[mirror_ubuntu-artful-kernel.git] / fs / nfs / nfs4sysctl.c

/*
 * 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_jiffies,
	},
	{ }
};

static struct ctl_table nfs4_cb_sysctl_dir[] = {
	{
		.procname = "nfs",
		.mode = 0555,
		.child = nfs4_cb_sysctls,
	},
	{ }
};

static struct ctl_table nfs4_cb_sysctl_root[] = {
	{
		.procname = "fs",
		.mode = 0555,
		.child = nfs4_cb_sysctl_dir,
	},
	{ }
};

int nfs4_register_sysctl(void)
{
	nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root);
	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;
}
Commit	Line	Data
466bfe7f BS	1	/*
	2	* linux/fs/nfs/nfs4sysctl.c
	3	*
	4	* Sysctl interface to NFS v4 parameters
	5	*
	6	* Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com>
	7	*/
	8	#include <linux/sysctl.h>
466bfe7f BS	9	#include <linux/nfs_fs.h>
466bfe7f BS	10
22e24309	11	#include "nfs4_fs.h"
40c64c26	12	#include "nfs4idmap.h"
466bfe7f BS	13	#include "callback.h"
466bfe7f BS	14
ed476752	15	static const int nfs_set_port_min;
466bfe7f BS	16	static const int nfs_set_port_max = 65535;
	17	static struct ctl_table_header *nfs4_callback_sysctl_table;
	18
f5102e56	19	static struct ctl_table nfs4_cb_sysctls[] = {
466bfe7f BS	20	{
	21	.procname = "nfs_callback_tcpport",
	22	.data = &nfs_callback_set_tcpport,
	23	.maxlen = sizeof(int),
	24	.mode = 0644,
	25	.proc_handler = proc_dointvec_minmax,
	26	.extra1 = (int *)&nfs_set_port_min,
	27	.extra2 = (int *)&nfs_set_port_max,
	28	},
	29	{
	30	.procname = "idmap_cache_timeout",
	31	.data = &nfs_idmap_cache_timeout,
	32	.maxlen = sizeof(int),
	33	.mode = 0644,
	34	.proc_handler = proc_dointvec_jiffies,
	35	},
	36	{ }
	37	};
	38
f5102e56	39	static struct ctl_table nfs4_cb_sysctl_dir[] = {
466bfe7f BS	40	{
	41	.procname = "nfs",
	42	.mode = 0555,
	43	.child = nfs4_cb_sysctls,
	44	},
	45	{ }
	46	};
	47
f5102e56	48	static struct ctl_table nfs4_cb_sysctl_root[] = {
466bfe7f BS	49	{
	50	.procname = "fs",
	51	.mode = 0555,
	52	.child = nfs4_cb_sysctl_dir,
	53	},
	54	{ }
	55	};
	56
	57	int nfs4_register_sysctl(void)
	58	{
	59	nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root);
	60	if (nfs4_callback_sysctl_table == NULL)
	61	return -ENOMEM;
	62	return 0;
	63	}
	64
	65	void nfs4_unregister_sysctl(void)
	66	{
	67	unregister_sysctl_table(nfs4_callback_sysctl_table);
	68	nfs4_callback_sysctl_table = NULL;
	69	}