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>
23 #include <linux/init.h>
25 #define RPCDBG_FACILITY RPCDBG_MISC
27 static struct proc_dir_entry *proc_net_rpc = NULL;
30 * Get RPC client stats
33 rpc_proc_read(char *buffer, char **start, off_t offset, int count,
36 struct rpc_stat *statp = (struct rpc_stat *) data;
37 struct rpc_program *prog = statp->program;
38 struct rpc_version *vers;
47 len += sprintf(buffer + len,
51 statp->rpcauthrefresh);
53 for (i = 0; i < prog->nrvers; i++) {
54 if (!(vers = prog->version[i]))
56 len += sprintf(buffer + len, "proc%d %d",
57 vers->number, vers->nrprocs);
58 for (j = 0; j < vers->nrprocs; j++)
59 len += sprintf(buffer + len, " %d",
60 vers->procs[j].p_count);
69 *start = buffer + offset;
70 if ((len -= offset) > count)
77 * Get RPC server stats
80 svc_proc_read(char *buffer, char **start, off_t offset, int count,
83 struct svc_stat *statp = (struct svc_stat *) data;
84 struct svc_program *prog = statp->program;
85 struct svc_procedure *proc;
86 struct svc_version *vers;
95 len += sprintf(buffer + len,
96 "rpc %d %d %d %d %d\n",
98 statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
103 for (i = 0; i < prog->pg_nvers; i++) {
104 if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc))
106 len += sprintf(buffer + len, "proc%d %d", i, vers->vs_nproc);
107 for (j = 0; j < vers->vs_nproc; j++, proc++)
108 len += sprintf(buffer + len, " %d", proc->pc_count);
109 buffer[len++] = '\n';
117 *start = buffer + offset;
118 if ((len -= offset) > count)
125 * Register/unregister RPC proc files
127 static inline struct proc_dir_entry *
128 do_register(const char *name, void *data, int issvc)
131 dprintk("RPC: registering /proc/net/rpc/%s\n", name);
132 return create_proc_read_entry(name, 0, proc_net_rpc,
133 issvc? svc_proc_read : rpc_proc_read,
137 struct proc_dir_entry *
138 rpc_proc_register(struct rpc_stat *statp)
140 return do_register(statp->program->name, statp, 0);
144 rpc_proc_unregister(const char *name)
146 remove_proc_entry(name, proc_net_rpc);
149 struct proc_dir_entry *
150 svc_proc_register(struct svc_stat *statp)
152 return do_register(statp->program->pg_name, statp, 1);
156 svc_proc_unregister(const char *name)
158 remove_proc_entry(name, proc_net_rpc);
164 dprintk("RPC: registering /proc/net/rpc\n");
166 struct proc_dir_entry *ent;
167 ent = proc_mkdir("net/rpc", 0);
169 ent->owner = THIS_MODULE;
178 dprintk("RPC: unregistering /proc/net/rpc\n");
181 remove_proc_entry("net/rpc", 0);
190 rpc_register_sysctl();
200 rpc_unregister_sysctl();
204 MODULE_LICENSE("GPL");
205 module_init(init_sunrpc);
206 module_exit(cleanup_sunrpc);