]>
git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - net/sunrpc/sysctl.c
2 * linux/net/sunrpc/sysctl.c
4 * Sysctl interface to sunrpc module.
6 * I would prefer to register the sunrpc table below sys/net, but that's
7 * impossible at the moment.
10 #include <linux/types.h>
11 #include <linux/linkage.h>
12 #include <linux/ctype.h>
14 #include <linux/sysctl.h>
15 #include <linux/module.h>
17 #include <asm/uaccess.h>
18 #include <linux/sunrpc/types.h>
19 #include <linux/sunrpc/sched.h>
20 #include <linux/sunrpc/stats.h>
21 #include <linux/sunrpc/svc_xprt.h>
24 * Declare the debug flags here
26 unsigned int rpc_debug
;
27 EXPORT_SYMBOL_GPL(rpc_debug
);
29 unsigned int nfs_debug
;
30 EXPORT_SYMBOL_GPL(nfs_debug
);
32 unsigned int nfsd_debug
;
33 EXPORT_SYMBOL_GPL(nfsd_debug
);
35 unsigned int nlm_debug
;
36 EXPORT_SYMBOL_GPL(nlm_debug
);
40 static struct ctl_table_header
*sunrpc_table_header
;
41 static ctl_table sunrpc_table
[];
44 rpc_register_sysctl(void)
46 if (!sunrpc_table_header
)
47 sunrpc_table_header
= register_sysctl_table(sunrpc_table
);
51 rpc_unregister_sysctl(void)
53 if (sunrpc_table_header
) {
54 unregister_sysctl_table(sunrpc_table_header
);
55 sunrpc_table_header
= NULL
;
59 static int proc_do_xprt(ctl_table
*table
, int write
, struct file
*file
,
60 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
)
65 if ((*ppos
&& !write
) || !*lenp
) {
69 len
= svc_print_xprts(tmpbuf
, sizeof(tmpbuf
));
70 return simple_read_from_buffer(buffer
, *lenp
, ppos
, tmpbuf
, len
);
74 proc_dodebug(ctl_table
*table
, int write
, struct file
*file
,
75 void __user
*buffer
, size_t *lenp
, loff_t
*ppos
)
77 char tmpbuf
[20], c
, *s
;
82 if ((*ppos
&& !write
) || !*lenp
) {
90 if (!access_ok(VERIFY_READ
, buffer
, left
))
93 while (left
&& __get_user(c
, p
) >= 0 && isspace(c
))
98 if (left
> sizeof(tmpbuf
) - 1)
100 if (copy_from_user(tmpbuf
, p
, left
))
104 for (s
= tmpbuf
, value
= 0; '0' <= *s
&& *s
<= '9'; s
++, left
--)
105 value
= 10 * value
+ (*s
- '0');
106 if (*s
&& !isspace(*s
))
108 while (left
&& isspace(*s
))
110 *(unsigned int *) table
->data
= value
;
111 /* Display the RPC tasks on writing to rpc_debug */
112 if (strcmp(table
->procname
, "rpc_debug") == 0)
115 if (!access_ok(VERIFY_WRITE
, buffer
, left
))
117 len
= sprintf(tmpbuf
, "%d", *(unsigned int *) table
->data
);
120 if (__copy_to_user(buffer
, tmpbuf
, len
))
122 if ((left
-= len
) > 0) {
123 if (put_user('\n', (char __user
*)buffer
+ len
))
136 static ctl_table debug_table
[] = {
138 .procname
= "rpc_debug",
140 .maxlen
= sizeof(int),
142 .proc_handler
= &proc_dodebug
145 .procname
= "nfs_debug",
147 .maxlen
= sizeof(int),
149 .proc_handler
= &proc_dodebug
152 .procname
= "nfsd_debug",
154 .maxlen
= sizeof(int),
156 .proc_handler
= &proc_dodebug
159 .procname
= "nlm_debug",
161 .maxlen
= sizeof(int),
163 .proc_handler
= &proc_dodebug
166 .procname
= "transports",
169 .proc_handler
= &proc_do_xprt
,
174 static ctl_table sunrpc_table
[] = {
176 .ctl_name
= CTL_SUNRPC
,
177 .procname
= "sunrpc",