From 951e0d00205cd3bbf457d31515aa6a96c5f4d053 Mon Sep 17 00:00:00 2001 From: Zhaoyu Liu Date: Sat, 13 Nov 2021 21:37:34 +0800 Subject: [PATCH] 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 Acked-by: Steven Rostedt (VMware) Signed-off-by: Jonathan Corbet --- Documentation/trace/ftrace.rst | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst index 4e5b26f..b3166c4 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 > $tracefs/tracing_on exec "$@" -- 2.7.4