diff options
Diffstat (limited to 'samples/tracepoints/tracepoint-probe-sample.c')
| -rw-r--r-- | samples/tracepoints/tracepoint-probe-sample.c | 57 | 
1 files changed, 0 insertions, 57 deletions
diff --git a/samples/tracepoints/tracepoint-probe-sample.c b/samples/tracepoints/tracepoint-probe-sample.c deleted file mode 100644 index 744c0b9652a..00000000000 --- a/samples/tracepoints/tracepoint-probe-sample.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * tracepoint-probe-sample.c - * - * sample tracepoint probes. - */ - -#include <linux/module.h> -#include <linux/file.h> -#include <linux/dcache.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) -{ -	path_get(&file->f_path); -	dget(file->f_path.dentry); -	printk(KERN_INFO "Event is encountered with filename %s\n", -		file->f_path.dentry->d_name.name); -	dput(file->f_path.dentry); -	path_put(&file->f_path); -} - -static void probe_subsys_eventb(void *ignore) -{ -	printk(KERN_INFO "Event B is encountered\n"); -} - -static int __init tp_sample_trace_init(void) -{ -	int ret; - -	ret = register_trace_subsys_event(probe_subsys_event, NULL); -	WARN_ON(ret); -	ret = register_trace_subsys_eventb(probe_subsys_eventb, NULL); -	WARN_ON(ret); - -	return 0; -} - -module_init(tp_sample_trace_init); - -static void __exit tp_sample_trace_exit(void) -{ -	unregister_trace_subsys_eventb(probe_subsys_eventb, NULL); -	unregister_trace_subsys_event(probe_subsys_event, NULL); -	tracepoint_synchronize_unregister(); -} - -module_exit(tp_sample_trace_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Mathieu Desnoyers"); -MODULE_DESCRIPTION("Tracepoint Probes Samples");  |