[linux-2.6-block.git] / net / sunrpc / stats.c

/*
 * linux/net/sunrpc/stats.c
 *
 * procfs-based user access to generic RPC statistics. The stats files
 * reside in /proc/net/rpc.
 *
 * The read routines assume that the buffer passed in is just big enough.
 * If you implement an RPC service that has its own stats routine which
 * appends the generic RPC stats, make sure you don't exceed the PAGE_SIZE
 * limit.
 *
 * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
 */

#include <linux/module.h>
#include <linux/slab.h>

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/sunrpc/metrics.h>
#include <linux/rcupdate.h>

#include <trace/events/sunrpc.h>

#include "netns.h"

#define RPCDBG_FACILITY	RPCDBG_MISC

/*
 * Get RPC client stats
 */
static int rpc_proc_show(struct seq_file *seq, void *v) {
	const struct rpc_stat	*statp = seq->private;
	const struct rpc_program *prog = statp->program;
	unsigned int i, j;

	seq_printf(seq,
		"net %u %u %u %u\n",
			statp->netcnt,
			statp->netudpcnt,
			statp->nettcpcnt,
			statp->nettcpconn);
	seq_printf(seq,
		"rpc %u %u %u\n",
			statp->rpccnt,
			statp->rpcretrans,
			statp->rpcauthrefresh);

	for (i = 0; i < prog->nrvers; i++) {
		const struct rpc_version *vers = prog->version[i];
		if (!vers)
			continue;
		seq_printf(seq, "proc%u %u",
					vers->number, vers->nrprocs);
		for (j = 0; j < vers->nrprocs; j++)
			seq_printf(seq, " %u", vers->counts[j]);
		seq_putc(seq, '\n');
	}
	return 0;
}

static int rpc_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, rpc_proc_show, PDE_DATA(inode));
}

static const struct file_operations rpc_proc_fops = {
	.owner = THIS_MODULE,
	.open = rpc_proc_open,
	.read  = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

/*
 * Get RPC server stats
 */
void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp)
{
	const struct svc_program *prog = statp->program;
	const struct svc_version *vers;
	unsigned int i, j;

	seq_printf(seq,
		"net %u %u %u %u\n",
			statp->netcnt,
			statp->netudpcnt,
			statp->nettcpcnt,
			statp->nettcpconn);
	seq_printf(seq,
		"rpc %u %u %u %u %u\n",
			statp->rpccnt,
			statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
			statp->rpcbadfmt,
			statp->rpcbadauth,
			statp->rpcbadclnt);

	for (i = 0; i < prog->pg_nvers; i++) {
		vers = prog->pg_vers[i];
		if (!vers)
			continue;
		seq_printf(seq, "proc%d %u", i, vers->vs_nproc);
		for (j = 0; j < vers->vs_nproc; j++)
			seq_printf(seq, " %u", vers->vs_count[j]);
		seq_putc(seq, '\n');
	}
}
EXPORT_SYMBOL_GPL(svc_seq_show);

/**
 * rpc_alloc_iostats - allocate an rpc_iostats structure
 * @clnt: RPC program, version, and xprt
 *
 */
struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt)
{
	struct rpc_iostats *stats;
	int i;

	stats = kcalloc(clnt->cl_maxproc, sizeof(*stats), GFP_KERNEL);
	if (stats) {
		for (i = 0; i < clnt->cl_maxproc; i++)
			spin_lock_init(&stats[i].om_lock);
	}
	return stats;
}
EXPORT_SYMBOL_GPL(rpc_alloc_iostats);

/**
 * rpc_free_iostats - release an rpc_iostats structure
 * @stats: doomed rpc_iostats structure
 *
 */
void rpc_free_iostats(struct rpc_iostats *stats)
{
	kfree(stats);
}
EXPORT_SYMBOL_GPL(rpc_free_iostats);

