1/*
 2 * linux/fs/nfs/sysctl.c
 3 *
 4 * Sysctl interface to NFS parameters
 5 */
 6#include <linux/types.h>
 7#include <linux/linkage.h>
 8#include <linux/ctype.h>
 9#include <linux/fs.h>
10#include <linux/sysctl.h>
11#include <linux/module.h>
12#include <linux/nfs4.h>
13#include <linux/nfs_idmap.h>
14#include <linux/nfs_fs.h>
15
16#include "callback.h"
17
18#ifdef CONFIG_NFS_V4
19static const int nfs_set_port_min = 0;
20static const int nfs_set_port_max = 65535;
21#endif
22static struct ctl_table_header *nfs_callback_sysctl_table;
23
24static ctl_table nfs_cb_sysctls[] = {
25#ifdef CONFIG_NFS_V4
26	{
27		.procname = "nfs_callback_tcpport",
28		.data = &nfs_callback_set_tcpport,
29		.maxlen = sizeof(int),
30		.mode = 0644,
31		.proc_handler = proc_dointvec_minmax,
32		.extra1 = (int *)&nfs_set_port_min,
33		.extra2 = (int *)&nfs_set_port_max,
34	},
 
35	{
36		.procname = "idmap_cache_timeout",
37		.data = &nfs_idmap_cache_timeout,
38		.maxlen = sizeof(int),
39		.mode = 0644,
40		.proc_handler = proc_dointvec_jiffies,
41	},
 
42#endif
43	{
44		.procname	= "nfs_mountpoint_timeout",
45		.data		= &nfs_mountpoint_expiry_timeout,
46		.maxlen		= sizeof(nfs_mountpoint_expiry_timeout),
47		.mode		= 0644,
48		.proc_handler	= proc_dointvec_jiffies,
49	},
50	{
51		.procname	= "nfs_congestion_kb",
52		.data		= &nfs_congestion_kb,
53		.maxlen		= sizeof(nfs_congestion_kb),
54		.mode		= 0644,
55		.proc_handler	= proc_dointvec,
56	},
57	{ }
58};
59
60static ctl_table nfs_cb_sysctl_dir[] = {
61	{
62		.procname = "nfs",
63		.mode = 0555,
64		.child = nfs_cb_sysctls,
65	},
66	{ }
67};
68
69static ctl_table nfs_cb_sysctl_root[] = {
70	{
71		.procname = "fs",
72		.mode = 0555,
73		.child = nfs_cb_sysctl_dir,
74	},
75	{ }
76};
77
78int nfs_register_sysctl(void)
79{
80	nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
81	if (nfs_callback_sysctl_table == NULL)
82		return -ENOMEM;
83	return 0;
84}
85
86void nfs_unregister_sysctl(void)
87{
88	unregister_sysctl_table(nfs_callback_sysctl_table);
89	nfs_callback_sysctl_table = NULL;
90}

 1/*
 2 * linux/fs/nfs/sysctl.c
 3 *
 4 * Sysctl interface to NFS parameters
 5 */
 6#include <linux/types.h>
 7#include <linux/linkage.h>
 8#include <linux/ctype.h>
 9#include <linux/fs.h>
10#include <linux/sysctl.h>
11#include <linux/module.h>
12#include <linux/nfs4.h>
13#include <linux/nfs_idmap.h>
14#include <linux/nfs_fs.h>
15
16#include "callback.h"
17
18#ifdef CONFIG_NFS_V4
19static const int nfs_set_port_min = 0;
20static const int nfs_set_port_max = 65535;
21#endif
22static struct ctl_table_header *nfs_callback_sysctl_table;
23
24static ctl_table nfs_cb_sysctls[] = {
25#ifdef CONFIG_NFS_V4
26	{
27		.procname = "nfs_callback_tcpport",
28		.data = &nfs_callback_set_tcpport,
29		.maxlen = sizeof(int),
30		.mode = 0644,
31		.proc_handler = proc_dointvec_minmax,
32		.extra1 = (int *)&nfs_set_port_min,
33		.extra2 = (int *)&nfs_set_port_max,
34	},
35#ifndef CONFIG_NFS_USE_NEW_IDMAPPER
36	{
37		.procname = "idmap_cache_timeout",
38		.data = &nfs_idmap_cache_timeout,
39		.maxlen = sizeof(int),
40		.mode = 0644,
41		.proc_handler = proc_dointvec_jiffies,
42	},
43#endif /* CONFIG_NFS_USE_NEW_IDMAPPER */
44#endif
45	{
46		.procname	= "nfs_mountpoint_timeout",
47		.data		= &nfs_mountpoint_expiry_timeout,
48		.maxlen		= sizeof(nfs_mountpoint_expiry_timeout),
49		.mode		= 0644,
50		.proc_handler	= proc_dointvec_jiffies,
51	},
52	{
53		.procname	= "nfs_congestion_kb",
54		.data		= &nfs_congestion_kb,
55		.maxlen		= sizeof(nfs_congestion_kb),
56		.mode		= 0644,
57		.proc_handler	= proc_dointvec,
58	},
59	{ }
60};
61
62static ctl_table nfs_cb_sysctl_dir[] = {
63	{
64		.procname = "nfs",
65		.mode = 0555,
66		.child = nfs_cb_sysctls,
67	},
68	{ }
69};
70
71static ctl_table nfs_cb_sysctl_root[] = {
72	{
73		.procname = "fs",
74		.mode = 0555,
75		.child = nfs_cb_sysctl_dir,
76	},
77	{ }
78};
79
80int nfs_register_sysctl(void)
81{
82	nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
83	if (nfs_callback_sysctl_table == NULL)
84		return -ENOMEM;
85	return 0;
86}
87
88void nfs_unregister_sysctl(void)
89{
90	unregister_sysctl_table(nfs_callback_sysctl_table);
91	nfs_callback_sysctl_table = NULL;
92}