summaryrefslogtreecommitdiff
path: root/fs/nfs/nfs4sysctl.c
blob: e776200e9a115e7af40d989c79a1ec845007b9e9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
// SPDX-License-Identifier: GPL-2.0
/*
 * linux/fs/nfs/nfs4sysctl.c
 *
 * Sysctl interface to NFS v4 parameters
 *
 * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
 */
#include <linux/sysctl.h>
#include <linux/nfs_fs.h>

#include "nfs4_fs.h"
#include "nfs4idmap.h"
#include "callback.h"

static const int nfs_set_port_min;
static const int nfs_set_port_max = 65535;
static struct ctl_table_header *nfs4_callback_sysctl_table;

static struct ctl_table nfs4_cb_sysctls[] = {
	{
		.procname = "nfs_callback_tcpport",
		.data = &nfs_callback_set_tcpport,
		.maxlen = sizeof(int),
		.mode = 0644,
		.proc_handler = proc_dointvec_minmax,
		.extra1 = (int *)&nfs_set_port_min,
		.extra2 = (int *)&nfs_set_port_max,
	},
	{
		.procname = "idmap_cache_timeout",
		.data = &nfs_idmap_cache_timeout,
		.maxlen = sizeof(int),
		.mode = 0644,
		.proc_handler = proc_dointvec,
	},
	{ }
};

int nfs4_register_sysctl(void)
{
	nfs4_callback_sysctl_table = register_sysctl("fs/nfs",
						     nfs4_cb_sysctls);
	if (nfs4_callback_sysctl_table == NULL)
		return -ENOMEM;
	return 0;
}

void nfs4_unregister_sysctl(void)
{
	unregister_sysctl_table(nfs4_callback_sysctl_table);
	nfs4_callback_sysctl_table = NULL;
}