cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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nfs4sysctl.c (1464B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * linux/fs/nfs/nfs4sysctl.c
      4 *
      5 * Sysctl interface to NFS v4 parameters
      6 *
      7 * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
      8 */
      9#include <linux/sysctl.h>
     10#include <linux/nfs_fs.h>
     11
     12#include "nfs4_fs.h"
     13#include "nfs4idmap.h"
     14#include "callback.h"
     15
     16static const int nfs_set_port_min;
     17static const int nfs_set_port_max = 65535;
     18static struct ctl_table_header *nfs4_callback_sysctl_table;
     19
     20static struct ctl_table nfs4_cb_sysctls[] = {
     21	{
     22		.procname = "nfs_callback_tcpport",
     23		.data = &nfs_callback_set_tcpport,
     24		.maxlen = sizeof(int),
     25		.mode = 0644,
     26		.proc_handler = proc_dointvec_minmax,
     27		.extra1 = (int *)&nfs_set_port_min,
     28		.extra2 = (int *)&nfs_set_port_max,
     29	},
     30	{
     31		.procname = "idmap_cache_timeout",
     32		.data = &nfs_idmap_cache_timeout,
     33		.maxlen = sizeof(int),
     34		.mode = 0644,
     35		.proc_handler = proc_dointvec,
     36	},
     37	{ }
     38};
     39
     40static struct ctl_table nfs4_cb_sysctl_dir[] = {
     41	{
     42		.procname = "nfs",
     43		.mode = 0555,
     44		.child = nfs4_cb_sysctls,
     45	},
     46	{ }
     47};
     48
     49static struct ctl_table nfs4_cb_sysctl_root[] = {
     50	{
     51		.procname = "fs",
     52		.mode = 0555,
     53		.child = nfs4_cb_sysctl_dir,
     54	},
     55	{ }
     56};
     57
     58int nfs4_register_sysctl(void)
     59{
     60	nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root);
     61	if (nfs4_callback_sysctl_table == NULL)
     62		return -ENOMEM;
     63	return 0;
     64}
     65
     66void nfs4_unregister_sysctl(void)
     67{
     68	unregister_sysctl_table(nfs4_callback_sysctl_table);
     69	nfs4_callback_sysctl_table = NULL;
     70}