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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * 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 proc_ops rpc_proc_ops = {
	.proc_open	= rpc_proc_open,
	.proc_read	= seq_read,
	.proc_lseek	= seq_lseek,
	.proc_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);
	if (task->tk_status < 0)
		op_metrics->om_error_status++;

	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);
	a->om_error_status += b->om_error_status;
}

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 %llu %llu %llu %llu %llu %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),
		   stats->om_error_status);
}

static int do_print_stats(struct rpc_clnt *clnt, struct rpc_xprt *xprt, void *seqv)
{
	struct seq_file *seq = seqv;

	xprt->ops->print_stats(xprt, seq);
	return 0;
}

void rpc_clnt_show_stats(struct seq_file *seq, struct rpc_clnt *clnt)
{
	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);

	rpc_clnt_iterate_for_each_xprt(clnt, do_print_stats, seq);

	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 proc_ops *proc_ops)
{
	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, proc_ops, 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_ops);
}
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 proc_ops *proc_ops)
{
	return do_register(net, statp->program->pg_name, statp, proc_ops);
}
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
457c8996	1	// SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	/*
	3	* linux/net/sunrpc/stats.c
	4	*
	5	* procfs-based user access to generic RPC statistics. The stats files
	6	* reside in /proc/net/rpc.
	7	*
	8	* The read routines assume that the buffer passed in is just big enough.
	9	* If you implement an RPC service that has its own stats routine which
	10	* appends the generic RPC stats, make sure you don't exceed the PAGE_SIZE
	11	* limit.
	12	*
	13	* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
	14	*/
	15
	16	#include <linux/module.h>
5a0e3ad6	17	#include <linux/slab.h>
1da177e4 LT	18
	19	#include <linux/init.h>
	20	#include <linux/kernel.h>
1da177e4 LT	21	#include <linux/proc_fs.h>
	22	#include <linux/seq_file.h>
	23	#include <linux/sunrpc/clnt.h>
	24	#include <linux/sunrpc/svcsock.h>
11c556b3	25	#include <linux/sunrpc/metrics.h>
2446ab60	26	#include <linux/rcupdate.h>
1da177e4	27
40bf7eb3 CL	28	#include <trace/events/sunrpc.h>
40bf7eb3 CL	29
4f42d0d5	30	#include "netns.h"
1da177e4	31
4f42d0d5	32	#define RPCDBG_FACILITY RPCDBG_MISC
1da177e4 LT	33
	34	/*
	35	* Get RPC client stats
	36	*/
	37	static int rpc_proc_show(struct seq_file seq, void v) {
	38	const struct rpc_stat *statp = seq->private;
	39	const struct rpc_program *prog = statp->program;
ea339d46	40	unsigned int i, j;
1da177e4 LT	41
1da177e4 LT	42	seq_printf(seq,
49e31cba	43	"net %u %u %u %u\n",
1da177e4 LT	44	statp->netcnt,
	45	statp->netudpcnt,
	46	statp->nettcpcnt,
	47	statp->nettcpconn);
	48	seq_printf(seq,
49e31cba	49	"rpc %u %u %u\n",
1da177e4 LT	50	statp->rpccnt,
	51	statp->rpcretrans,
	52	statp->rpcauthrefresh);
	53
	54	for (i = 0; i < prog->nrvers; i++) {
	55	const struct rpc_version *vers = prog->version[i];
	56	if (!vers)
	57	continue;
49e31cba	58	seq_printf(seq, "proc%u %u",
