2 * tracepoint-probe-sample2.c
4 * 2nd sample tracepoint probes.
7 #include <linux/module.h>
9 #include "tp-samples-trace.h"
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.
15 static void probe_subsys_event(struct inode *inode, struct file *file)
17 printk(KERN_INFO "Event is encountered with inode number %lu\n",
21 int __init tp_sample_trace_init(void)
25 ret = register_trace_subsys_event(probe_subsys_event);
31 module_init(tp_sample_trace_init);
33 void __exit tp_sample_trace_exit(void)
35 unregister_trace_subsys_event(probe_subsys_event);
36 tracepoint_synchronize_unregister();
39 module_exit(tp_sample_trace_exit);
41 MODULE_LICENSE("GPL");
42 MODULE_AUTHOR("Mathieu Desnoyers");
43 MODULE_DESCRIPTION("Tracepoint Probes Samples");