222 static void pnfs_init_server(struct nfs_server *server)  in pnfs_init_server()  argument
224 	rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");  in pnfs_init_server()
236 static void pnfs_init_server(struct nfs_server *server)  in pnfs_init_server()  argument
580 static void nfs_destroy_server(struct nfs_server *server)  in nfs_destroy_server()  argument
582 	if (server->nlm_host)  in nfs_destroy_server()
583 		nlmclnt_done(server->nlm_host);  in nfs_destroy_server()
589 static int nfs_start_lockd(struct nfs_server *server)  in nfs_start_lockd()  argument
592 	struct nfs_client *clp = server->nfs_client;  in nfs_start_lockd()
598 		.noresvport	= server->flags & NFS_MOUNT_NORESVPORT ?  in nfs_start_lockd()
602 		.cred		= server->cred,  in nfs_start_lockd()
607 	if ((server->flags & NFS_MOUNT_LOCAL_FLOCK) &&  in nfs_start_lockd()
608 			(server->flags & NFS_MOUNT_LOCAL_FCNTL))  in nfs_start_lockd()
625 	server->nlm_host = host;  in nfs_start_lockd()
626 	server->destroy = nfs_destroy_server;  in nfs_start_lockd()
627 	nfs_sysfs_link_rpc_client(server, nlmclnt_rpc_clnt(host), NULL);  in nfs_start_lockd()
634 int nfs_init_server_rpcclient(struct nfs_server *server,  in nfs_init_server_rpcclient()  argument
638 	struct nfs_client *clp = server->nfs_client;  in nfs_init_server_rpcclient()
640 	server->client = rpc_clone_client_set_auth(clp->cl_rpcclient,  in nfs_init_server_rpcclient()
642 	if (IS_ERR(server->client)) {  in nfs_init_server_rpcclient()
644 		return PTR_ERR(server->client);  in nfs_init_server_rpcclient()
647 	memcpy(&server->client->cl_timeout_default,  in nfs_init_server_rpcclient()
649 			sizeof(server->client->cl_timeout_default));  in nfs_init_server_rpcclient()
650 	server->client->cl_timeout = &server->client->cl_timeout_default;  in nfs_init_server_rpcclient()
651 	server->client->cl_softrtry = 0;  in nfs_init_server_rpcclient()
652 	if (server->flags & NFS_MOUNT_SOFTERR)  in nfs_init_server_rpcclient()
653 		server->client->cl_softerr = 1;  in nfs_init_server_rpcclient()
654 	if (server->flags & NFS_MOUNT_SOFT)  in nfs_init_server_rpcclient()
655 		server->client->cl_softrtry = 1;  in nfs_init_server_rpcclient()
657 	nfs_sysfs_link_rpc_client(server, server->client, NULL);  in nfs_init_server_rpcclient()
693 static void nfs4_server_set_init_caps(struct nfs_server *server)  in nfs4_server_set_init_caps()  argument
697 	server->caps = server->nfs_client->cl_mvops->init_caps;  in nfs4_server_set_init_caps()
698 	if (server->flags & NFS_MOUNT_NORDIRPLUS)  in nfs4_server_set_init_caps()
699 		server->caps &= ~NFS_CAP_READDIRPLUS;  in nfs4_server_set_init_caps()
700 	if (server->nfs_client->cl_proto == XPRT_TRANSPORT_RDMA)  in nfs4_server_set_init_caps()
701 		server->caps &= ~NFS_CAP_READ_PLUS;  in nfs4_server_set_init_caps()
708 	    server->client->cl_auth->au_flavor == RPC_AUTH_UNIX)  in nfs4_server_set_init_caps()
709 		server->caps |= NFS_CAP_UIDGID_NOMAP;  in nfs4_server_set_init_caps()
713 void nfs_server_set_init_caps(struct nfs_server *server)  in nfs_server_set_init_caps()  argument
715 	switch (server->nfs_client->rpc_ops->version) {  in nfs_server_set_init_caps()
717 		server->caps = NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS;  in nfs_server_set_init_caps()
720 		server->caps = NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS;  in nfs_server_set_init_caps()
