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| author | Zhaoyu Liu <zackary.liu.pro@gmail.com> | 2021-11-13 16:37:34 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2021-11-15 12:50:39 +0300 |
| commit | 951e0d00205cd3bbf457d31515aa6a96c5f4d053 (patch) | |
| tree | 5707e619f6ed15818d99e758b2f5a0d5fad0bea6 /Documentation/trace | |
| parent | 738943fab84852261136dbf6459e41ed661634a3 (diff) | |
| download | linux-951e0d00205cd3bbf457d31515aa6a96c5f4d053.tar.xz | |
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>
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/ftrace.rst | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst index 4e5b26f03d5b..b3166c4a7867 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 > $tracefs/tracing_on exec "$@" |