diff options
| author | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-04-20 11:46:03 -0400 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-04-20 22:06:48 -0400 |
| commit | 2290f2c589285d0031e3b7445afff8949f3fdbb6 (patch) | |
| tree | 98f8e9db7a57eadcaf517404e0f5712b0a204461 /kernel/trace/trace_functions.c | |
| parent | cab5037950821caa1301df0223de657c6ee202a8 (diff) | |
tracing/ftrace: Allow for the traceonoff probe be unique to instances
Have the traceon/off function probe triggers affect only the instance they
are set in. This required making the trace_on/off accessible for other files
in the tracing directory.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_functions.c')
| -rw-r--r-- | kernel/trace/trace_functions.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index 7775e1ca5bad..8c30ca733a5c 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -268,7 +268,8 @@ static struct tracer function_trace __tracer_data = #ifdef CONFIG_DYNAMIC_FTRACE static void update_traceon_count(struct ftrace_probe_ops *ops, - unsigned long ip, bool on, + unsigned long ip, + struct trace_array *tr, bool on, void *data) { struct ftrace_func_mapper *mapper = data; @@ -313,13 +314,13 @@ static void update_traceon_count(struct ftrace_probe_ops *ops, /* Make sure we see count before checking tracing state */ smp_rmb(); - if (on == !!tracing_is_on()) + if (on == !!tracer_tracing_is_on(tr)) return; if (on) - tracing_on(); + tracer_tracing_on(tr); else - tracing_off(); + tracer_tracing_off(tr); /* Make sure tracing state is visible before updating count */ smp_wmb(); @@ -332,7 +333,7 @@ ftrace_traceon_count(unsigned long ip, unsigned long parent_ip, struct trace_array *tr, struct ftrace_probe_ops *ops, void *data) { - update_traceon_count(ops, ip, 1, data); + update_traceon_count(ops, ip, tr, 1, data); } static void @@ -340,7 +341,7 @@ ftrace_traceoff_count(unsigned long ip, unsigned long parent_ip, struct trace_array *tr, struct ftrace_probe_ops *ops, void *data) { - update_traceon_count(ops, ip, 0, data); + update_traceon_count(ops, ip, tr, 0, data); } static void @@ -348,10 +349,10 @@ ftrace_traceon(unsigned long ip, unsigned long parent_ip, struct trace_array *tr, struct ftrace_probe_ops *ops, void *data) { - if (tracing_is_on()) + if (tracer_tracing_is_on(tr)) return; - tracing_on(); + tracer_tracing_on(tr); } static void @@ -359,10 +360,10 @@ ftrace_traceoff(unsigned long ip, unsigned long parent_ip, struct trace_array *tr, struct ftrace_probe_ops *ops, void *data) { - if (!tracing_is_on()) + if (!tracer_tracing_is_on(tr)) return; - tracing_off(); + tracer_tracing_off(tr); } /* |