721 		if (!(server->flags & NFS_MOUNT_NORDIRPLUS))  in nfs_server_set_init_caps()
722 			server->caps |= NFS_CAP_READDIRPLUS;  in nfs_server_set_init_caps()
725 		nfs4_server_set_init_caps(server);  in nfs_server_set_init_caps()
734 static int nfs_init_server(struct nfs_server *server,  in nfs_init_server()  argument
747 		.cred = server->cred,  in nfs_init_server()
768 	server->nfs_client = clp;  in nfs_init_server()
769 	nfs_sysfs_add_server(server);  in nfs_init_server()
770 	nfs_sysfs_link_rpc_client(server, clp->cl_rpcclient, "_state");  in nfs_init_server()
773 	server->flags = ctx->flags;  in nfs_init_server()
774 	server->options = ctx->options;  in nfs_init_server()
778 		server->fattr_valid = NFS_ATTR_FATTR_V2;  in nfs_init_server()
781 		server->fattr_valid = NFS_ATTR_FATTR_V3;  in nfs_init_server()
784 		server->fattr_valid = NFS_ATTR_FATTR_V4;  in nfs_init_server()
788 		server->bsize = ctx->bsize;  in nfs_init_server()
789 		server->automount_inherit |= NFS_AUTOMOUNT_INHERIT_BSIZE;  in nfs_init_server()
792 		server->rsize = nfs_io_size(ctx->rsize, clp->cl_proto);  in nfs_init_server()
793 		server->automount_inherit |= NFS_AUTOMOUNT_INHERIT_RSIZE;  in nfs_init_server()
796 		server->wsize = nfs_io_size(ctx->wsize, clp->cl_proto);  in nfs_init_server()
797 		server->automount_inherit |= NFS_AUTOMOUNT_INHERIT_WSIZE;  in nfs_init_server()
800 	server->acregmin = ctx->acregmin * HZ;  in nfs_init_server()
801 	server->acregmax = ctx->acregmax * HZ;  in nfs_init_server()
802 	server->acdirmin = ctx->acdirmin * HZ;  in nfs_init_server()
803 	server->acdirmax = ctx->acdirmax * HZ;  in nfs_init_server()
806 	error = nfs_start_lockd(server);  in nfs_init_server()
810 	server->port = ctx->nfs_server.port;  in nfs_init_server()
811 	server->auth_info = ctx->auth_info;  in nfs_init_server()
813 	error = nfs_init_server_rpcclient(server, &timeparms,  in nfs_init_server()
818 	nfs_server_set_init_caps(server);  in nfs_init_server()
822 		memcpy(&server->mountd_address, &ctx->mount_server.address,  in nfs_init_server()
824 		server->mountd_addrlen = ctx->mount_server.addrlen;  in nfs_init_server()
826 	server->mountd_version = ctx->mount_server.version;  in nfs_init_server()
827 	server->mountd_port = ctx->mount_server.port;  in nfs_init_server()
828 	server->mountd_protocol = ctx->mount_server.protocol;  in nfs_init_server()
830 	server->namelen  = ctx->namlen;  in nfs_init_server()
834 	server->nfs_client = NULL;  in nfs_init_server()
842 static void nfs_server_set_fsinfo(struct nfs_server *server,  in nfs_server_set_fsinfo()  argument
845 	struct nfs_client *clp = server->nfs_client;  in nfs_server_set_fsinfo()
849 	if (server->rsize == 0)  in nfs_server_set_fsinfo()
850 		server->rsize = nfs_io_size(fsinfo->rtpref, clp->cl_proto);  in nfs_server_set_fsinfo()
851 	if (server->wsize == 0)  in nfs_server_set_fsinfo()
852 		server->wsize = nfs_io_size(fsinfo->wtpref, clp->cl_proto);  in nfs_server_set_fsinfo()
854 	if (fsinfo->rtmax >= 512 && server->rsize > fsinfo->rtmax)  in nfs_server_set_fsinfo()
855 		server->rsize = nfs_io_size(fsinfo->rtmax, clp->cl_proto);  in nfs_server_set_fsinfo()
856 	if (fsinfo->wtmax >= 512 && server->wsize > fsinfo->wtmax)  in nfs_server_set_fsinfo()
857 		server->wsize = nfs_io_size(fsinfo->wtmax, clp->cl_proto);  in nfs_server_set_fsinfo()
859 	raw_max_rpc_payload = rpc_max_payload(server->client);  in nfs_server_set_fsinfo()
