From 64b710a93390137b1a8a15bb39ac41d3a3820bed Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 4 Feb 2016 16:38:10 +0100 Subject: [PATCH 294/365] 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 Signed-off-by: Sebastian Andrzej Siewior --- kernel/events/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/events/core.c b/kernel/events/core.c index 6796d1faf3ae..94cd426d6826 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -1072,6 +1072,7 @@ 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) -- 2.28.0