2 * linux/net/sunrpc/sysctl.c
4 * Sysctl interface to sunrpc module. This is for debugging only now.
6 * I would prefer to register the sunrpc table below sys/net, but that's
7 * impossible at the moment.
10 #include <linux/config.h>
11 #include <linux/version.h>
12 #include <linux/types.h>
13 #include <linux/linkage.h>
14 #include <linux/ctype.h>
16 #include <linux/sysctl.h>
17 #define __NO_VERSION__
18 #include <linux/module.h>
20 #include <asm/uaccess.h>
21 #include <linux/sunrpc/types.h>
22 #include <linux/sunrpc/sched.h>
23 #include <linux/sunrpc/stats.h>
26 * Declare the debug flags here
28 unsigned int rpc_debug
;
29 unsigned int nfs_debug
;
30 unsigned int nfsd_debug
;
31 unsigned int nlm_debug
;
35 static struct ctl_table_header
*sunrpc_table_header
;
36 static ctl_table sunrpc_table
[];
39 rpc_register_sysctl(void)
41 if (!sunrpc_table_header
) {
42 sunrpc_table_header
= register_sysctl_table(sunrpc_table
, 1);
44 if (sunrpc_table
[0].de
)
45 sunrpc_table
[0].de
->owner
= THIS_MODULE
;
52 rpc_unregister_sysctl(void)
54 if (sunrpc_table_header
) {
55 unregister_sysctl_table(sunrpc_table_header
);
56 sunrpc_table_header
= NULL
;
61 proc_dodebug(ctl_table
*table
, int write
, struct file
*file
,
62 void *buffer
, size_t *lenp
)
64 char tmpbuf
[20], *p
, c
;
68 if ((file
->f_pos
&& !write
) || !*lenp
) {
76 if (!access_ok(VERIFY_READ
, buffer
, left
))
79 while (left
&& __get_user(c
, p
) >= 0 && isspace(c
))
84 if (left
> sizeof(tmpbuf
) - 1)
86 copy_from_user(tmpbuf
, p
, left
);
89 for (p
= tmpbuf
, value
= 0; '0' <= *p
&& *p
<= '9'; p
++, left
--)
90 value
= 10 * value
+ (*p
- '0');
91 if (*p
&& !isspace(*p
))
93 while (left
&& isspace(*p
))
95 *(unsigned int *) table
->data
= value
;
96 /* Display the RPC tasks on writing to rpc_debug */
97 if (table
->ctl_name
== CTL_RPCDEBUG
) {
101 if (!access_ok(VERIFY_WRITE
, buffer
, left
))
103 len
= sprintf(tmpbuf
, "%d", *(unsigned int *) table
->data
);
106 copy_to_user(buffer
, tmpbuf
, len
);
107 if ((left
-= len
) > 0) {
108 put_user('\n', (char *)buffer
+ len
);
115 file
->f_pos
+= *lenp
;
119 #define DIRENTRY(nam1, nam2, child) \
120 {CTL_##nam1, #nam2, NULL, 0, 0555, child }
121 #define DBGENTRY(nam1, nam2) \
122 {CTL_##nam1##DEBUG, #nam2 "_debug", &nam2##_debug, sizeof(int),\
123 0644, NULL, &proc_dodebug}
125 static ctl_table debug_table
[] = {
128 DBGENTRY(NFSD
, nfsd
),
133 static ctl_table sunrpc_table
[] = {
134 DIRENTRY(SUNRPC
, sunrpc
, debug_table
),