linux/net/sunrpc/sunrpc_syms.c
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   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
  27int sunrpc_net_id;
  28EXPORT_SYMBOL_GPL(sunrpc_net_id);
  29
  30static __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
  53err_unixgid:
  54        ip_map_cache_destroy(net);
  55err_ipmap:
  56        rpc_proc_exit(net);
  57err_proc:
  58        return err;
  59}
  60
  61static __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
  68static 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
  75static int __init
  76init_sunrpc(void)
  77{
  78        int err = rpc_init_mempool();
  79        if (err)
  80                goto out;
  81        err = rpcauth_init_module();
  82        if (err)
  83                goto out2;
  84
  85        cache_initialize();
  86
  87        err = register_pernet_subsys(&sunrpc_net_ops);
  88        if (err)
  89                goto out3;
  90
  91        err = register_rpc_pipefs();
  92        if (err)
  93                goto out4;
  94#ifdef RPC_DEBUG
  95        rpc_register_sysctl();
  96#endif
  97        svc_init_xprt_sock();   /* svc sock transport */
  98        init_socket_xprt();     /* clnt sock transport */
  99        return 0;
 100
 101out4:
 102        unregister_pernet_subsys(&sunrpc_net_ops);
 103out3:
 104        rpcauth_remove_module();
 105out2:
 106        rpc_destroy_mempool();
 107out:
 108        return err;
 109}
 110
 111static void __exit
 112cleanup_sunrpc(void)
 113{
 114        rpcauth_remove_module();
 115        cleanup_socket_xprt();
 116        svc_cleanup_xprt_sock();
 117        unregister_rpc_pipefs();
 118        rpc_destroy_mempool();
 119        unregister_pernet_subsys(&sunrpc_net_ops);
 120#ifdef RPC_DEBUG
 121        rpc_unregister_sysctl();
 122#endif
 123        rcu_barrier(); /* Wait for completion of call_rcu()'s */
 124}
 125MODULE_LICENSE("GPL");
 126fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
 127module_exit(cleanup_sunrpc);
 128
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