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| author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2022-05-10 11:45:25 +0200 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-05-26 21:13:00 -0400 |
| commit | 9c556e5a4dd5cfc0939a0575577d0517118f98af (patch) | |
| tree | b21d4e2de236a728d90b894f7caa4eaecfa240da /kernel/trace | |
| parent | 4dd2aea24ed7613735664feadc9879d37f718c23 (diff) | |
| download | linux-stable-9c556e5a4dd5cfc0939a0575577d0517118f98af.tar.gz linux-stable-9c556e5a4dd5cfc0939a0575577d0517118f98af.tar.bz2 linux-stable-9c556e5a4dd5cfc0939a0575577d0517118f98af.zip | |
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.
Link: https://lkml.kernel.org/r/b392356c91b56aedd2b289513cc56a84cf87e60d.1652175637.git.bristot@kernel.org
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace_osnoise.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; } } |