linux-kernel - Re: [PATCH] Documentation: Fix the wrong command `echo -1 > set_ftrace

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Date:	Mon, 9 Feb 2015 11:02:17 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Jonathan Corbet <corbet@....net>
Cc:	Wang Long <long.wanglong@...wei.com>, <mingo@...hat.com>,
	<linux-doc@...r.kernel.or>, <linux-kernel@...r.kernel.org>,
	<peifeiyue@...wei.com>
Subject: Re: [PATCH] Documentation: Fix the wrong command `echo -1 > 
 set_ftrace_pid` for cleaning the filter.

On Mon, 9 Feb 2015 10:57:29 -0500
Jonathan Corbet <corbet@....net> wrote:

> On Thu, 5 Feb 2015 05:16:14 +0000
> Wang Long <long.wanglong@...wei.com> wrote:
> 
> > The command `echo > set_ftrace_pid` should be used to clean the filter quietly.
> > because the command `echo -1 >  set_ftrace_pid` will output the following:
> > "bash: echo: write error: Invalid argument".
> > 
> > so update the file Documentation/trace/ftrace.txt.
> 
> So this is in my pile for the docs tree, but I was hoping to see an ack
> from Steve first...?

Yeah, I meant to reply but got distracted ;-)

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve
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