1da177e4 LT	59	vers->number, vers->nrprocs);
1da177e4 LT	60	for (j = 0; j < vers->nrprocs; j++)
1c5876dd	61	seq_printf(seq, " %u", vers->counts[j]);
1da177e4 LT	62	seq_putc(seq, '\n');
	63	}
	64	return 0;
	65	}
	66
	67	static int rpc_proc_open(struct inode inode, struct file file)
	68	{
d9dda78b	69	return single_open(file, rpc_proc_show, PDE_DATA(inode));
1da177e4 LT	70	}
1da177e4 LT	71
97a32539 AD	72	static const struct proc_ops rpc_proc_ops = {
	73	.proc_open = rpc_proc_open,
	74	.proc_read = seq_read,
	75	.proc_lseek = seq_lseek,
	76	.proc_release = single_release,
1da177e4 LT	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);
a332518f DW	179	if (task->tk_status < 0)
a332518f DW	180	op_metrics->om_error_status++;
edef1297 CL	181
edef1297 CL	182	spin_unlock(&op_metrics->om_lock);
40bf7eb3 CL	183
40bf7eb3 CL	184	trace_rpc_stats_latency(req->rq_task, backlog, req->rq_rtt, execute);
11c556b3	185	}
840210fc WAA	186	EXPORT_SYMBOL_GPL(rpc_count_iostats_metrics);
	187
	188	/**
	189	* rpc_count_iostats - tally up per-task stats
	190	* @task: completed rpc_task
	191	* @stats: array of stat structures
	192	*
	193	* Uses the statidx from @task
	194	*/
	195	void rpc_count_iostats(const struct rpc_task task, struct rpc_iostats stats)
	196	{
	197	rpc_count_iostats_metrics(task,
	198	&stats[task->tk_msg.rpc_proc->p_statidx]);
	199	}
0a702195	200	EXPORT_SYMBOL_GPL(rpc_count_iostats);
11c556b3	201
ec535ce1	202	static void _print_name(struct seq_file *seq, unsigned int op,
499b4988	203	const struct rpc_procinfo *procs)
cc0175c1 CL	204	{
	205	if (procs[op].p_name)
	206	seq_printf(seq, "\t%12s: ", procs[op].p_name);
	207	else if (op == 0)
	208	seq_printf(seq, "\t NULL: ");
	209	else
	210	seq_printf(seq, "\t%12u: ", op);
	211	}
	212
189e1955 DW	213	static void _add_rpc_iostats(struct rpc_iostats a, struct rpc_iostats b)
	214	{
	215	a->om_ops += b->om_ops;
	216	a->om_ntrans += b->om_ntrans;
	217	a->om_timeouts += b->om_timeouts;
	218	a->om_bytes_sent += b->om_bytes_sent;
	219	a->om_bytes_recv += b->om_bytes_recv;
	220	a->om_queue = ktime_add(a->om_queue, b->om_queue);
	221	a->om_rtt = ktime_add(a->om_rtt, b->om_rtt);
	222	a->om_execute = ktime_add(a->om_execute, b->om_execute);
a332518f	223	a->om_error_status += b->om_error_status;
189e1955 DW	224	}
189e1955 DW	225
acdce5fb DW	226	static void _print_rpc_iostats(struct seq_file seq, struct rpc_iostats stats,
	227	int op, const struct rpc_procinfo *procs)
	228	{
	229	_print_name(seq, op, procs);
a332518f	230	seq_printf(seq, "%lu %lu %lu %llu %llu %llu %llu %llu %lu\n",
acdce5fb DW	231	stats->om_ops,
	232	stats->om_ntrans,
	233	stats->om_timeouts,
	234	stats->om_bytes_sent,
	235	stats->om_bytes_recv,
	236	ktime_to_ms(stats->om_queue),
	237	ktime_to_ms(stats->om_rtt),
a332518f DW	238	ktime_to_ms(stats->om_execute),
a332518f DW	239	stats->om_error_status);
acdce5fb DW	240	}
acdce5fb DW	241
10db5691 N	242	static int do_print_stats(struct rpc_clnt clnt, struct rpc_xprt xprt, void *seqv)
	243	{
	244	struct seq_file *seq = seqv;
	245
	246	xprt->ops->print_stats(xprt, seq);
	247	return 0;
	248	}
	249
016583d7	250	void rpc_clnt_show_stats(struct seq_file seq, struct rpc_clnt clnt)
11c556b3	251	{
11c556b3 CL	252	unsigned int op, maxproc = clnt->cl_maxproc;
11c556b3 CL	253
