gro: Allow tunnel stacking in the case of FOU/GUE
[linux/fpc-iii.git] / fs / nfs / nfs4sysctl.c
blob0fbd3ab1be222e9d3c47a7c96c16e11955724ad0
1 /*
2 * linux/fs/nfs/nfs4sysctl.c
4 * Sysctl interface to NFS v4 parameters
6 * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
7 */
8 #include <linux/sysctl.h>
9 #include <linux/nfs_fs.h>
11 #include "nfs4_fs.h"
12 #include "nfs4idmap.h"
13 #include "callback.h"
15 static const int nfs_set_port_min = 0;
16 static const int nfs_set_port_max = 65535;
17 static struct ctl_table_header *nfs4_callback_sysctl_table;
19 static struct ctl_table nfs4_cb_sysctls[] = {
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,
30 .procname = "idmap_cache_timeout",
31 .data = &nfs_idmap_cache_timeout,
32 .maxlen = sizeof(int),
33 .mode = 0644,
34 .proc_handler = proc_dointvec_jiffies,
36 { }
39 static struct ctl_table nfs4_cb_sysctl_dir[] = {
41 .procname = "nfs",
42 .mode = 0555,
43 .child = nfs4_cb_sysctls,
45 { }
48 static struct ctl_table nfs4_cb_sysctl_root[] = {
50 .procname = "fs",
51 .mode = 0555,
52 .child = nfs4_cb_sysctl_dir,
54 { }
57 int nfs4_register_sysctl(void)
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;
65 void nfs4_unregister_sysctl(void)
67 unregister_sysctl_table(nfs4_callback_sysctl_table);
68 nfs4_callback_sysctl_table = NULL;