/**
 * rpc_count_iostats_metrics - tally up per-task stats
 * @task: completed rpc_task
 * @op_metrics: stat structure for OP that will accumulate stats from @task
 */
void rpc_count_iostats_metrics(const struct rpc_task *task,
			       struct rpc_iostats *op_metrics)
{
	struct rpc_rqst *req = task->tk_rqstp;
	ktime_t backlog, execute, now;

	if (!op_metrics || !req)
		return;

	now = ktime_get();
	spin_lock(&op_metrics->om_lock);

	op_metrics->om_ops++;
	/* kernel API: om_ops must never become larger than om_ntrans */
	op_metrics->om_ntrans += max(req->rq_ntrans, 1);
	op_metrics->om_timeouts += task->tk_timeouts;

	op_metrics->om_bytes_sent += req->rq_xmit_bytes_sent;
	op_metrics->om_bytes_recv += req->rq_reply_bytes_recvd;

	backlog = 0;
	if (ktime_to_ns(req->rq_xtime)) {
		backlog = ktime_sub(req->rq_xtime, task->tk_start);
		op_metrics->om_queue = ktime_add(op_metrics->om_queue, backlog);
	}

	op_metrics->om_rtt = ktime_add(op_metrics->om_rtt, req->rq_rtt);

	execute = ktime_sub(now, task->tk_start);
	op_metrics->om_execute = ktime_add(op_metrics->om_execute, execute);

	spin_unlock(&op_metrics->om_lock);

	trace_rpc_stats_latency(req->rq_task, backlog, req->rq_rtt, execute);
}
EXPORT_SYMBOL_GPL(rpc_count_iostats_metrics);

/**
 * rpc_count_iostats - tally up per-task stats
 * @task: completed rpc_task
 * @stats: array of stat structures
 *
 * Uses the statidx from @task
 */
void rpc_count_iostats(const struct rpc_task *task, struct rpc_iostats *stats)
{
	rpc_count_iostats_metrics(task,
				  &stats[task->tk_msg.rpc_proc->p_statidx]);
}
EXPORT_SYMBOL_GPL(rpc_count_iostats);

static void _print_name(struct seq_file *seq, unsigned int op,
			const struct rpc_procinfo *procs)
{
	if (procs[op].p_name)
		seq_printf(seq, "\t%12s: ", procs[op].p_name);
	else if (op == 0)
		seq_printf(seq, "\t        NULL: ");
	else
		seq_printf(seq, "\t%12u: ", op);
}

static void _add_rpc_iostats(struct rpc_iostats *a, struct rpc_iostats *b)
{
	a->om_ops += b->om_ops;
	a->om_ntrans += b->om_ntrans;
	a->om_timeouts += b->om_timeouts;
	a->om_bytes_sent += b->om_bytes_sent;
	a->om_bytes_recv += b->om_bytes_recv;
	a->om_queue = ktime_add(a->om_queue, b->om_queue);
	a->om_rtt = ktime_add(a->om_rtt, b->om_rtt);
	a->om_execute = ktime_add(a->om_execute, b->om_execute);
}

static void _print_rpc_iostats(struct seq_file *seq, struct rpc_iostats *stats,
			       int op, const struct rpc_procinfo *procs)
{
	_print_name(seq, op, procs);
	seq_printf(seq, "%lu %lu %lu %Lu %Lu %Lu %Lu %Lu\n",
		   stats->om_ops,
		   stats->om_ntrans,
		   stats->om_timeouts,
		   stats->om_bytes_sent,
		   stats->om_bytes_recv,
		   ktime_to_ms(stats->om_queue),
		   ktime_to_ms(stats->om_rtt),
		   ktime_to_ms(stats->om_execute));
}

void rpc_clnt_show_stats(struct seq_file *seq, struct rpc_clnt *clnt)
{
	struct rpc_xprt *xprt;
	unsigned int op, maxproc = clnt->cl_maxproc;

	if (!clnt->cl_metrics)
		return;

	seq_printf(seq, "\tRPC iostats version: %s  ", RPC_IOSTATS_VERS);
	seq_printf(seq, "p/v: %u/%u (%s)\n",
			clnt->cl_prog, clnt->cl_vers, clnt->cl_program->name);

	rcu_read_lock();
	xprt = rcu_dereference(clnt->cl_xprt);
	if (xprt)
		xprt->ops->print_stats(xprt, seq);
	rcu_read_unlock();

	seq_printf(seq, "\tper-op statistics\n");
	for (op = 0; op < maxproc; op++) {
		struct rpc_iostats stats = {};
		struct rpc_clnt *next = clnt;
		do {
			_add_rpc_iostats(&stats, &next->cl_metrics[op]);
			if (next == next->cl_parent)
				break;
			next = next->cl_parent;
		} while (next);
		_print_rpc_iostats(seq, &stats, op, clnt->cl_procinfo);
	}
}
EXPORT_SYMBOL_GPL(rpc_clnt_show_stats);

