diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sunrpc/sysctl.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'net/sunrpc/sysctl.c')
-rw-r--r-- | net/sunrpc/sysctl.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c new file mode 100644 index 000000000000..1b9616a12e24 --- /dev/null +++ b/net/sunrpc/sysctl.c | |||
@@ -0,0 +1,193 @@ | |||
1 | /* | ||
2 | * linux/net/sunrpc/sysctl.c | ||
3 | * | ||
4 | * Sysctl interface to sunrpc module. | ||
5 | * | ||
6 | * I would prefer to register the sunrpc table below sys/net, but that's | ||
7 | * impossible at the moment. | ||
8 | */ | ||
9 | |||
10 | #include <linux/config.h> | ||
11 | #include <linux/types.h> | ||
12 | #include <linux/linkage.h> | ||
13 | #include <linux/ctype.h> | ||
14 | #include <linux/fs.h> | ||
15 | #include <linux/sysctl.h> | ||
16 | #include <linux/module.h> | ||
17 | |||
18 | #include <asm/uaccess.h> | ||
19 | #include <linux/sunrpc/types.h> | ||
20 | #include <linux/sunrpc/sched.h> | ||
21 | #include <linux/sunrpc/stats.h> | ||
22 | #include <linux/sunrpc/xprt.h> | ||
23 | |||
24 | /* | ||
25 | * Declare the debug flags here | ||
26 | */ | ||
27 | unsigned int rpc_debug; | ||
28 | unsigned int nfs_debug; | ||
29 | unsigned int nfsd_debug; | ||
30 | unsigned int nlm_debug; | ||
31 | |||
32 | #ifdef RPC_DEBUG | ||
33 | |||
34 | static struct ctl_table_header *sunrpc_table_header; | ||
35 | static ctl_table sunrpc_table[]; | ||
36 | |||
37 | void | ||
38 | rpc_register_sysctl(void) | ||
39 | { | ||
40 | if (!sunrpc_table_header) { | ||
41 | sunrpc_table_header = register_sysctl_table(sunrpc_table, 1); | ||
42 | #ifdef CONFIG_PROC_FS | ||
43 | if (sunrpc_table[0].de) | ||
44 | sunrpc_table[0].de->owner = THIS_MODULE; | ||
45 | #endif | ||
46 | } | ||
47 | |||
48 | } | ||
49 | |||
50 | void | ||
51 | rpc_unregister_sysctl(void) | ||
52 | { | ||
53 | if (sunrpc_table_header) { | ||
54 | unregister_sysctl_table(sunrpc_table_header); | ||
55 | sunrpc_table_header = NULL; | ||
56 | } | ||
57 | } | ||
58 | |||
59 | static int | ||
60 | proc_dodebug(ctl_table *table, int write, struct file *file, | ||
61 | void __user *buffer, size_t *lenp, loff_t *ppos) | ||
62 | { | ||
63 | char tmpbuf[20], c, *s; | ||
64 | char __user *p; | ||
65 | unsigned int value; | ||
66 | size_t left, len; | ||
67 | |||
68 | if ((*ppos && !write) || !*lenp) { | ||
69 | *lenp = 0; | ||
70 | return 0; | ||
71 | } | ||
72 | |||
73 | left = *lenp; | ||
74 | |||
75 | if (write) { | ||
76 | if (!access_ok(VERIFY_READ, buffer, left)) | ||
77 | return -EFAULT; | ||
78 | p = buffer; | ||
79 | while (left && __get_user(c, p) >= 0 && isspace(c)) | ||
80 | left--, p++; | ||
81 | if (!left) | ||
82 | goto done; | ||
83 | |||
84 | if (left > sizeof(tmpbuf) - 1) | ||
85 | return -EINVAL; | ||
86 | if (copy_from_user(tmpbuf, p, left)) | ||
87 | return -EFAULT; | ||
88 | tmpbuf[left] = '\0'; | ||
89 | |||
90 | for (s = tmpbuf, value = 0; '0' <= *s && *s <= '9'; s++, left--) | ||
91 | value = 10 * value + (*s - '0'); | ||
92 | if (*s && !isspace(*s)) | ||
93 | return -EINVAL; | ||
94 | while (left && isspace(*s)) | ||
