Messages in this thread Patch in this message | | | Date | Sat, 13 Nov 2021 21:37:34 +0800 | From | Zhaoyu Liu <> | Subject | [PATCH] docs: ftrace: fix the wrong path of tracefs |
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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> --- 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 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 > $tracefs/tracing_on exec "$@" -- 2.17.1
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