/*
 * Register/unregister RPC proc files
 */
static inline struct proc_dir_entry *
do_register(struct net *net, const char *name, void *data,
	    const struct file_operations *fops)
{
	struct sunrpc_net *sn;

	dprintk("RPC:       registering /proc/net/rpc/%s\n", name);
	sn = net_generic(net, sunrpc_net_id);
	return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
}

struct proc_dir_entry *
rpc_proc_register(struct net *net, struct rpc_stat *statp)
{
	return do_register(net, statp->program->name, statp, &rpc_proc_fops);
}
EXPORT_SYMBOL_GPL(rpc_proc_register);

void
rpc_proc_unregister(struct net *net, const char *name)
{
	struct sunrpc_net *sn;

	sn = net_generic(net, sunrpc_net_id);
	remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(rpc_proc_unregister);

struct proc_dir_entry *
svc_proc_register(struct net *net, struct svc_stat *statp, const struct file_operations *fops)
{
	return do_register(net, statp->program->pg_name, statp, fops);
}
EXPORT_SYMBOL_GPL(svc_proc_register);

void
svc_proc_unregister(struct net *net, const char *name)
{
	struct sunrpc_net *sn;

	sn = net_generic(net, sunrpc_net_id);
	remove_proc_entry(name, sn->proc_net_rpc);
}
EXPORT_SYMBOL_GPL(svc_proc_unregister);

int rpc_proc_init(struct net *net)
{
	struct sunrpc_net *sn;

	dprintk("RPC:       registering /proc/net/rpc\n");
	sn = net_generic(net, sunrpc_net_id);
	sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
	if (sn->proc_net_rpc == NULL)
		return -ENOMEM;

