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authorWatanabe <shunsuke.watanabe@tel.com>2012-10-28 11:13:44 +0100
committerSteven Rostedt <rostedt@rostedt.homelinux.com>2013-05-20 15:05:17 -0400
commit4e62f30cc67888319bac1d5167654fa3f5cb92b9 (patch)
treece6e31af69d9417862025346c58ad10914393584
parent025b08dd9dfa9812c2e9ace5d9c756568f56933e (diff)
hrtimer: Raise softirq if hrtimer irq stalled
When the hrtimer stall detection hits the softirq is not raised. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable-rt@vger.kernel.org
-rw-r--r--kernel/hrtimer.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 8d0e333737bc..b40619e7cacf 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1532,11 +1532,7 @@ retry:
if (expires_next.tv64 == KTIME_MAX ||
!tick_program_event(expires_next, 0)) {
cpu_base->hang_detected = 0;
-
- if (raise)
- raise_softirq_irqoff(HRTIMER_SOFTIRQ);
-
- return;
+ goto out;
}
/*
@@ -1580,6 +1576,9 @@ retry:
tick_program_event(expires_next, 1);
printk_once(KERN_WARNING "hrtimer: interrupt took %llu ns\n",
ktime_to_ns(delta));
+out:
+ if (raise)
+ raise_softirq_irqoff(HRTIMER_SOFTIRQ);
}
/*