[PATCH v3.1 3/8] Documentation: tracing: Add tracing_on option to boot-time tracer
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: 2020-09-11 00:47:25
Also in:
linux-kselftest, lkml
Subsystem:
documentation, the rest, tracing · Maintainers:
Jonathan Corbet, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Add tracing_on option description to the boot-time tracer. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- Changes in v3.1: - Fix "on boot" to "on starting boot-time tracing". --- 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..9bc8aceb8c0a 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 starting boot-time tracing. + (you can enable it by the "traceon" event trigger action) + ftrace.[instance.INSTANCE.]trace_clock = CLOCK Set given CLOCK to ftrace's trace_clock.