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Date: Tue, 10 May 2022 11:45:25 +0200 From: Daniel Bristot de Oliveira <bristot@...nel.org> To: Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org, linux-trace-devel@...r.kernel.org Cc: Daniel Bristot de Oliveira <bristot@...nel.org>, Juri Lelli <juri.lelli@...hat.com>, Ingo Molnar <mingo@...hat.com>, Clark Williams <williams@...hat.com> Subject: [PATCH 3/3] tracing/timerlat: Do not wakeup the thread if the trace stops at the IRQ There is no need to wakeup the timerlat/ thread if stop tracing is hit at the timerlat's IRQ handler. Return before waking up timerlat's thread. Cc: Steven Rostedt <rostedt@...dmis.org> Cc: Ingo Molnar <mingo@...hat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@...nel.org> --- kernel/trace/trace_osnoise.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 9b204ee3c6f5..035ec8b84e12 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -1595,6 +1595,8 @@ static enum hrtimer_restart timerlat_irq(struct hrtimer *timer) osnoise_stop_tracing(); notify_new_max_latency(diff); + + return HRTIMER_NORESTART; } } -- 2.32.0
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