Re: [PATCH 1/3] tracing/ftrace: don't insert TRACE_PRINT during selftests

[Ingo Molnar <mingo@elte.hu>]

* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> Impact: fix tracer selfstests false results
> 
> After setting a ftrace_printk somewhere in th kernel, I saw the
> Function tracer selftest failing.
> 
> When a selftest occurs, the ring buffer is lurked to see if
> some entries were inserted. But concurrent insertion such as
> ftrace_printk could occured at the same time and could give
> false positive or negative results.
> 
> This patch prevent prevent from TRACE_PRINT entries insertion
> during selftests.
> 
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
> ---
>  kernel/trace/trace.c |   13 ++++++++++++-
>  1 files changed, 12 insertions(+), 1 deletions(-)

applied to tip/tracing/ftrace, thanks.

I suspect you'll also fix the things Steve pointed out?

	Ingo