC");  in nfs_alloc_server()
955 	return server;  in nfs_alloc_server()
960  * Free up a server record
962 void nfs_free_server(struct nfs_server *server)  in nfs_free_server()  argument
964 	nfs_server_remove_lists(server);  in nfs_free_server()
966 	if (server->destroy != NULL)  in nfs_free_server()
967 		server->destroy(server);  in nfs_free_server()
969 	if (!IS_ERR(server->client_acl))  in nfs_free_server()
970 		rpc_shutdown_client(server->client_acl);  in nfs_free_server()
971 	if (!IS_ERR(server->client))  in nfs_free_server()
972 		rpc_shutdown_client(server->client);  in nfs_free_server()
974 	nfs_put_client(server->nfs_client);  in nfs_free_server()
976 	ida_destroy(&server->lockowner_id);  in nfs_free_server()
977 	ida_destroy(&server->openowner_id);  in nfs_free_server()
978 	nfs_free_iostats(server->io_stats);  in nfs_free_server()
979 	put_cred(server->cred);  in nfs_free_server()
980 	kfree(server);  in nfs_free_server()
987  * - keyed on server and FSID
992 	struct nfs_server *server;  in nfs_create_server()  local
996 	server = nfs_alloc_server();  in nfs_create_server()
997 	if (!server)  in nfs_create_server()
1000 	server->cred = get_cred(fc->cred);  in nfs_create_server()
1008 	error = nfs_init_server(server, fc);  in nfs_create_server()
1013 	error = nfs_probe_fsinfo(server, ctx->mntfh, fattr);  in nfs_create_server()
1016 	if (server->nfs_client->rpc_ops->version == 3) {  in nfs_create_server()
1017 		if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)  in nfs_create_server()
1018 			server->namelen = NFS3_MAXNAMLEN;  in nfs_create_server()
1020 			server->caps |= NFS_CAP_READDIRPLUS;  in nfs_create_server()
1022 		if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)  in nfs_create_server()
1023 			server->namelen = NFS2_MAXNAMLEN;  in nfs_create_server()
1027 		error = ctx->nfs_mod->rpc_ops->getattr(server, ctx->mntfh,  in nfs_create_server()
1034 	memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));  in nfs_create_server()
1036 	dprintk("Server FSID: %llx:%llx\n",  in nfs_create_server()
1037 		(unsigned long long) server->fsid.major,  in nfs_create_server()
1038 		(unsigned long long) server->fsid.minor);  in nfs_create_server()
1040 	nfs_server_insert_lists(server);  in nfs_create_server()
1041 	server->mount_time = jiffies;  in nfs_create_server()
1043 	return server;  in nfs_create_server()
1047 	nfs_free_server(server);  in nfs_create_server()
1053  * Clone an NFS2, NFS3 or NFS4 server record
1060 	struct nfs_server *server;  in nfs_clone_server()  local
1064 	server = nfs_alloc_server();  in nfs_clone_server()
1065 	if (!server)  in nfs_clone_server()
1068 	server->cred = get_cred(source->cred);  in nfs_clone_server()
1076 	server->nfs_client = source->nfs_client;  in nfs_clone_server()
1077 	server->destroy = source->destroy;  in nfs_clone_server()
1078 	refcount_inc(&server->nfs_client->cl_count);  in nfs_clone_server()
1079 	nfs_server_copy_userdata(server, source);  in nfs_clone_server()
1081 	server->fsid = fattr->fsid;  in nfs_clone_server()
1083 	error = nfs_init_server_rpcclient(server,  in nfs_clone_server()
1089 	/* probe the filesystem info for this server filesystem */  in nfs_clone_server()
1090 	error = nfs_probe_fsinfo(server, fh, fattr_fsinfo);  in nfs_clone_server()
1094 	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)  in nfs_clone_server()
1095 		server->namelen = NFS4_MAXNAMLEN;  in nfs_clone_server()
1097 	error = nfs_start_lockd(server);  in nfs_clone_server()
1101 	nfs_server_insert_lists(server);  in nfs_clone_server()
1102 	server->mount_time = jiffies;  in nfs_clone_server()
1105 	return server;  in nfs_clone_server()
1109 	nfs_free_server(server);  in nfs_clone_server()
1165  * set up the iterator to start reading from the server list and return the first item
1178  * move to next server
1208 		seq_puts(m, "NV SERVER   PORT USE HOSTNAME\n");  in nfs_server_list_show()
1270 	struct nfs_server *server;  in nfs_volume_list_show()  local
1278 		seq_puts(m, "NV SERVER   PORT DEV          FSID"  in nfs_volume_list_show()
1283 	server = list_entry(v, struct nfs_server, master_link);  in nfs_volume_list_show()
1284 	clp = server->nfs_client;  in nfs_volume_list_show()
1287 		 MAJOR(server->s_dev), MINOR(server->s_dev));  in nfs_volume_list_show()
1290 		 (unsigned long long) server->fsid.major,  in nfs_volume_list_show()
1291 		 (unsigned long long) server->fsid.minor);  in nfs_volume_list_show()
1300 		   nfs_server_fscache_state(server));  in nfs_volume_list_show()