aboutsummaryrefslogtreecommitdiffstats
path: root/samples/tracepoints/tracepoint-probe-sample2.c
diff options
context:
space:
mode:
Diffstat (limited to 'samples/tracepoints/tracepoint-probe-sample2.c')
-rw-r--r--samples/tracepoints/tracepoint-probe-sample2.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/samples/tracepoints/tracepoint-probe-sample2.c b/samples/tracepoints/tracepoint-probe-sample2.c
deleted file mode 100644
index 9fcf990e5d4b..000000000000
--- a/samples/tracepoints/tracepoint-probe-sample2.c
+++ /dev/null
@@ -1,44 +0,0 @@
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 */
15static 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
22static 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
32module_init(tp_sample_trace_init);
33
34static void __exit tp_sample_trace_exit(void)
35{
36 unregister_trace_subsys_event(probe_subsys_event, NULL);
37 tracepoint_synchronize_unregister();
38}
39
40module_exit(tp_sample_trace_exit);
41
42MODULE_LICENSE("GPL");
43MODULE_AUTHOR("Mathieu Desnoyers");
44MODULE_DESCRIPTION("Tracepoint Probes Samples");