1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * linux/fs/nfs/sysctl.c
 4 *
 5 * Sysctl interface to NFS parameters
 6 */
 7#include <linux/types.h>
 8#include <linux/linkage.h>
 9#include <linux/ctype.h>
10#include <linux/fs.h>
11#include <linux/sysctl.h>
12#include <linux/module.h>
13#include <linux/nfs_fs.h>
14
15static struct ctl_table_header *nfs_callback_sysctl_table;
16
17static struct ctl_table nfs_cb_sysctls[] = {
18	{
19		.procname	= "nfs_mountpoint_timeout",
20		.data		= &nfs_mountpoint_expiry_timeout,
21		.maxlen		= sizeof(nfs_mountpoint_expiry_timeout),
22		.mode		= 0644,
23		.proc_handler	= proc_dointvec_jiffies,
24	},
25	{
26		.procname	= "nfs_congestion_kb",
27		.data		= &nfs_congestion_kb,
28		.maxlen		= sizeof(nfs_congestion_kb),
29		.mode		= 0644,
30		.proc_handler	= proc_dointvec,
31	},
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
32};
33
34int nfs_register_sysctl(void)
35{
36	nfs_callback_sysctl_table = register_sysctl("fs/nfs", nfs_cb_sysctls);
37	if (nfs_callback_sysctl_table == NULL)
38		return -ENOMEM;
39	return 0;
40}
41
42void nfs_unregister_sysctl(void)
43{
44	unregister_sysctl_table(nfs_callback_sysctl_table);
45	nfs_callback_sysctl_table = NULL;
46}

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * linux/fs/nfs/sysctl.c
 4 *
 5 * Sysctl interface to NFS parameters
 6 */
 7#include <linux/types.h>
 8#include <linux/linkage.h>
 9#include <linux/ctype.h>
10#include <linux/fs.h>
11#include <linux/sysctl.h>
12#include <linux/module.h>
13#include <linux/nfs_fs.h>
14
15static struct ctl_table_header *nfs_callback_sysctl_table;
16
17static struct ctl_table nfs_cb_sysctls[] = {
18	{
19		.procname	= "nfs_mountpoint_timeout",
20		.data		= &nfs_mountpoint_expiry_timeout,
21		.maxlen		= sizeof(nfs_mountpoint_expiry_timeout),
22		.mode		= 0644,
23		.proc_handler	= proc_dointvec_jiffies,
24	},
25	{
26		.procname	= "nfs_congestion_kb",
27		.data		= &nfs_congestion_kb,
28		.maxlen		= sizeof(nfs_congestion_kb),
29		.mode		= 0644,
30		.proc_handler	= proc_dointvec,
31	},
32	{ }
33};
34
35static struct ctl_table nfs_cb_sysctl_dir[] = {
36	{
37		.procname = "nfs",
38		.mode = 0555,
39		.child = nfs_cb_sysctls,
40	},
41	{ }
42};
43
44static struct ctl_table nfs_cb_sysctl_root[] = {
45	{
46		.procname = "fs",
47		.mode = 0555,
48		.child = nfs_cb_sysctl_dir,
49	},
50	{ }
51};
52
53int nfs_register_sysctl(void)
54{
55	nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
56	if (nfs_callback_sysctl_table == NULL)
57		return -ENOMEM;
58	return 0;
59}
60
61void nfs_unregister_sysctl(void)
62{
63	unregister_sysctl_table(nfs_callback_sysctl_table);
64	nfs_callback_sysctl_table = NULL;
65}