From: Zhaoyu Liu <zackary.liu.pro@gmail.com>
Date: Sat, 13 Nov 2021 13:37:34 +0000 (+0800)
Subject: docs: ftrace: fix the wrong path of tracefs
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=951e0d00205cd3bbf457d31515aa6a96c5f4d053;p=people%2Faperard%2Flinux.git

docs: ftrace: fix the wrong path of tracefs

Delete "tracing" due to it has been included in /proc/mounts.
Delete "echo nop > $tracefs/tracing/current_tracer", maybe
this command is redundant.

Signed-off-by: Zhaoyu Liu <zackary.liu.pro@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst
index 4e5b26f03d5b1..b3166c4a78678 100644
--- a/Documentation/trace/ftrace.rst
+++ b/Documentation/trace/ftrace.rst
@@ -2442,11 +2442,10 @@ Or this simple script!
   #!/bin/bash
 
   tracefs=`sed -ne 's/^tracefs \(.*\) tracefs.*/\1/p' /proc/mounts`
-  echo nop > $tracefs/tracing/current_tracer
-  echo 0 > $tracefs/tracing/tracing_on
-  echo $$ > $tracefs/tracing/set_ftrace_pid
-  echo function > $tracefs/tracing/current_tracer
-  echo 1 > $tracefs/tracing/tracing_on
+  echo 0 > $tracefs/tracing_on
+  echo $$ > $tracefs/set_ftrace_pid
+  echo function > $tracefs/current_tracer
+  echo 1 > $tracefs/tracing_on
   exec "$@"