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
15 static struct ctl_table_header *nfs_callback_sysctl_table;
16
17 static 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 int 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
42 void nfs_unregister_sysctl(void)
43 {
44 unregister_sysctl_table(nfs_callback_sysctl_table);
45 nfs_callback_sysctl_table = NULL;
46 }
47
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.