linux-kernel - Re: [PATCH 1/1] ftrace: fix function graph tracer

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Date:	Fri, 17 Feb 2012 12:22:16 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Rajesh Bhagat <rajesh.lnx@...il.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] ftrace: fix function graph tracer

On Fri, 2012-02-17 at 21:39 +0530, Rajesh Bhagat wrote:

> ---
>  kernel/trace/ftrace.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
> index 683d559..dc2de98 100644
> --- a/kernel/trace/ftrace.c
> +++ b/kernel/trace/ftrace.c
> @@ -219,7 +219,8 @@ static void update_ftrace_function(void)
>  #else
>     __ftrace_trace_function = func;
>  #endif
> -   ftrace_trace_function = ftrace_test_stop_func;
> +   ftrace_trace_function =
> +       (func == ftrace_stub) ? func : ftrace_test_stop_func;
>  #endif
>  }

Nice catch! This should also go into stable. When I get back from the
conference I'll start getting it upstream.

Thanks,

-- Steve


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