95 | left--, s++; | ||
96 | *(unsigned int *) table->data = value; | ||
97 | /* Display the RPC tasks on writing to rpc_debug */ | ||
98 | if (table->ctl_name == CTL_RPCDEBUG) { | ||
99 | rpc_show_tasks(); | ||
100 | } | ||
101 | } else { | ||
102 | if (!access_ok(VERIFY_WRITE, buffer, left)) | ||
103 | return -EFAULT; | ||
104 | len = sprintf(tmpbuf, "%d", *(unsigned int *) table->data); | ||
105 | if (len > left) | ||
106 | len = left; | ||
107 | if (__copy_to_user(buffer, tmpbuf, len)) | ||
108 | return -EFAULT; | ||
109 | if ((left -= len) > 0) { | ||
110 | if (put_user('\n', (char __user *)buffer + len)) | ||
111 | return -EFAULT; | ||
112 | left--; | ||
113 | } | ||
114 | } | ||
115 | |||
116 | done: | ||
117 | *lenp -= left; | ||
118 | *ppos += *lenp; | ||
119 | return 0; | ||
120 | } | ||
121 | |||
122 | static unsigned int min_slot_table_size = RPC_MIN_SLOT_TABLE; | ||
123 | static unsigned int max_slot_table_size = RPC_MAX_SLOT_TABLE; | ||
124 | |||
125 | static ctl_table debug_table[] = { | ||
126 | { | ||
127 | .ctl_name = CTL_RPCDEBUG, | ||
128 | .procname = "rpc_debug", | ||
129 | .data = &rpc_debug, | ||
130 | .maxlen = sizeof(int), | ||
131 | .mode = 0644, | ||
132 | .proc_handler = &proc_dodebug | ||
133 | }, | ||
134 | { | ||
135 | .ctl_name = CTL_NFSDEBUG, | ||
136 | .procname = "nfs_debug", | ||
137 | .data = &nfs_debug, | ||
138 | .maxlen = sizeof(int), | ||
139 | .mode = 0644, | ||
140 | .proc_handler = &proc_dodebug | ||
141 | }, | ||
142 | { | ||
143 | .ctl_name = CTL_NFSDDEBUG, | ||
144 | .procname = "nfsd_debug", | ||
145 | .data = &nfsd_debug, | ||
146 | .maxlen = sizeof(int), | ||
147 | .mode = 0644, | ||
148 | .proc_handler = &proc_dodebug | ||
149 | }, | ||
150 | { | ||
151 | .ctl_name = CTL_NLMDEBUG, | ||
152 | .procname = "nlm_debug", | ||
153 | .data = &nlm_debug, | ||
154 | .maxlen = sizeof(int), | ||
155 | .mode = 0644, | ||
156 | .proc_handler = &proc_dodebug | ||
157 | }, | ||
158 | { | ||
159 | .ctl_name = CTL_SLOTTABLE_UDP, | ||
160 | .procname = "udp_slot_table_entries", | ||
161 | .data = &xprt_udp_slot_table_entries, | ||
162 | .maxlen = sizeof(unsigned int), | ||
163 | .mode = 0644, | ||
164 | .proc_handler = &proc_dointvec_minmax, | ||
165 | .strategy = &sysctl_intvec, | ||
166 | .extra1 = &min_slot_table_size, | ||
167 | .extra2 = &max_slot_table_size | ||
168 | }, | ||
169 | { | ||
170 | .ctl_name = CTL_SLOTTABLE_TCP, | ||
171 | .procname = "tcp_slot_table_entries", | ||
172 | .data = &xprt_tcp_slot_table_entries, | ||
173 | .maxlen = sizeof(unsigned int), | ||
174 | .mode = 0644, | ||
175 | .proc_handler = &proc_dointvec_minmax, | ||
176 | .strategy = &sysctl_intvec, | ||
177 | .extra1 = &min_slot_table_size, | ||
178 | .extra2 = &max_slot_table_size | ||
179 | }, | ||
180 | { .ctl_name = 0 } | ||
181 | }; | ||
182 | |||
183 | static ctl_table sunrpc_table[] = { | ||
184 | { | ||
185 | .ctl_name = CTL_SUNRPC, | ||
186 | .procname = "sunrpc", | ||
187 | .mode = 0555, | ||
188 | .child = debug_table | ||
189 | }, | ||
190 | { .ctl_name = 0 } | ||
191 | }; | ||
192 | |||
193 | #endif | ||