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| author | Jiri Olsa <jolsa@redhat.com> | 2012-02-15 15:51:49 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2012-02-21 11:08:24 -0500 |
| commit | ceec0b6fc7cd43b38a40c2d40223f9cd0616f0cd (patch) | |
| tree | 31e7deb76a5827883251dc578300bdc35ef62538 /kernel/trace/trace_kprobe.c | |
| parent | e248491ac283b516958ca9ab62c8e74b6718bca8 (diff) | |
| download | op-kernel-dev-ceec0b6fc7cd43b38a40c2d40223f9cd0616f0cd.zip op-kernel-dev-ceec0b6fc7cd43b38a40c2d40223f9cd0616f0cd.tar.gz | |
ftrace, perf: Add open/close tracepoint perf registration actions
Adding TRACE_REG_PERF_OPEN and TRACE_REG_PERF_CLOSE to differentiate
register/unregister from open/close actions.
The register/unregister actions are invoked for the first/last
tracepoint user when opening/closing the event.
The open/close actions are invoked for each tracepoint user when
opening/closing the event.
Link: http://lkml.kernel.org/r/1329317514-8131-3-git-send-email-jolsa@redhat.com
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 00d527c..5667f89 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1892,7 +1892,8 @@ static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri, #endif /* CONFIG_PERF_EVENTS */ static __kprobes -int kprobe_register(struct ftrace_event_call *event, enum trace_reg type) +int kprobe_register(struct ftrace_event_call *event, + enum trace_reg type, void *data) { struct trace_probe *tp = (struct trace_probe *)event->data; @@ -1909,6 +1910,9 @@ int kprobe_register(struct ftrace_event_call *event, enum trace_reg type) case TRACE_REG_PERF_UNREGISTER: disable_trace_probe(tp, TP_FLAG_PROFILE); return 0; + case TRACE_REG_PERF_OPEN: + case TRACE_REG_PERF_CLOSE: + return 0; #endif } return 0; |