016583d7	254	if (!clnt->cl_metrics)
11c556b3 CL	255	return;
	256
	257	seq_printf(seq, "\tRPC iostats version: %s ", RPC_IOSTATS_VERS);
	258	seq_printf(seq, "p/v: %u/%u (%s)\n",
55909f21	259	clnt->cl_prog, clnt->cl_vers, clnt->cl_program->name);
11c556b3	260
10db5691	261	rpc_clnt_iterate_for_each_xprt(clnt, do_print_stats, seq);
11c556b3 CL	262
	263	seq_printf(seq, "\tper-op statistics\n");
	264	for (op = 0; op < maxproc; op++) {
016583d7 DW	265	struct rpc_iostats stats = {};
	266	struct rpc_clnt *next = clnt;
	267	do {
	268	_add_rpc_iostats(&stats, &next->cl_metrics[op]);
	269	if (next == next->cl_parent)
	270	break;
	271	next = next->cl_parent;
	272	} while (next);
	273	_print_rpc_iostats(seq, &stats, op, clnt->cl_procinfo);
11c556b3 CL	274	}
11c556b3 CL	275	}
016583d7	276	EXPORT_SYMBOL_GPL(rpc_clnt_show_stats);
11c556b3	277
1da177e4 LT	278	/*
	279	* Register/unregister RPC proc files
	280	*/
	281	static inline struct proc_dir_entry *
ec7652aa	282	do_register(struct net net, const char name, void *data,
97a32539	283	const struct proc_ops *proc_ops)
1da177e4	284	{
4f42d0d5	285	struct sunrpc_net *sn;
1da177e4	286
4f42d0d5	287	dprintk("RPC: registering /proc/net/rpc/%s\n", name);
ec7652aa	288	sn = net_generic(net, sunrpc_net_id);
97a32539	289	return proc_create_data(name, 0, sn->proc_net_rpc, proc_ops, data);
1da177e4 LT	290	}
	291
	292	struct proc_dir_entry *
ec7652aa	293	rpc_proc_register(struct net net, struct rpc_stat statp)
1da177e4	294	{
97a32539	295	return do_register(net, statp->program->name, statp, &rpc_proc_ops);
1da177e4	296	}
e8914c65	297	EXPORT_SYMBOL_GPL(rpc_proc_register);
1da177e4 LT	298
1da177e4 LT	299	void
ec7652aa	300	rpc_proc_unregister(struct net net, const char name)
1da177e4	301	{
4f42d0d5 PE	302	struct sunrpc_net *sn;
4f42d0d5 PE	303
ec7652aa	304	sn = net_generic(net, sunrpc_net_id);
4f42d0d5	305	remove_proc_entry(name, sn->proc_net_rpc);
1da177e4	306	}
e8914c65	307	EXPORT_SYMBOL_GPL(rpc_proc_unregister);
1da177e4 LT	308
1da177e4 LT	309	struct proc_dir_entry *
97a32539	310	svc_proc_register(struct net net, struct svc_stat statp, const struct proc_ops *proc_ops)
1da177e4	311	{
97a32539	312	return do_register(net, statp->program->pg_name, statp, proc_ops);
1da177e4	313	}
24c3767e	314	EXPORT_SYMBOL_GPL(svc_proc_register);
1da177e4 LT	315
1da177e4 LT	316	void
246590f5	317	svc_proc_unregister(struct net net, const char name)
1da177e4	318	{
4f42d0d5 PE	319	struct sunrpc_net *sn;
4f42d0d5 PE	320
246590f5	321	sn = net_generic(net, sunrpc_net_id);
4f42d0d5	322	remove_proc_entry(name, sn->proc_net_rpc);
1da177e4	323	}
24c3767e	324	EXPORT_SYMBOL_GPL(svc_proc_unregister);
1da177e4	325
4f42d0d5	326	int rpc_proc_init(struct net *net)
1da177e4	327	{
4f42d0d5 PE	328	struct sunrpc_net *sn;
4f42d0d5 PE	329
46121cf7	330	dprintk("RPC: registering /proc/net/rpc\n");
4f42d0d5 PE	331	sn = net_generic(net, sunrpc_net_id);
	332	sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
	333	if (sn->proc_net_rpc == NULL)
	334	return -ENOMEM;
	335
	336	return 0;
1da177e4 LT	337	}
1da177e4 LT	338
4f42d0d5	339	void rpc_proc_exit(struct net *net)
1da177e4	340	{
46121cf7	341	dprintk("RPC: unregistering /proc/net/rpc\n");
4f42d0d5	342	remove_proc_entry("rpc", net->proc_net);
1da177e4	343	}