From: Tom Zanussi <tom.zanussi@linux.intel.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: masami.hiramatsu.pt@hitachi.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] tracing/triggers: A couple minor variable name changes
Date: Tue, 07 Jan 2014 11:30:01 -0600 [thread overview]
Message-ID: <1389115801.3040.105.camel@empanada> (raw)
In-Reply-To: <20140106223124.0e5fd0b4@gandalf.local.home>
On Mon, 2014-01-06 at 22:31 -0500, Steven Rostedt wrote:
> On Mon, 06 Jan 2014 20:51:09 -0600
> Tom Zanussi <tom.zanussi@linux.intel.com> wrote:
>
> > I'll run the next version through my 'testsuite', which unfortunately is
> > still manual (one of the many things on my todo list is automate it)..
>
> I have some basic tests, attached is one. Which failed. Here's the
> patch that fixes it:
>
> -- Steve
>
> tracing: Fix counter for traceon/off event triggers
>
> The counters for the traceon and traceoff are only suppose to decrement
> when the trigger enables or disables tracing. It is not suppose to decrement
> every time the event is hit.
>
> Only decrement the counter if the trigger actually did something.
>
> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com>
> ---
> kernel/trace/trace_events_trigger.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
> index f6dd115..a53e0da 100644
> --- a/kernel/trace/trace_events_trigger.c
> +++ b/kernel/trace/trace_events_trigger.c
> @@ -742,13 +742,16 @@ traceon_trigger(struct event_trigger_data *data)
> static void
> traceon_count_trigger(struct event_trigger_data *data)
> {
> + if (tracing_is_on())
> + return;
> +
> if (!data->count)
> return;
>
> if (data->count != -1)
> (data->count)--;
>
> - traceon_trigger(data);
> + tracing_on();
> }
>
> static void
> @@ -763,13 +766,16 @@ traceoff_trigger(struct event_trigger_data *data)
> static void
> traceoff_count_trigger(struct event_trigger_data *data)
> {
> + if (!tracing_is_on())
> + return;
> +
> if (!data->count)
> return;
>
> if (data->count != -1)
> (data->count)--;
>
> - traceoff_trigger(data);
> + tracing_off();
> }
>
> static int
prev parent reply other threads:[~2014-01-07 17:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-06 19:44 [PATCH 0/2] tracing/triggers: A couple minor variable name changes Tom Zanussi
2014-01-06 19:44 ` [PATCH 1/2 v2] tracing/kprobes: Add trace event trigger invocations Tom Zanussi
2014-01-06 21:56 ` Masami Hiramatsu
2014-01-06 19:44 ` [PATCH 2/2] tracing: Remove double-underscore naming in syscall " Tom Zanussi
2014-01-06 21:13 ` [PATCH 0/2] tracing/triggers: A couple minor variable name changes Steven Rostedt
2014-01-07 0:47 ` Tom Zanussi
2014-01-07 1:50 ` Steven Rostedt
2014-01-07 2:51 ` Tom Zanussi
2014-01-07 3:27 ` Steven Rostedt
2014-01-07 17:29 ` Tom Zanussi
2014-01-07 17:56 ` Steven Rostedt
2014-01-07 3:31 ` Steven Rostedt
2014-01-07 17:30 ` Tom Zanussi [this message]
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