[PATCH v3 3/8] Documentation: tracing: Add tracing_on option to boot-time tracer

Add tracing_on option description to the boot-time tracer.

Signed-off-by: Masami Hiramatsu mhiramat@kernel.org --- Documentation/trace/boottime-trace.rst | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/Documentation/trace/boottime-trace.rst b/Documentation/trace/boottime-trace.rst index dcb390075ca1..1341b449acaa 100644 --- a/Documentation/trace/boottime-trace.rst +++ b/Documentation/trace/boottime-trace.rst @@ -61,6 +61,10 @@ These options can be used for each instance including global ftrace node. ftrace.[instance.INSTANCE.]options = OPT1[, OPT2[...]] Enable given ftrace options.

+ftrace.[instance.INSTANCE.]tracing_on = 0|1 + Enable/Disable tracing on this instance when boot. + (you can enable it by the "traceon" event trigger action) + ftrace.[instance.INSTANCE.]trace_clock = CLOCK Set given CLOCK to ftrace's trace_clock.