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authorWatanabe <shunsuke.watanabe@tel.com>2012-10-28 11:13:44 +0100
committerSteven Rostedt <rostedt@goodmis.org>2013-04-30 23:02:06 -0400
commitc5c93b2dc1983a6ef02d337e470b43c581ad5d32 (patch)
treef30c53bd4a05879e254d5b50f9272ff1a80958a9
parent43373f80316a01fb2d4f62de0a0b43b01539dd5e (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 0c95972b2159..1e3f06c3f41b 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -1526,11 +1526,7 @@ 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;
}
/*
@@ -1574,6 +1570,9 @@ 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);
}
/*