[mirror_ubuntu-bionic-kernel.git] / net / sunrpc / sunrpc_syms.c

/*
 * linux/net/sunrpc/sunrpc_syms.c
 *
 * Symbols exported by the sunrpc module.
 *
 * Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
 */

#include <linux/module.h>

#include <linux/types.h>
#include <linux/uio.h>
#include <linux/unistd.h>
#include <linux/init.h>

#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/auth.h>
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/sunrpc/xprtsock.h>

#include "netns.h"

unsigned int sunrpc_net_id;
EXPORT_SYMBOL_GPL(sunrpc_net_id);

static __net_init int sunrpc_init_net(struct net *net)
{
	int err;
	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);

	err = rpc_proc_init(net);
	if (err)
		goto err_proc;

	err = ip_map_cache_create(net);
	if (err)
		goto err_ipmap;

	err = unix_gid_cache_create(net);
	if (err)
		goto err_unixgid;

	err = rpc_pipefs_init_net(net);
	if (err)
		goto err_pipefs;

	INIT_LIST_HEAD(&sn->all_clients);
	spin_lock_init(&sn->rpc_client_lock);
	spin_lock_init(&sn->rpcb_clnt_lock);
	return 0;

err_pipefs:
	unix_gid_cache_destroy(net);
err_unixgid:
	ip_map_cache_destroy(net);
err_ipmap:
	rpc_proc_exit(net);
err_proc:
	return err;
}

static __net_exit void sunrpc_exit_net(struct net *net)
{
	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);

	rpc_pipefs_exit_net(net);
	unix_gid_cache_destroy(net);
	ip_map_cache_destroy(net);
	rpc_proc_exit(net);
	WARN_ON_ONCE(!list_empty(&sn->all_clients));
}

static struct pernet_operations sunrpc_net_ops = {
	.init = sunrpc_init_net,
	.exit = sunrpc_exit_net,
	.id = &sunrpc_net_id,
	.size = sizeof(struct sunrpc_net),
};

static int __init
init_sunrpc(void)
{
	int err = rpc_init_mempool();
	if (err)
		goto out;
	err = rpcauth_init_module();
	if (err)
		goto out2;

	cache_initialize();

	err = register_pernet_subsys(&sunrpc_net_ops);
	if (err)
		goto out3;

	err = register_rpc_pipefs();
	if (err)
		goto out4;

	sunrpc_debugfs_init();
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
	rpc_register_sysctl();
#endif
	svc_init_xprt_sock();	/* svc sock transport */
	init_socket_xprt();	/* clnt sock transport */
	return 0;

out4:
	unregister_pernet_subsys(&sunrpc_net_ops);
out3:
	rpcauth_remove_module();
out2:
	rpc_destroy_mempool();
out:
	return err;
}

