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> | |
16 | ||
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> | |
24 | ||
25 | #define RPCDBG_FACILITY RPCDBG_MISC | |
26 | ||
27 | struct proc_dir_entry *proc_net_rpc = NULL; | |
28 | ||
29 | /* | |
30 | * Get RPC client stats | |
31 | */ | |
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; | |
35 | int i, j; | |
36 | ||
37 | seq_printf(seq, | |
38 | "net %d %d %d %d\n", | |
39 | statp->netcnt, | |
40 | statp->netudpcnt, | |
41 | statp->nettcpcnt, | |
42 | statp->nettcpconn); | |
43 | seq_printf(seq, | |
44 | "rpc %d %d %d\n", | |
45 | statp->rpccnt, | |
46 | statp->rpcretrans, | |
47 | statp->rpcauthrefresh); | |
48 | ||
49 | for (i = 0; i < prog->nrvers; i++) { | |
50 | const struct rpc_version *vers = prog->version[i]; | |
51 | if (!vers) | |
52 | continue; | |
53 | seq_printf(seq, "proc%d %d", | |
54 | vers->number, vers->nrprocs); | |
55 | for (j = 0; j < vers->nrprocs; j++) | |
56 | seq_printf(seq, " %d", | |
57 | vers->procs[j].p_count); | |
58 | seq_putc(seq, '\n'); | |
59 | } | |
60 | return 0; | |
61 | } | |
62 | ||
63 | static int rpc_proc_open(struct inode *inode, struct file *file) | |
64 | { | |
65 | return single_open(file, rpc_proc_show, PDE(inode)->data); | |
66 | } | |
67 | ||
68 | static struct file_operations rpc_proc_fops = { | |
69 | .owner = THIS_MODULE, | |
70 | .open = rpc_proc_open, | |
71 | .read = seq_read, | |
72 | .llseek = seq_lseek, | |
73 | .release = single_release, | |
74 | }; | |
75 | ||
76 | /* | |
77 | * Get RPC server stats | |
78 | */ | |
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; | |
83 | int i, j; | |
84 | ||
85 | seq_printf(seq, | |
86 | "net %d %d %d %d\n", | |
87 | statp->netcnt, | |
88 | statp->netudpcnt, | |
89 | statp->nettcpcnt, | |
90 | statp->nettcpconn); | |
91 | seq_printf(seq, | |
92 | "rpc %d %d %d %d %d\n", | |
93 | statp->rpccnt, | |
94 | statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt, | |
95 | statp->rpcbadfmt, | |
96 | statp->rpcbadauth, | |
97 | statp->rpcbadclnt); | |
98 | ||
99 | for (i = 0; i < prog->pg_nvers; i++) { | |
100 | if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc)) | |
101 | continue; | |
102 | seq_printf(seq, "proc%d %d", i, vers->vs_nproc); | |
103 | for (j = 0; j < vers->vs_nproc; j++, proc++) | |
104 | seq_printf(seq, " %d", proc->pc_count); | |
105 | seq_putc(seq, '\n'); | |
106 | } | |
107 | } | |
108 | ||
109 | /* | |
110 | * Register/unregister RPC proc files | |
111 | */ | |
112 | static inline struct proc_dir_entry * | |
113 | do_register(const char *name, void *data, struct file_operations *fops) | |
114 | { | |
115 | struct proc_dir_entry *ent; | |
116 | ||
117 | rpc_proc_init(); | |
118 | dprintk("RPC: registering /proc/net/rpc/%s\n", name); | |
119 | ||
120 | ent = create_proc_entry(name, 0, proc_net_rpc); | |
121 | if (ent) { | |
122 | ent->proc_fops = fops; | |
123 | ent->data = data; | |
124 | } | |
125 | return ent; | |
126 | } | |
127 | ||
128 | struct proc_dir_entry * | |
129 | rpc_proc_register(struct rpc_stat *statp) | |
130 | { | |
131 | return do_register(statp->program->name, statp, &rpc_proc_fops); | |
132 | } | |
133 | ||
134 | void | |
135 | rpc_proc_unregister(const char *name) | |
136 | { | |
137 | remove_proc_entry(name, proc_net_rpc); | |
138 | } | |
139 | ||
140 | struct proc_dir_entry * | |
141 | svc_proc_register(struct svc_stat *statp, struct file_operations *fops) | |
142 | { | |
143 | return do_register(statp->program->pg_name, statp, fops); | |
144 | } | |
145 | ||
146 | void | |
147 | svc_proc_unregister(const char *name) | |
148 | { | |
149 | remove_proc_entry(name, proc_net_rpc); | |
150 | } | |
151 | ||
152 | void | |
153 | rpc_proc_init(void) | |
154 | { | |
155 | dprintk("RPC: registering /proc/net/rpc\n"); | |
156 | if (!proc_net_rpc) { | |
157 | struct proc_dir_entry *ent; | |
158 | ent = proc_mkdir("rpc", proc_net); | |
159 | if (ent) { | |
160 | ent->owner = THIS_MODULE; | |
161 | proc_net_rpc = ent; | |
162 | } | |
163 | } | |
164 | } | |
165 | ||
166 | void | |
167 | rpc_proc_exit(void) | |
168 | { | |
169 | dprintk("RPC: unregistering /proc/net/rpc\n"); | |
170 | if (proc_net_rpc) { | |
171 | proc_net_rpc = NULL; | |
172 | remove_proc_entry("net/rpc", NULL); | |
173 | } | |
174 | } | |
175 |