	return 0;
}

void rpc_proc_exit(struct net *net)
{
	dprintk("RPC:       unregistering /proc/net/rpc\n");
	remove_proc_entry("rpc", net->proc_net);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/net/sunrpc/stats.c
	3	*
	4	* procfs-based user access to generic RPC statistics. The stats files
	5	* reside in /proc/net/rpc.
	6	*
	7	* The read routines assume that the buffer passed in is just big enough.
	8	* If you implement an RPC service that has its own stats routine which
	9	* appends the generic RPC stats, make sure you don't exceed the PAGE_SIZE
	10	* limit.
	11	*
	12	* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
	13	*/
	14
	15	#include <linux/module.h>
5a0e3ad6	16	#include <linux/slab.h>
1da177e4 LT	17
	18	#include <linux/init.h>
	19	#include <linux/kernel.h>
1da177e4 LT	20	#include <linux/proc_fs.h>
	21	#include <linux/seq_file.h>
	22	#include <linux/sunrpc/clnt.h>
	23	#include <linux/sunrpc/svcsock.h>
11c556b3	24	#include <linux/sunrpc/metrics.h>
2446ab60	25	#include <linux/rcupdate.h>
1da177e4	26
40bf7eb3 CL	27	#include <trace/events/sunrpc.h>
40bf7eb3 CL	28
4f42d0d5	29	#include "netns.h"
1da177e4	30
4f42d0d5	31	#define RPCDBG_FACILITY RPCDBG_MISC
1da177e4 LT	32
	33	/*
	34	* Get RPC client stats
	35	*/
	36	static int rpc_proc_show(struct seq_file seq, void v) {
	37	const struct rpc_stat *statp = seq->private;
	38	const struct rpc_program *prog = statp->program;
ea339d46	39	unsigned int i, j;
1da177e4 LT	40
1da177e4 LT	41	seq_printf(seq,
49e31cba	42	"net %u %u %u %u\n",
1da177e4 LT	43	statp->netcnt,
	44	statp->netudpcnt,
	45	statp->nettcpcnt,
	46	statp->nettcpconn);
	47	seq_printf(seq,
49e31cba	48	"rpc %u %u %u\n",
1da177e4 LT	49	statp->rpccnt,
	50	statp->rpcretrans,
	51	statp->rpcauthrefresh);
	52
	53	for (i = 0; i < prog->nrvers; i++) {
	54	const struct rpc_version *vers = prog->version[i];
	55	if (!vers)
	56	continue;
49e31cba	57	seq_printf(seq, "proc%u %u",
1da177e4 LT	58	vers->number, vers->nrprocs);
1da177e4 LT	59	for (j = 0; j < vers->nrprocs; j++)
1c5876dd	60	seq_printf(seq, " %u", vers->counts[j]);
1da177e4 LT	61	seq_putc(seq, '\n');
	62	}
	63	return 0;
	64	}
	65
	66	static int rpc_proc_open(struct inode inode, struct file file)
	67	{
d9dda78b	68	return single_open(file, rpc_proc_show, PDE_DATA(inode));
1da177e4 LT	69	}
1da177e4 LT	70
da7071d7	71	static const struct file_operations rpc_proc_fops = {
1da177e4 LT	72	.owner = THIS_MODULE,
	73	.open = rpc_proc_open,
	74	.read = seq_read,
	75	.llseek = seq_lseek,
	76	.release = single_release,
	77	};
	78
	79	/*
	80	* Get RPC server stats
	81	*/
7fd38af9 CH	82	void svc_seq_show(struct seq_file seq, const struct svc_stat statp)
7fd38af9 CH	83	{
1da177e4	84	const struct svc_program *prog = statp->program;
1da177e4	85	const struct svc_version *vers;
ea339d46	86	unsigned int i, j;
1da177e4 LT	87
1da177e4 LT	88	seq_printf(seq,
49e31cba	89	"net %u %u %u %u\n",
1da177e4 LT	90	statp->netcnt,
	91	statp->netudpcnt,
	92	statp->nettcpcnt,
	93	statp->nettcpconn);
	94	seq_printf(seq,
49e31cba	95	"rpc %u %u %u %u %u\n",
1da177e4 LT	96	statp->rpccnt,
	97	statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
	98	statp->rpcbadfmt,
	99	statp->rpcbadauth,
	100	statp->rpcbadclnt);
	101
	102	for (i = 0; i < prog->pg_nvers; i++) {
7fd38af9 CH	103	vers = prog->pg_vers[i];
7fd38af9 CH	104	if (!vers)
1da177e4	105	continue;
49e31cba	106	seq_printf(seq, "proc%d %u", i, vers->vs_nproc);
7fd38af9 CH	107	for (j = 0; j < vers->vs_nproc; j++)
7fd38af9 CH	108	seq_printf(seq, " %u", vers->vs_count[j]);
1da177e4 LT	109	seq_putc(seq, '\n');
	110	}
	111	}
24c3767e	112	EXPORT_SYMBOL_GPL(svc_seq_show);
1da177e4	113
11c556b3 CL	114	/**
	115	* rpc_alloc_iostats - allocate an rpc_iostats structure
	116	* @clnt: RPC program, version, and xprt
	117	*
	118	*/
	119	struct rpc_iostats rpc_alloc_iostats(struct rpc_clnt clnt)
	120	{
