2 * linux/fs/nfs/nfs4sysctl.c
4 * Sysctl interface to NFS v4 parameters
6 * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
8 #include <linux/sysctl.h>
9 #include <linux/nfs_idmap.h>
10 #include <linux/nfs_fs.h>
14 static const int nfs_set_port_min
= 0;
15 static const int nfs_set_port_max
= 65535;
16 static struct ctl_table_header
*nfs4_callback_sysctl_table
;
18 static ctl_table nfs4_cb_sysctls
[] = {
20 .procname
= "nfs_callback_tcpport",
21 .data
= &nfs_callback_set_tcpport
,
22 .maxlen
= sizeof(int),
24 .proc_handler
= proc_dointvec_minmax
,
25 .extra1
= (int *)&nfs_set_port_min
,
26 .extra2
= (int *)&nfs_set_port_max
,
29 .procname
= "idmap_cache_timeout",
30 .data
= &nfs_idmap_cache_timeout
,
31 .maxlen
= sizeof(int),
33 .proc_handler
= proc_dointvec_jiffies
,
38 static ctl_table nfs4_cb_sysctl_dir
[] = {
42 .child
= nfs4_cb_sysctls
,
47 static ctl_table nfs4_cb_sysctl_root
[] = {
51 .child
= nfs4_cb_sysctl_dir
,
56 int nfs4_register_sysctl(void)
58 nfs4_callback_sysctl_table
= register_sysctl_table(nfs4_cb_sysctl_root
);
59 if (nfs4_callback_sysctl_table
== NULL
)
64 void nfs4_unregister_sysctl(void)
66 unregister_sysctl_table(nfs4_callback_sysctl_table
);
67 nfs4_callback_sysctl_table
= NULL
;