// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/fs/nfs/sysctl.c
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*
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* Sysctl interface to NFS parameters
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*/
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#include <linux/types.h>
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#include <linux/linkage.h>
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#include <linux/ctype.h>
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#include <linux/fs.h>
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#include <linux/sysctl.h>
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#include <linux/module.h>
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#include <linux/nfs_fs.h>
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static struct ctl_table_header *nfs_callback_sysctl_table;
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static struct ctl_table nfs_cb_sysctls[] = {
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{
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.procname = "nfs_mountpoint_timeout",
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.data = &nfs_mountpoint_expiry_timeout,
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.maxlen = sizeof(nfs_mountpoint_expiry_timeout),
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.mode = 0644,
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.proc_handler = proc_dointvec_jiffies,
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},
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{
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.procname = "nfs_congestion_kb",
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.data = &nfs_congestion_kb,
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.maxlen = sizeof(nfs_congestion_kb),
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.mode = 0644,
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.proc_handler = proc_dointvec,
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},
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{ }
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};
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static struct ctl_table nfs_cb_sysctl_dir[] = {
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{
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.procname = "nfs",
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.mode = 0555,
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.child = nfs_cb_sysctls,
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},
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{ }
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};
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static struct ctl_table nfs_cb_sysctl_root[] = {
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{
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.procname = "fs",
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.mode = 0555,
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.child = nfs_cb_sysctl_dir,
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},
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{ }
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};
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int nfs_register_sysctl(void)
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{
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nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
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if (nfs_callback_sysctl_table == NULL)
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return -ENOMEM;
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return 0;
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}
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void nfs_unregister_sysctl(void)
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{
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unregister_sysctl_table(nfs_callback_sysctl_table);
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nfs_callback_sysctl_table = NULL;
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}
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