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authorWatanabe <shunsuke.watanabe@tel.com>2012-10-28 11:13:44 +0100
committerSteven Rostedt <rostedt@rostedt.homelinux.com>2012-11-02 21:47:04 -0400
commiteeacbb0f4023ebeb8f6933ea1ade1d272dabbc17 (patch)
treefcced5550ecd536b172303198fd47be5dbd447ff
parentf95a16e7bd4c6d6cff48166b642ed4eb56f71bde (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 73278468fadc..87b49177355c 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1527,11 +1527,7 @@ 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;
}
/*
@@ -1575,6 +1571,9 @@ 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);
}
/*