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/sunrpc/clnt.h>
22 #include <linux/sunrpc/svcsock.h>
24 #define RPCDBG_FACILITY RPCDBG_MISC
26 struct proc_dir_entry *proc_net_rpc = NULL;
29 * Get RPC client stats
32 rpc_proc_read(char *buffer, char **start, off_t offset, int count,
35 struct rpc_stat *statp = (struct rpc_stat *) data;
36 struct rpc_program *prog = statp->program;
37 struct rpc_version *vers;
46 len += sprintf(buffer + len,
50 statp->rpcauthrefresh);
52 for (i = 0; i < prog->nrvers; i++) {
53 if (!(vers = prog->version[i]))
55 len += sprintf(buffer + len, "proc%d %d",
56 vers->number, vers->nrprocs);
57 for (j = 0; j < vers->nrprocs; j++)
58 len += sprintf(buffer + len, " %d",
59 vers->procs[j].p_count);
68 *start = buffer + offset;
69 if ((len -= offset) > count)
76 * Get RPC server stats
79 svc_proc_read(char *buffer, char **start, off_t offset, int count,
82 struct svc_stat *statp = (struct svc_stat *) data;
83 struct svc_program *prog = statp->program;
84 struct svc_procedure *proc;
85 struct svc_version *vers;
94 len += sprintf(buffer + len,
95 "rpc %d %d %d %d %d\n",
97 statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
102 for (i = 0; i < prog->pg_nvers; i++) {
103 if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc))
105 len += sprintf(buffer + len, "proc%d %d", i, vers->vs_nproc);
106 for (j = 0; j < vers->vs_nproc; j++, proc++)
107 len += sprintf(buffer + len, " %d", proc->pc_count);
108 buffer[len++] = '\n';
116 *start = buffer + offset;
117 if ((len -= offset) > count)
124 * Register/unregister RPC proc files
126 static inline struct proc_dir_entry *
127 do_register(const char *name, void *data, int issvc)
130 dprintk("RPC: registering /proc/net/rpc/%s\n", name);
131 return create_proc_read_entry(name, 0, proc_net_rpc,
132 issvc? svc_proc_read : rpc_proc_read,
136 struct proc_dir_entry *
137 rpc_proc_register(struct rpc_stat *statp)
139 return do_register(statp->program->name, statp, 0);
143 rpc_proc_unregister(const char *name)
145 remove_proc_entry(name, proc_net_rpc);
148 struct proc_dir_entry *
149 svc_proc_register(struct svc_stat *statp)
151 return do_register(statp->program->pg_name, statp, 1);
155 svc_proc_unregister(const char *name)
157 remove_proc_entry(name, proc_net_rpc);
163 dprintk("RPC: registering /proc/net/rpc\n");
165 struct proc_dir_entry *ent;
166 ent = proc_mkdir("net/rpc", 0);
168 ent->owner = THIS_MODULE;
177 dprintk("RPC: unregistering /proc/net/rpc\n");
180 remove_proc_entry("net/rpc", 0);