static void __exit
cleanup_sunrpc(void)
{
	rpc_cleanup_clids();
	rpcauth_remove_module();
	cleanup_socket_xprt();
	svc_cleanup_xprt_sock();
	sunrpc_debugfs_exit();
	unregister_rpc_pipefs();
	rpc_destroy_mempool();
	unregister_pernet_subsys(&sunrpc_net_ops);
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
	rpc_unregister_sysctl();
#endif
	rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
MODULE_LICENSE("GPL");
fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
module_exit(cleanup_sunrpc);
Commit	Line	Data
1da177e4 LT	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
1da177e4 LT	9	#include <linux/module.h>
	10
	11	#include <linux/types.h>
1da177e4 LT	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>
49c36fcc	23	#include <linux/sunrpc/xprtsock.h>
1da177e4	24
2f72c9b7 PE	25	#include "netns.h"
2f72c9b7 PE	26
c7d03a00	27	unsigned int sunrpc_net_id;
a1db410d	28	EXPORT_SYMBOL_GPL(sunrpc_net_id);
2f72c9b7 PE	29
	30	static __net_init int sunrpc_init_net(struct net *net)
	31	{
4f42d0d5	32	int err;
70abc49b	33	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
4f42d0d5 PE	34
	35	err = rpc_proc_init(net);
	36	if (err)
	37	goto err_proc;
	38
90d51b02 PE	39	err = ip_map_cache_create(net);
	40	if (err)
	41	goto err_ipmap;
	42
73393232 SK	43	err = unix_gid_cache_create(net);
	44	if (err)
	45	goto err_unixgid;
	46
4b9a445e JL	47	err = rpc_pipefs_init_net(net);
	48	if (err)
	49	goto err_pipefs;
	50
70abc49b SK	51	INIT_LIST_HEAD(&sn->all_clients);
70abc49b SK	52	spin_lock_init(&sn->rpc_client_lock);
1d96e80f	53	spin_lock_init(&sn->rpcb_clnt_lock);
2f72c9b7	54	return 0;
4f42d0d5	55
4b9a445e JL	56	err_pipefs:
4b9a445e JL	57	unix_gid_cache_destroy(net);
73393232 SK	58	err_unixgid:
73393232 SK	59	ip_map_cache_destroy(net);
90d51b02 PE	60	err_ipmap:
90d51b02 PE	61	rpc_proc_exit(net);
4f42d0d5 PE	62	err_proc:
4f42d0d5 PE	63	return err;
2f72c9b7 PE	64	}
	65
	66	static __net_exit void sunrpc_exit_net(struct net *net)
	67	{
4112be70 VA	68	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
4112be70 VA	69
4b9a445e	70	rpc_pipefs_exit_net(net);
73393232	71	unix_gid_cache_destroy(net);
90d51b02	72	ip_map_cache_destroy(net);
4f42d0d5	73	rpc_proc_exit(net);
4112be70	74	WARN_ON_ONCE(!list_empty(&sn->all_clients));
2f72c9b7 PE	75	}
	76
	77	static struct pernet_operations sunrpc_net_ops = {
	78	.init = sunrpc_init_net,
	79	.exit = sunrpc_exit_net,
	80	.id = &sunrpc_net_id,
	81	.size = sizeof(struct sunrpc_net),
	82	};
	83
1da177e4 LT	84	static int __init
	85	init_sunrpc(void)
	86	{
adae0fe0	87	int err = rpc_init_mempool();
1da177e4 LT	88	if (err)
1da177e4 LT	89	goto out;
5d8d9a4d TM	90	err = rpcauth_init_module();
5d8d9a4d TM	91	if (err)
adae0fe0	92	goto out2;
2f72c9b7 PE	93
	94	cache_initialize();
	95
	96	err = register_pernet_subsys(&sunrpc_net_ops);
adae0fe0 SK	97	if (err)
	98	goto out3;
	99
	100	err = register_rpc_pipefs();
2f72c9b7 PE	101	if (err)
2f72c9b7 PE	102	goto out4;
b4b9d2cc	103
f9c72d10	104	sunrpc_debugfs_init();
f895b252	105	#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
1da177e4	106	rpc_register_sysctl();
1da177e4	107	#endif
360d8738 TT	108	svc_init_xprt_sock(); /* svc sock transport */
360d8738 TT	109	init_socket_xprt(); /* clnt sock transport */
5d8d9a4d	110	return 0;
2f72c9b7 PE	111
2f72c9b7 PE	112	out4:
adae0fe0	113	unregister_pernet_subsys(&sunrpc_net_ops);
5d8d9a4d	114	out3:
adae0fe0	115	rpcauth_remove_module();
5d8d9a4d	116	out2:
adae0fe0	117	rpc_destroy_mempool();
1da177e4 LT	118	out:
	119	return err;
	120	}
	121
	122	static void __exit
	123	cleanup_sunrpc(void)
	124	{
c929ea0b	125	rpc_cleanup_clids();
f5c2187c	126	rpcauth_remove_module();
282b32e1	127	cleanup_socket_xprt();
360d8738	128	svc_cleanup_xprt_sock();
b4b9d2cc	129	sunrpc_debugfs_exit();
1da177e4 LT	130	unregister_rpc_pipefs();
1da177e4 LT	131	rpc_destroy_mempool();
2f72c9b7	132	unregister_pernet_subsys(&sunrpc_net_ops);
f895b252	133	#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
1da177e4	134	rpc_unregister_sysctl();
1da177e4	135	#endif
75de874f	136	rcu_barrier(); /* Wait for completion of call_rcu()'s */
1da177e4 LT	137	}
1da177e4 LT	138	MODULE_LICENSE("GPL");
405d8f8b	139	fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
1da177e4	140	module_exit(cleanup_sunrpc);