2 * linux/net/sunrpc/stats.c
4 * procfs-based user access to generic RPC statistics. The stats files
5 * reside in /proc/net/rpc.
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
12 * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
15 #include <linux/module.h>
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/sched.h>
20 #include <linux/proc_fs.h>
21 #include <linux/seq_file.h>
22 #include <linux/sunrpc/clnt.h>
23 #include <linux/sunrpc/svcsock.h>
25 #define RPCDBG_FACILITY RPCDBG_MISC
27 struct proc_dir_entry *proc_net_rpc = NULL;
30 * Get RPC client stats
32 static int rpc_proc_show(struct seq_file *seq, void *v) {
33 const struct rpc_stat *statp = seq->private;
34 const struct rpc_program *prog = statp->program;
47 statp->rpcauthrefresh);
49 for (i = 0; i < prog->nrvers; i++) {
50 const struct rpc_version *vers = prog->version[i];
53 seq_printf(seq, "proc%u %u",
54 vers->number, vers->nrprocs);
55 for (j = 0; j < vers->nrprocs; j++)
56 seq_printf(seq, " %u",
57 vers->procs[j].p_count);
63 static int rpc_proc_open(struct inode *inode, struct file *file)
65 return single_open(file, rpc_proc_show, PDE(inode)->data);
68 static struct file_operations rpc_proc_fops = {
70 .open = rpc_proc_open,
73 .release = single_release,
77 * Get RPC server stats
79 void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) {
80 const struct svc_program *prog = statp->program;
81 const struct svc_procedure *proc;
82 const struct svc_version *vers;
92 "rpc %u %u %u %u %u\n",
94 statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
99 for (i = 0; i < prog->pg_nvers; i++) {
100 if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc))
102 seq_printf(seq, "proc%d %u", i, vers->vs_nproc);
103 for (j = 0; j < vers->vs_nproc; j++, proc++)
104 seq_printf(seq, " %u", proc->pc_count);
110 * Register/unregister RPC proc files
112 static inline struct proc_dir_entry *
113 do_register(const char *name, void *data, struct file_operations *fops)
115 struct proc_dir_entry *ent;
118 dprintk("RPC: registering /proc/net/rpc/%s\n", name);
120 ent = create_proc_entry(name, 0, proc_net_rpc);
122 ent->proc_fops = fops;
128 struct proc_dir_entry *
129 rpc_proc_register(struct rpc_stat *statp)
131 return do_register(statp->program->name, statp, &rpc_proc_fops);
135 rpc_proc_unregister(const char *name)
137 remove_proc_entry(name, proc_net_rpc);
140 struct proc_dir_entry *
141 svc_proc_register(struct svc_stat *statp, struct file_operations *fops)
143 return do_register(statp->program->pg_name, statp, fops);
147 svc_proc_unregister(const char *name)
149 remove_proc_entry(name, proc_net_rpc);
155 dprintk("RPC: registering /proc/net/rpc\n");
157 struct proc_dir_entry *ent;
158 ent = proc_mkdir("rpc", proc_net);
160 ent->owner = THIS_MODULE;
169 dprintk("RPC: unregistering /proc/net/rpc\n");
172 remove_proc_entry("net/rpc", NULL);