edef1297 CL	121	struct rpc_iostats *stats;
	122	int i;
	123
	124	stats = kcalloc(clnt->cl_maxproc, sizeof(*stats), GFP_KERNEL);
	125	if (stats) {
	126	for (i = 0; i < clnt->cl_maxproc; i++)
	127	spin_lock_init(&stats[i].om_lock);
	128	}
	129	return stats;
11c556b3	130	}
e8914c65	131	EXPORT_SYMBOL_GPL(rpc_alloc_iostats);
11c556b3 CL	132
	133	/**
	134	* rpc_free_iostats - release an rpc_iostats structure
	135	* @stats: doomed rpc_iostats structure
	136	*
	137	*/
	138	void rpc_free_iostats(struct rpc_iostats *stats)
	139	{
	140	kfree(stats);
	141	}
e8914c65	142	EXPORT_SYMBOL_GPL(rpc_free_iostats);
11c556b3 CL	143
11c556b3 CL	144	/**
840210fc	145	* rpc_count_iostats_metrics - tally up per-task stats
11c556b3	146	* @task: completed rpc_task
840210fc	147	* @op_metrics: stat structure for OP that will accumulate stats from @task
11c556b3	148	*/
840210fc WAA	149	void rpc_count_iostats_metrics(const struct rpc_task *task,
840210fc WAA	150	struct rpc_iostats *op_metrics)
11c556b3 CL	151	{
11c556b3 CL	152	struct rpc_rqst *req = task->tk_rqstp;
40bf7eb3	153	ktime_t backlog, execute, now;
11c556b3	154
840210fc	155	if (!op_metrics \|\| !req)
11c556b3	156	return;
55ae1aab	157
edef1297	158	now = ktime_get();
edef1297 CL	159	spin_lock(&op_metrics->om_lock);
edef1297 CL	160
11c556b3	161	op_metrics->om_ops++;
ae09531d CL	162	/* kernel API: om_ops must never become larger than om_ntrans */
ae09531d CL	163	op_metrics->om_ntrans += max(req->rq_ntrans, 1);
11c556b3 CL	164	op_metrics->om_timeouts += task->tk_timeouts;
11c556b3 CL	165
d60dbb20	166	op_metrics->om_bytes_sent += req->rq_xmit_bytes_sent;
dd2b63d0	167	op_metrics->om_bytes_recv += req->rq_reply_bytes_recvd;
11c556b3	168
40bf7eb3	169	backlog = 0;
ae09531d	170	if (ktime_to_ns(req->rq_xtime)) {
40bf7eb3 CL	171	backlog = ktime_sub(req->rq_xtime, task->tk_start);
40bf7eb3 CL	172	op_metrics->om_queue = ktime_add(op_metrics->om_queue, backlog);
ae09531d	173	}
40bf7eb3	174
d60dbb20	175	op_metrics->om_rtt = ktime_add(op_metrics->om_rtt, req->rq_rtt);
11c556b3	176
40bf7eb3 CL	177	execute = ktime_sub(now, task->tk_start);
40bf7eb3 CL	178	op_metrics->om_execute = ktime_add(op_metrics->om_execute, execute);
edef1297 CL	179
edef1297 CL	180	spin_unlock(&op_metrics->om_lock);
40bf7eb3 CL	181
40bf7eb3 CL	182	trace_rpc_stats_latency(req->rq_task, backlog, req->rq_rtt, execute);
11c556b3	183	}
840210fc WAA	184	EXPORT_SYMBOL_GPL(rpc_count_iostats_metrics);
	185
	186	/**
	187	* rpc_count_iostats - tally up per-task stats
	188	* @task: completed rpc_task
	189	* @stats: array of stat structures
	190	*
	191	* Uses the statidx from @task
	192	*/
	193	void rpc_count_iostats(const struct rpc_task task, struct rpc_iostats stats)
	194	{
	195	rpc_count_iostats_metrics(task,
	196	&stats[task->tk_msg.rpc_proc->p_statidx]);
	197	}
0a702195	198	EXPORT_SYMBOL_GPL(rpc_count_iostats);
11c556b3	199
ec535ce1	200	static void _print_name(struct seq_file *seq, unsigned int op,
499b4988	201	const struct rpc_procinfo *procs)
cc0175c1 CL	202	{
	203	if (procs[op].p_name)
	204	seq_printf(seq, "\t%12s: ", procs[op].p_name);
	205	else if (op == 0)
	206	seq_printf(seq, "\t NULL: ");
	207	else
	208	seq_printf(seq, "\t%12u: ", op);
	209	}
	210
189e1955 DW	211	static void _add_rpc_iostats(struct rpc_iostats a, struct rpc_iostats b)
	212	{
	213	a->om_ops += b->om_ops;
	214	a->om_ntrans += b->om_ntrans;
	215	a->om_timeouts += b->om_timeouts;
	216	a->om_bytes_sent += b->om_bytes_sent;
	217	a->om_bytes_recv += b->om_bytes_recv;
	218	a->om_queue = ktime_add(a->om_queue, b->om_queue);
	219	a->om_rtt = ktime_add(a->om_rtt, b->om_rtt);
	220	a->om_execute = ktime_add(a->om_execute, b->om_execute);
	221	}
	222
acdce5fb DW	223	static void _print_rpc_iostats(struct seq_file seq, struct rpc_iostats stats,
	224	int op, const struct rpc_procinfo *procs)
	225	{
	226	_print_name(seq, op, procs);
