1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * linux/net/sunrpc/sunrpc_syms.c 4 * 5 * Symbols exported by the sunrpc module. 6 * 7 * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de> 8 */ 9 10 #include <linux/module.h> 11 12 #include <linux/types.h> 13 #include <linux/uio.h> 14 #include <linux/unistd.h> 15 #include <linux/init.h> 16 17 #include <linux/sunrpc/sched.h> 18 #include <linux/sunrpc/clnt.h> 19 #include <linux/sunrpc/svc.h> 20 #include <linux/sunrpc/svcsock.h> 21 #include <linux/sunrpc/auth.h> 22 #include <linux/workqueue.h> 23 #include <linux/sunrpc/rpc_pipe_fs.h> 24 #include <linux/sunrpc/xprtsock.h> 25 26 #include "netns.h" 27 28 unsigned int sunrpc_net_id; 29 EXPORT_SYMBOL_GPL(sunrpc_net_id); 30 31 static __net_init int sunrpc_init_net(struct net *net) 32 { 33 int err; 34 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); 35 36 err = rpc_proc_init(net); 37 if (err) 38 goto err_proc; 39 40 err = ip_map_cache_create(net); 41 if (err) 42 goto err_ipmap; 43 44 err = unix_gid_cache_create(net); 45 if (err) 46 goto err_unixgid; 47 48 err = rpc_pipefs_init_net(net); 49 if (err) 50 goto err_pipefs; 51 52 INIT_LIST_HEAD(&sn->all_clients); 53 spin_lock_init(&sn->rpc_client_lock); 54 spin_lock_init(&sn->rpcb_clnt_lock); 55 return 0; 56 57 err_pipefs: 58 unix_gid_cache_destroy(net); 59 err_unixgid: 60 ip_map_cache_destroy(net); 61 err_ipmap: 62 rpc_proc_exit(net); 63 err_proc: 64 return err; 65 } 66 67 static __net_exit void sunrpc_exit_net(struct net *net) 68 { 69 struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); 70 71 rpc_pipefs_exit_net(net); 72 unix_gid_cache_destroy(net); 73 ip_map_cache_destroy(net); 74 rpc_proc_exit(net); 75 WARN_ON_ONCE(!list_empty(&sn->all_clients)); 76 } 77 78 static struct pernet_operations sunrpc_net_ops = { 79 .init = sunrpc_init_net, 80 .exit = sunrpc_exit_net, 81 .id = &sunrpc_net_id, 82 .size = sizeof(struct sunrpc_net), 83 }; 84 85 static int __init 86 init_sunrpc(void) 87 { 88 int err = rpc_init_mempool(); 89 if (err) 90 goto out; 91 err = rpcauth_init_module(); 92 if (err) 93 goto out2; 94 95 cache_initialize(); 96 97 err = register_pernet_subsys(&sunrpc_net_ops); 98 if (err) 99 goto out3; 100 101 err = register_rpc_pipefs(); 102 if (err) 103 goto out4; 104 105 sunrpc_debugfs_init(); 106 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) 107 rpc_register_sysctl(); 108 #endif 109 svc_init_xprt_sock(); /* svc sock transport */ 110 init_socket_xprt(); /* clnt sock transport */ 111 return 0; 112 113 out4: 114 unregister_pernet_subsys(&sunrpc_net_ops); 115 out3: 116 rpcauth_remove_module(); 117 out2: 118 rpc_destroy_mempool(); 119 out: 120 return err; 121 } 122 123 static void __exit 124 cleanup_sunrpc(void) 125 { 126 rpc_cleanup_clids(); 127 rpcauth_remove_module(); 128 cleanup_socket_xprt(); 129 svc_cleanup_xprt_sock(); 130 sunrpc_debugfs_exit(); 131 unregister_rpc_pipefs(); 132 rpc_destroy_mempool(); 133 unregister_pernet_subsys(&sunrpc_net_ops); 134 #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) 135 rpc_unregister_sysctl(); 136 #endif 137 rcu_barrier(); /* Wait for completion of call_rcu()'s */ 138 } 139 MODULE_LICENSE("GPL"); 140 fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */ 141 module_exit(cleanup_sunrpc); 142