diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-02-04 16:38:10 +0100 |
|---|---|---|
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-02-13 00:36:33 +0100 |
| commit | d3a0b1907290fe7c364432f8df2cae1e81fd2823 (patch) | |
| tree | ef268d765803d16a1748514a0a9bed25c2681ae3 | |
| parent | 5e6e6ada262f704a657d7edc986271ff46506341 (diff) | |
| download | rt-linux-d3a0b1907290fe7c364432f8df2cae1e81fd2823.tar.gz | |
kernel/perf: mark perf_cpu_context's timer as irqsafe
Otherwise we get a WARN_ON() backtrace and some events are reported as
"not counted".
Cc: stable-rt@vger.kernel.org
Reported-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
| -rw-r--r-- | kernel/events/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 6430e415b7e64..fa32b9b7721d5 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -802,6 +802,7 @@ static void __perf_mux_hrtimer_init(struct perf_cpu_context *cpuctx, int cpu) raw_spin_lock_init(&cpuctx->hrtimer_lock); hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED); timer->function = perf_mux_hrtimer_handler; + timer->irqsafe = 1; } static int perf_mux_hrtimer_restart(struct perf_cpu_context *cpuctx) |