	227	seq_printf(seq, "%lu %lu %lu %Lu %Lu %Lu %Lu %Lu\n",
	228	stats->om_ops,
	229	stats->om_ntrans,
	230	stats->om_timeouts,
	231	stats->om_bytes_sent,
	232	stats->om_bytes_recv,
	233	ktime_to_ms(stats->om_queue),
	234	ktime_to_ms(stats->om_rtt),
	235	ktime_to_ms(stats->om_execute));
	236	}
	237
016583d7	238	void rpc_clnt_show_stats(struct seq_file seq, struct rpc_clnt clnt)
11c556b3	239	{
2446ab60	240	struct rpc_xprt *xprt;
11c556b3 CL	241	unsigned int op, maxproc = clnt->cl_maxproc;
11c556b3 CL	242
016583d7	243	if (!clnt->cl_metrics)
11c556b3 CL	244	return;
	245
	246	seq_printf(seq, "\tRPC iostats version: %s ", RPC_IOSTATS_VERS);
	247	seq_printf(seq, "p/v: %u/%u (%s)\n",
55909f21	248	clnt->cl_prog, clnt->cl_vers, clnt->cl_program->name);
11c556b3	249
2446ab60 TM	250	rcu_read_lock();
2446ab60 TM	251	xprt = rcu_dereference(clnt->cl_xprt);
11c556b3 CL	252	if (xprt)
11c556b3 CL	253	xprt->ops->print_stats(xprt, seq);
2446ab60	254	rcu_read_unlock();
11c556b3 CL	255
	256	seq_printf(seq, "\tper-op statistics\n");
	257	for (op = 0; op < maxproc; op++) {
016583d7 DW	258	struct rpc_iostats stats = {};
	259	struct rpc_clnt *next = clnt;
	260	do {
	261	_add_rpc_iostats(&stats, &next->cl_metrics[op]);
	262	if (next == next->cl_parent)
	263	break;
	264	next = next->cl_parent;
	265	} while (next);
	266	_print_rpc_iostats(seq, &stats, op, clnt->cl_procinfo);
11c556b3 CL	267	}
11c556b3 CL	268	}
016583d7	269	EXPORT_SYMBOL_GPL(rpc_clnt_show_stats);
11c556b3	270
1da177e4 LT	271	/*
	272	* Register/unregister RPC proc files
	273	*/
	274	static inline struct proc_dir_entry *
ec7652aa SK	275	do_register(struct net net, const char name, void *data,
ec7652aa SK	276	const struct file_operations *fops)
1da177e4	277	{
4f42d0d5	278	struct sunrpc_net *sn;
1da177e4	279
4f42d0d5	280	dprintk("RPC: registering /proc/net/rpc/%s\n", name);
ec7652aa	281	sn = net_generic(net, sunrpc_net_id);
4f42d0d5	282	return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
1da177e4 LT	283	}
	284
	285	struct proc_dir_entry *
ec7652aa	286	rpc_proc_register(struct net net, struct rpc_stat statp)
1da177e4	287	{
ec7652aa	288	return do_register(net, statp->program->name, statp, &rpc_proc_fops);
1da177e4	289	}
e8914c65	290	EXPORT_SYMBOL_GPL(rpc_proc_register);
1da177e4 LT	291
1da177e4 LT	292	void
ec7652aa	293	rpc_proc_unregister(struct net net, const char name)
1da177e4	294	{
4f42d0d5 PE	295	struct sunrpc_net *sn;
4f42d0d5 PE	296
ec7652aa	297	sn = net_generic(net, sunrpc_net_id);
4f42d0d5	298	remove_proc_entry(name, sn->proc_net_rpc);
1da177e4	299	}
e8914c65	300	EXPORT_SYMBOL_GPL(rpc_proc_unregister);
1da177e4 LT	301
1da177e4 LT	302	struct proc_dir_entry *
246590f5	303	svc_proc_register(struct net net, struct svc_stat statp, const struct file_operations *fops)
1da177e4	304	{
246590f5	305	return do_register(net, statp->program->pg_name, statp, fops);
1da177e4	306	}
24c3767e	307	EXPORT_SYMBOL_GPL(svc_proc_register);
1da177e4 LT	308
1da177e4 LT	309	void
246590f5	310	svc_proc_unregister(struct net net, const char name)
1da177e4	311	{
4f42d0d5 PE	312	struct sunrpc_net *sn;
4f42d0d5 PE	313
246590f5	314	sn = net_generic(net, sunrpc_net_id);
4f42d0d5	315	remove_proc_entry(name, sn->proc_net_rpc);
1da177e4	316	}
24c3767e	317	EXPORT_SYMBOL_GPL(svc_proc_unregister);
1da177e4	318
4f42d0d5	319	int rpc_proc_init(struct net *net)
1da177e4	320	{
4f42d0d5 PE	321	struct sunrpc_net *sn;
4f42d0d5 PE	322
46121cf7	323	dprintk("RPC: registering /proc/net/rpc\n");
4f42d0d5 PE	324	sn = net_generic(net, sunrpc_net_id);
	325	sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
	326	if (sn->proc_net_rpc == NULL)
	327	return -ENOMEM;
	328
	329	return 0;
1da177e4 LT	330	}
1da177e4 LT	331
4f42d0d5	332	void rpc_proc_exit(struct net *net)
1da177e4	333	{
46121cf7	334	dprintk("RPC: unregistering /proc/net/rpc\n");
4f42d0d5	335	remove_proc_entry("rpc", net->proc_net);
1da177e4	336	}