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466bfe7f BS |
1 | /* |
2 | * linux/fs/nfs/nfs4sysctl.c | |
3 | * | |
4 | * Sysctl interface to NFS v4 parameters | |
5 | * | |
6 | * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com> | |
7 | */ | |
8 | #include <linux/sysctl.h> | |
466bfe7f BS |
9 | #include <linux/nfs_fs.h> |
10 | ||
22e24309 | 11 | #include "nfs4_fs.h" |
40c64c26 | 12 | #include "nfs4idmap.h" |
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13 | #include "callback.h" |
14 | ||
ed476752 | 15 | static const int nfs_set_port_min; |
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16 | static const int nfs_set_port_max = 65535; |
17 | static struct ctl_table_header *nfs4_callback_sysctl_table; | |
18 | ||
f5102e56 | 19 | static struct ctl_table nfs4_cb_sysctls[] = { |
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20 | { |
21 | .procname = "nfs_callback_tcpport", | |
22 | .data = &nfs_callback_set_tcpport, | |
23 | .maxlen = sizeof(int), | |
24 | .mode = 0644, | |
25 | .proc_handler = proc_dointvec_minmax, | |
26 | .extra1 = (int *)&nfs_set_port_min, | |
27 | .extra2 = (int *)&nfs_set_port_max, | |
28 | }, | |
29 | { | |
30 | .procname = "idmap_cache_timeout", | |
31 | .data = &nfs_idmap_cache_timeout, | |
32 | .maxlen = sizeof(int), | |
33 | .mode = 0644, | |
34 | .proc_handler = proc_dointvec_jiffies, | |
35 | }, | |
36 | { } | |
37 | }; | |
38 | ||
f5102e56 | 39 | static struct ctl_table nfs4_cb_sysctl_dir[] = { |
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40 | { |
41 | .procname = "nfs", | |
42 | .mode = 0555, | |
43 | .child = nfs4_cb_sysctls, | |
44 | }, | |
45 | { } | |
46 | }; | |
47 | ||
f5102e56 | 48 | static struct ctl_table nfs4_cb_sysctl_root[] = { |
466bfe7f BS |
49 | { |
50 | .procname = "fs", | |
51 | .mode = 0555, | |
52 | .child = nfs4_cb_sysctl_dir, | |
53 | }, | |
54 | { } | |
55 | }; | |
56 | ||
57 | int nfs4_register_sysctl(void) | |
58 | { | |
59 | nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root); | |
60 | if (nfs4_callback_sysctl_table == NULL) | |
61 | return -ENOMEM; | |
62 | return 0; | |
63 | } | |
64 | ||
65 | void nfs4_unregister_sysctl(void) | |
66 | { | |
67 | unregister_sysctl_table(nfs4_callback_sysctl_table); | |
68 | nfs4_callback_sysctl_table = NULL; | |
69 | } |