diff options
| author |   Carsten Emde <Carsten.Emde@osadl.org> | 2009-09-13 01:43:07 +0200 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2009-09-12 21:45:17 -0400 |
| commit | b5130b1e7d3717d03ab1916b198bf0d49fa0a619 (patch) | |
| tree | 67ee3282f6b6aa2e37864b938f67fd7e02b04394 /kernel/trace/trace.h | |
| parent | tracing: remove unused local variables in tracer probe functions (diff) | |
| download | linux-dev-b5130b1e7d3717d03ab1916b198bf0d49fa0a619.tar.xz linux-dev-b5130b1e7d3717d03ab1916b198bf0d49fa0a619.zip | |
tracing: do not update tracing_max_latency when tracer is stopped
The state of the function pair tracing_stop()/tracing_start() is
correctly considered when tracer data are updated. However, the global
and externally accessible variable tracing_max_latency is always updated
- even when tracing is stopped.
The update should only occur, if tracing was not stopped.
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 28247cecd955..4ad4e1ddcb9b 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -461,6 +461,7 @@ void tracing_stop_sched_switch_record(void); void tracing_start_sched_switch_record(void); int register_tracer(struct tracer *type); void unregister_tracer(struct tracer *type); +int is_tracing_stopped(void); extern unsigned long nsecs_to_usecs(unsigned long nsecs); |