diff options
Diffstat (limited to 'samples/tracepoints/tracepoint-probe-sample.c')
-rw-r--r-- | samples/tracepoints/tracepoint-probe-sample.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/samples/tracepoints/tracepoint-probe-sample.c b/samples/tracepoints/tracepoint-probe-sample.c index 9e60eb6ca2d8..744c0b9652a7 100644 --- a/samples/tracepoints/tracepoint-probe-sample.c +++ b/samples/tracepoints/tracepoint-probe-sample.c | |||
@@ -13,7 +13,8 @@ | |||
13 | * Here the caller only guarantees locking for struct file and struct inode. | 13 | * Here the caller only guarantees locking for struct file and struct inode. |
14 | * Locking must therefore be done in the probe to use the dentry. | 14 | * Locking must therefore be done in the probe to use the dentry. |
15 | */ | 15 | */ |
16 | static void probe_subsys_event(struct inode *inode, struct file *file) | 16 | static void probe_subsys_event(void *ignore, |
17 | struct inode *inode, struct file *file) | ||
17 | { | 18 | { |
18 | path_get(&file->f_path); | 19 | path_get(&file->f_path); |
19 | dget(file->f_path.dentry); | 20 | dget(file->f_path.dentry); |
@@ -23,7 +24,7 @@ static void probe_subsys_event(struct inode *inode, struct file *file) | |||
23 | path_put(&file->f_path); | 24 | path_put(&file->f_path); |
24 | } | 25 | } |
25 | 26 | ||
26 | static void probe_subsys_eventb(void) | 27 | static void probe_subsys_eventb(void *ignore) |
27 | { | 28 | { |
28 | printk(KERN_INFO "Event B is encountered\n"); | 29 | printk(KERN_INFO "Event B is encountered\n"); |
29 | } | 30 | } |
@@ -32,9 +33,9 @@ static int __init tp_sample_trace_init(void) | |||
32 | { | 33 | { |
33 | int ret; | 34 | int ret; |
34 | 35 | ||
35 | ret = register_trace_subsys_event(probe_subsys_event); | 36 | ret = register_trace_subsys_event(probe_subsys_event, NULL); |
36 | WARN_ON(ret); | 37 | WARN_ON(ret); |
37 | ret = register_trace_subsys_eventb(probe_subsys_eventb); | 38 | ret = register_trace_subsys_eventb(probe_subsys_eventb, NULL); |
38 | WARN_ON(ret); | 39 | WARN_ON(ret); |
39 | 40 | ||
40 | return 0; | 41 | return 0; |
@@ -44,8 +45,8 @@ module_init(tp_sample_trace_init); | |||
44 | 45 | ||
45 | static void __exit tp_sample_trace_exit(void) | 46 | static void __exit tp_sample_trace_exit(void) |
46 | { | 47 | { |
47 | unregister_trace_subsys_eventb(probe_subsys_eventb); | 48 | unregister_trace_subsys_eventb(probe_subsys_eventb, NULL); |
48 | unregister_trace_subsys_event(probe_subsys_event); | 49 | unregister_trace_subsys_event(probe_subsys_event, NULL); |
49 | tracepoint_synchronize_unregister(); | 50 | tracepoint_synchronize_unregister(); |
50 | } | 51 | } |
51 | 52 | ||