862 	if (server->rsize > max_rpc_payload)  in nfs_server_set_fsinfo()
863 		server->rsize = max_rpc_payload;  in nfs_server_set_fsinfo()
864 	if (server->rsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
865 		server->rsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
866 	server->rpages = (server->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT;  in nfs_server_set_fsinfo()
868 	if (server->wsize > max_rpc_payload)  in nfs_server_set_fsinfo()
869 		server->wsize = max_rpc_payload;  in nfs_server_set_fsinfo()
870 	if (server->wsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
871 		server->wsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
873 	server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL);  in nfs_server_set_fsinfo()
875 	server->dtsize = nfs_block_size(fsinfo->dtpref, NULL);  in nfs_server_set_fsinfo()
876 	if (server->dtsize > NFS_MAX_FILE_IO_SIZE)  in nfs_server_set_fsinfo()
877 		server->dtsize = NFS_MAX_FILE_IO_SIZE;  in nfs_server_set_fsinfo()
878 	if (server->dtsize > server->rsize)  in nfs_server_set_fsinfo()
879 		server->dtsize = server->rsize;  in nfs_server_set_fsinfo()
881 	if (server->flags & NFS_MOUNT_NOAC) {  in nfs_server_set_fsinfo()
882 		server->acregmin = server->acregmax = 0;  in nfs_server_set_fsinfo()
883 		server->acdirmin = server->acdirmax = 0;  in nfs_server_set_fsinfo()
886 	server->maxfilesize = fsinfo->maxfilesize;  in nfs_server_set_fsinfo()
888 	server->change_attr_type = fsinfo->change_attr_type;  in nfs_server_set_fsinfo()
890 	server->clone_blksize = fsinfo->clone_blksize;  in nfs_server_set_fsinfo()
892 	rpc_setbufsize(server->client, server->wsize + 100, server->rsize + 100);  in nfs_server_set_fsinfo()
898 	server->gxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
900 	server->sxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
902 	server->lxasize = min_t(unsigned int, raw_max_rpc_payload,  in nfs_server_set_fsinfo()
906 		server->caps |= NFS_CAP_XATTR;  in nfs_server_set_fsinfo()
908 		server->caps &= ~NFS_CAP_XATTR;  in nfs_server_set_fsinfo()
915 static int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs_fattr *fatt…  in nfs_probe_fsinfo()  argument
918 	struct nfs_client *clp = server->nfs_client;  in nfs_probe_fsinfo()
922 		error = clp->rpc_ops->set_capabilities(server, mntfh);  in nfs_probe_fsinfo()
930 	error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo);  in nfs_probe_fsinfo()
934 	nfs_server_set_fsinfo(server, &fsinfo);  in nfs_probe_fsinfo()
937 	if (server->namelen == 0) {  in nfs_probe_fsinfo()
943 		if (clp->rpc_ops->pathconf(server, mntfh, &pathinfo) >= 0)  in nfs_probe_fsinfo()
944 			server->namelen = pathinfo.max_namelen;  in nfs_probe_fsinfo()
948 			(server->caps & NFS_CAP_FS_LOCATIONS &&  in nfs_probe_fsinfo()
949 			 (server->flags & NFS_MOUNT_TRUNK_DISCOVERY))) {  in nfs_probe_fsinfo()
950 		error = clp->rpc_ops->discover_trunking(server, mntfh);  in nfs_probe_fsinfo()
964 int nfs_probe_server(struct nfs_server *server, struct nfs_fh *mntfh)  in nfs_probe_server()  argument
975 	error = nfs_probe_fsinfo(server, mntfh, fattr);  in nfs_probe_server()
1005 void nfs_server_insert_lists(struct nfs_server *server)  in nfs_server_insert_lists()  argument
1007 	struct nfs_client *clp = server->nfs_client;  in nfs_server_insert_lists()
