From 8a2933cfe7841cf8e3ed268b13210b71a80aabf0 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Thu, 16 Aug 2018 18:50:47 +0900
Subject: [PATCH] docs: tracing: Add stacktrace filter command

Add a description of stacktrace filter command.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---
 Documentation/trace/ftrace.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst
index 7ea16a0ceffc..f82434f2795e 100644
--- a/Documentation/trace/ftrace.rst
+++ b/Documentation/trace/ftrace.rst
@@ -2987,6 +2987,9 @@ The following commands are supported:
   command, it only prints out the contents of the ring buffer for the
   CPU that executed the function that triggered the dump.
 
+- stacktrace:
+  When the function is hit, a stack trace is recorded.
+
 trace_pipe
 ----------