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    Subject[for-next][PATCH 14/21] tracing: Have the document reflect that the trace file keeps tracing enabled
    From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

    Now that reading the trace file does not temporarly stop tracing while it is
    open, update the document to reflect this fact.

    Link: http://lkml.kernel.org/r/20200317213417.209675068@goodmis.org

    Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
    ---
    Documentation/trace/ftrace.rst | 13 +++++++------
    1 file changed, 7 insertions(+), 6 deletions(-)

    diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst
    index c33950a35d65..00621731bf27 100644
    --- a/Documentation/trace/ftrace.rst
    +++ b/Documentation/trace/ftrace.rst
    @@ -125,10 +125,13 @@ of ftrace. Here is a list of some of the key files:
    trace:

    This file holds the output of the trace in a human
    - readable format (described below). Note, tracing is temporarily
    - disabled when the file is open for reading. Once all readers
    - are closed, tracing is re-enabled. Opening this file for
    + readable format (described below). Opening this file for
    writing with the O_TRUNC flag clears the ring buffer content.
    + Note, this file is not a consumer. If tracing is off
    + (no tracer running, or tracing_on is zero), it will produce
    + the same output each time it is read. When tracing is on,
    + it may produce inconsistent results as it tries to read
    + the entire buffer without consuming it.

    trace_pipe:

    @@ -142,9 +145,7 @@ of ftrace. Here is a list of some of the key files:
    will not be read again with a sequential read. The
    "trace" file is static, and if the tracer is not
    adding more data, it will display the same
    - information every time it is read. Unlike the
    - "trace" file, opening this file for reading will not
    - temporarily disable tracing.
    + information every time it is read.

    trace_options:

    --
    2.25.1

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