Root/
1 | /* |
2 | * tracepoint-probe-sample2.c |
3 | * |
4 | * 2nd sample tracepoint probes. |
5 | */ |
6 | |
7 | #include <linux/module.h> |
8 | #include <linux/fs.h> |
9 | #include "tp-samples-trace.h" |
10 | |
11 | /* |
12 | * Here the caller only guarantees locking for struct file and struct inode. |
13 | * Locking must therefore be done in the probe to use the dentry. |
14 | */ |
15 | static void probe_subsys_event(void *ignore, |
16 | struct inode *inode, struct file *file) |
17 | { |
18 | printk(KERN_INFO "Event is encountered with inode number %lu\n", |
19 | inode->i_ino); |
20 | } |
21 | |
22 | static int __init tp_sample_trace_init(void) |
23 | { |
24 | int ret; |
25 | |
26 | ret = register_trace_subsys_event(probe_subsys_event, NULL); |
27 | WARN_ON(ret); |
28 | |
29 | return 0; |
30 | } |
31 | |
32 | module_init(tp_sample_trace_init); |
33 | |
34 | static void __exit tp_sample_trace_exit(void) |
35 | { |
36 | unregister_trace_subsys_event(probe_subsys_event, NULL); |
37 | tracepoint_synchronize_unregister(); |
38 | } |
39 | |
40 | module_exit(tp_sample_trace_exit); |
41 | |
42 | MODULE_LICENSE("GPL"); |
43 | MODULE_AUTHOR("Mathieu Desnoyers"); |
44 | MODULE_DESCRIPTION("Tracepoint Probes Samples"); |
45 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9