1011 	list_add_tail_rcu(&server->client_link, &clp->cl_superblocks);  in nfs_server_insert_lists()
1012 	list_add_tail(&server->master_link, &nn->nfs_volume_list);  in nfs_server_insert_lists()
1019 void nfs_server_remove_lists(struct nfs_server *server)  in nfs_server_remove_lists()  argument
1021 	struct nfs_client *clp = server->nfs_client;  in nfs_server_remove_lists()
1028 	list_del_rcu(&server->client_link);  in nfs_server_remove_lists()
1031 	list_del(&server->master_link);  in nfs_server_remove_lists()
1045 	struct nfs_server *server;  in nfs_alloc_server()  local
1047 	server = kzalloc(sizeof(struct nfs_server), GFP_KERNEL);  in nfs_alloc_server()
1048 	if (!server)  in nfs_alloc_server()
1051 	server->s_sysfs_id = ida_alloc(&s_sysfs_ids, GFP_KERNEL);  in nfs_alloc_server()
1052 	if (server->s_sysfs_id < 0) {  in nfs_alloc_server()
1053 		kfree(server);  in nfs_alloc_server()
1057 	server->client = server->client_acl = ERR_PTR(-EINVAL);  in nfs_alloc_server()
1060 	INIT_LIST_HEAD(&server->client_link);  in nfs_alloc_server()
1061 	INIT_LIST_HEAD(&server->master_link);  in nfs_alloc_server()
1062 	INIT_LIST_HEAD(&server->delegations);  in nfs_alloc_server()
1063 	INIT_LIST_HEAD(&server->layouts);  in nfs_alloc_server()
1064 	INIT_LIST_HEAD(&server->state_owners_lru);  in nfs_alloc_server()
1065 	INIT_LIST_HEAD(&server->ss_copies);  in nfs_alloc_server()
1066 	INIT_LIST_HEAD(&server->ss_src_copies);  in nfs_alloc_server()
1068 	atomic_set(&server->active, 0);  in nfs_alloc_server()
1069 	atomic_long_set(&server->nr_active_delegations, 0);  in nfs_alloc_server()
1071 	server->io_stats = nfs_alloc_iostats();  in nfs_alloc_server()
1072 	if (!server->io_stats) {  in nfs_alloc_server()
1073 		kfree(server);  in nfs_alloc_server()
1077 	server->change_attr_type = NFS4_CHANGE_TYPE_IS_UNDEFINED;  in nfs_alloc_server()
1079 	init_waitqueue_head(&server->write_congestion_wait);  in nfs_alloc_server()
1080 	atomic_long_set(&server->writeback, 0);  in nfs_alloc_server()
1082 	atomic64_set(&server->owner_ctr, 0);  in nfs_alloc_server()
1084 	pnfs_init_server(server);  in nfs_alloc_server()
1085 	rpc_init_wait_queue(&server->uoc_rpcwaitq, "NFS UOC");  in nfs_alloc_server()
1087 	return server;  in nfs_alloc_server()
1093 	struct nfs_server *server = container_of(p, struct nfs_server, rcu);  in delayed_free()  local
1095 	nfs_free_iostats(server->io_stats);  in delayed_free()
1096 	kfree(server);  in delayed_free()
1102 void nfs_free_server(struct nfs_server *server)  in nfs_free_server()  argument
1104 	nfs_server_remove_lists(server);  in nfs_free_server()
1106 	if (server->destroy != NULL)  in nfs_free_server()
1107 		server->destroy(server);  in nfs_free_server()
1109 	if (!IS_ERR(server->client_acl))  in nfs_free_server()
1110 		rpc_shutdown_client(server->client_acl);  in nfs_free_server()
1111 	if (!IS_ERR(server->client))  in nfs_free_server()
1112 		rpc_shutdown_client(server->client);  in nfs_free_server()
1114 	nfs_put_client(server->nfs_client);  in nfs_free_server()
1116 	if (server->kobj.state_initialized) {  in nfs_free_server()
1117 		nfs_sysfs_remove_server(server);  in nfs_free_server()
1118 		kobject_put(&server->kobj);  in nfs_free_server()
1120 	ida_free(&s_sysfs_ids, server->s_sysfs_id);  in nfs_free_server()
1122 	put_cred(server->cred);  in nfs_free_server()
1124 	call_rcu(&server->rcu, delayed_free);  in nfs_free_server()
