| * tracepoint-probe-sample2.c |
| * 2nd sample tracepoint probes. |
| #include <linux/module.h> |
| #include "tp-samples-trace.h" |
| * Here the caller only guarantees locking for struct file and struct inode. |
| * Locking must therefore be done in the probe to use the dentry. |
| static void probe_subsys_event(void *ignore, |
| struct inode *inode, struct file *file) |
| printk(KERN_INFO "Event is encountered with inode number %lu\n", |
| static int __init tp_sample_trace_init(void) |
| ret = register_trace_subsys_event(probe_subsys_event, NULL); |
| module_init(tp_sample_trace_init); |
| static void __exit tp_sample_trace_exit(void) |
| unregister_trace_subsys_event(probe_subsys_event, NULL); |
| tracepoint_synchronize_unregister(); |
| module_exit(tp_sample_trace_exit); |
| MODULE_AUTHOR("Mathieu Desnoyers"); |
| MODULE_DESCRIPTION("Tracepoint Probes Samples"); |