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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}
91