1135 	struct nfs_server *server;  in nfs_create_server()  local
1139 	server = nfs_alloc_server();  in nfs_create_server()
1140 	if (!server)  in nfs_create_server()
1143 	server->cred = get_cred(fc->cred);  in nfs_create_server()
1151 	error = nfs_init_server(server, fc);  in nfs_create_server()
1156 	error = nfs_probe_fsinfo(server, ctx->mntfh, fattr);  in nfs_create_server()
1159 	if (server->nfs_client->rpc_ops->version == 3) {  in nfs_create_server()
1160 		if (server->namelen == 0 || server->namelen > NFS3_MAXNAMLEN)  in nfs_create_server()
1161 			server->namelen = NFS3_MAXNAMLEN;  in nfs_create_server()
1163 			server->caps |= NFS_CAP_READDIRPLUS;  in nfs_create_server()
1165 		if (server->namelen == 0 || server->namelen > NFS2_MAXNAMLEN)  in nfs_create_server()
1166 			server->namelen = NFS2_MAXNAMLEN;  in nfs_create_server()
1169 	server->fh_expire_type = NFS_FH_VOL_RENAME;  in nfs_create_server()
1172 		error = ctx->nfs_mod->rpc_ops->getattr(server, ctx->mntfh,  in nfs_create_server()
1179 	memcpy(&server->fsid, &fattr->fsid, sizeof(server->fsid));  in nfs_create_server()
1182 		(unsigned long long) server->fsid.major,  in nfs_create_server()
1183 		(unsigned long long) server->fsid.minor);  in nfs_create_server()
1185 	nfs_server_insert_lists(server);  in nfs_create_server()
1186 	server->mount_time = jiffies;  in nfs_create_server()
1188 	return server;  in nfs_create_server()
1192 	nfs_free_server(server);  in nfs_create_server()
1205 	struct nfs_server *server;  in nfs_clone_server()  local
1208 	server = nfs_alloc_server();  in nfs_clone_server()
1209 	if (!server)  in nfs_clone_server()
1212 	server->cred = get_cred(source->cred);  in nfs_clone_server()
1215 	server->nfs_client = source->nfs_client;  in nfs_clone_server()
1216 	server->destroy = source->destroy;  in nfs_clone_server()
1217 	refcount_inc(&server->nfs_client->cl_count);  in nfs_clone_server()
1218 	nfs_server_copy_userdata(server, source);  in nfs_clone_server()
1220 	server->fsid = fattr->fsid;  in nfs_clone_server()
1222 	nfs_sysfs_add_server(server);  in nfs_clone_server()
1224 	nfs_sysfs_link_rpc_client(server,  in nfs_clone_server()
1225 		server->nfs_client->cl_rpcclient, "_state");  in nfs_clone_server()
1227 	error = nfs_init_server_rpcclient(server,  in nfs_clone_server()
1233 	nfs_server_set_init_caps(server);  in nfs_clone_server()
1236 	error = nfs_probe_server(server, fh);  in nfs_clone_server()
1240 	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)  in nfs_clone_server()
1241 		server->namelen = NFS4_MAXNAMLEN;  in nfs_clone_server()
1243 	error = nfs_start_lockd(server);  in nfs_clone_server()
1247 	nfs_server_insert_lists(server);  in nfs_clone_server()
1248 	server->mount_time = jiffies;  in nfs_clone_server()
1250 	return server;  in nfs_clone_server()
1253 	nfs_free_server(server);  in nfs_clone_server()
1423 	struct nfs_server *server;  in nfs_volume_list_show()  local
1436 	server = list_entry(v, struct nfs_server, master_link);  in nfs_volume_list_show()
1437 	clp = server->nfs_client;  in nfs_volume_list_show()
1440 		 MAJOR(server->s_dev), MINOR(server->s_dev));  in nfs_volume_list_show()
1443 		 (unsigned long long) server->fsid.major,  in nfs_volume_list_show()
1444 		 (unsigned long long) server->fsid.minor);  in nfs_volume_list_show()
1453 		   nfs_server_fscache_state(server));  in nfs_volume_list_show()