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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 /include/linux/ftrace_event.h | |
| parent | e248491ac283b516958ca9ab62c8e74b6718bca8 (diff) | |
| download | lwn-ceec0b6fc7cd43b38a40c2d40223f9cd0616f0cd.tar.gz lwn-ceec0b6fc7cd43b38a40c2d40223f9cd0616f0cd.zip | |
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 'include/linux/ftrace_event.h')
| -rw-r--r-- | include/linux/ftrace_event.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index c3da42dd22ba..195e3606ddd7 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -146,6 +146,8 @@ enum trace_reg { TRACE_REG_UNREGISTER, TRACE_REG_PERF_REGISTER, TRACE_REG_PERF_UNREGISTER, + TRACE_REG_PERF_OPEN, + TRACE_REG_PERF_CLOSE, }; struct ftrace_event_call; @@ -157,7 +159,7 @@ struct ftrace_event_class { void *perf_probe; #endif int (*reg)(struct ftrace_event_call *event, - enum trace_reg type); + enum trace_reg type, void *data); int (*define_fields)(struct ftrace_event_call *); struct list_head *(*get_fields)(struct ftrace_event_call *); struct list_head fields; @@ -165,7 +167,7 @@ struct ftrace_event_class { }; extern int ftrace_event_reg(struct ftrace_event_call *event, - enum trace_reg type); + enum trace_reg type, void *data); enum { TRACE_EVENT_FL_ENABLED_BIT, |