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Commit | Line | Data |
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a72b4422 TM |
1 | /* |
2 | * linux/fs/nfs/sysctl.c | |
3 | * | |
4 | * Sysctl interface to NFS parameters | |
5 | */ | |
a72b4422 TM |
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> | |
58df095b | 13 | #include <linux/nfs_idmap.h> |
51d8fa6a | 14 | #include <linux/nfs_fs.h> |
a72b4422 TM |
15 | |
16 | #include "callback.h" | |
17 | ||
18 | static const int nfs_set_port_min = 0; | |
19 | static const int nfs_set_port_max = 65535; | |
20 | static struct ctl_table_header *nfs_callback_sysctl_table; | |
a72b4422 TM |
21 | |
22 | static ctl_table nfs_cb_sysctls[] = { | |
23 | #ifdef CONFIG_NFS_V4 | |
24 | { | |
a72b4422 TM |
25 | .procname = "nfs_callback_tcpport", |
26 | .data = &nfs_callback_set_tcpport, | |
27 | .maxlen = sizeof(int), | |
28 | .mode = 0644, | |
29 | .proc_handler = &proc_dointvec_minmax, | |
30 | .extra1 = (int *)&nfs_set_port_min, | |
31 | .extra2 = (int *)&nfs_set_port_max, | |
32 | }, | |
58df095b | 33 | { |
58df095b TM |
34 | .procname = "idmap_cache_timeout", |
35 | .data = &nfs_idmap_cache_timeout, | |
36 | .maxlen = sizeof(int), | |
37 | .mode = 0644, | |
38 | .proc_handler = &proc_dointvec_jiffies, | |
58df095b | 39 | }, |
a72b4422 | 40 | #endif |
51d8fa6a | 41 | { |
51d8fa6a TM |
42 | .procname = "nfs_mountpoint_timeout", |
43 | .data = &nfs_mountpoint_expiry_timeout, | |
44 | .maxlen = sizeof(nfs_mountpoint_expiry_timeout), | |
45 | .mode = 0644, | |
46 | .proc_handler = &proc_dointvec_jiffies, | |
51d8fa6a | 47 | }, |
89a09141 | 48 | { |
89a09141 PZ |
49 | .procname = "nfs_congestion_kb", |
50 | .data = &nfs_congestion_kb, | |
51 | .maxlen = sizeof(nfs_congestion_kb), | |
52 | .mode = 0644, | |
53 | .proc_handler = &proc_dointvec, | |
54 | }, | |
ab09203e | 55 | { } |
a72b4422 TM |
56 | }; |
57 | ||
58 | static ctl_table nfs_cb_sysctl_dir[] = { | |
59 | { | |
a72b4422 TM |
60 | .procname = "nfs", |
61 | .mode = 0555, | |
62 | .child = nfs_cb_sysctls, | |
63 | }, | |
ab09203e | 64 | { } |
a72b4422 TM |
65 | }; |
66 | ||
67 | static ctl_table nfs_cb_sysctl_root[] = { | |
68 | { | |
a72b4422 TM |
69 | .procname = "fs", |
70 | .mode = 0555, | |
71 | .child = nfs_cb_sysctl_dir, | |
72 | }, | |
ab09203e | 73 | { } |
a72b4422 TM |
74 | }; |
75 | ||
76 | int nfs_register_sysctl(void) | |
77 | { | |
0b4d4147 | 78 | nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root); |
a72b4422 TM |
79 | if (nfs_callback_sysctl_table == NULL) |
80 | return -ENOMEM; | |
81 | return 0; | |
82 | } | |
83 | ||
84 | void nfs_unregister_sysctl(void) | |
85 | { | |
86 | unregister_sysctl_table(nfs_callback_sysctl_table); | |
87 | nfs_callback_sysctl_table = NULL; | |
88 | } |