net/sunrpc/sunrpc_syms.c

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