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-rw-r--r--include/linux/interrupt.h2
-rw-r--r--kernel/time/tick-sched.c3
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index c5f856a040b9..5e4e6170f43a 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -430,6 +430,8 @@ enum
NR_SOFTIRQS
};
+#define SOFTIRQ_STOP_IDLE_MASK (~(1 << RCU_SOFTIRQ))
+
/* map softirq index to softirq name. update 'softirq_to_name' in
* kernel/softirq.c when adding a new softirq.
*/
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 024540f97f74..4b1785a7bb83 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -436,7 +436,8 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
if (unlikely(local_softirq_pending() && cpu_online(cpu))) {
static int ratelimit;
- if (ratelimit < 10) {
+ if (ratelimit < 10 &&
+ (local_softirq_pending() & SOFTIRQ_STOP_IDLE_MASK)) {
printk(KERN_ERR "NOHZ: local_softirq_pending %02x\n",
(unsigned int) local_softirq_pending());
ratelimit++;