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authorWatanabe <shunsuke.watanabe@tel.com>2012-10-28 11:13:44 +0100
committerSteven Rostedt <rostedt@rostedt.homelinux.com>2013-06-06 21:28:19 -0400
commitb6993074f67abf8edd3036eca3963c4c197d1471 (patch)
treed1d2155debcf4399f4d74fdbc5748e1771ff3b32
parent7cda7a79cd8fe97c734990ef6729db99b96c2c57 (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 c092e792f7e1..15d129107c61 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1538,11 +1538,7 @@ 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;
}
/*
@@ -1586,6 +1582,9 @@ 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);
}
/*