[PATCH] workqueue: Use raise_softirq() to trigger softirq in irq_work handler

[Zqiang]

The bh_pool_kick_normal() and bh_pool_kick_highpri() are registered via
init_irq_work() without IRQ_WORK_HARD_IRQ flag. On PREEMPT_RT, such
work items are processed by the per-CPU irq_workd kthread in preemptible
task context with IRQs enabled. However calling raise_softirq_irqoff()
requires IRQS must be disabled, This commit therefore replace
raise_softirq_irqoff() with raise_softirq() in irq_work handler.

Signed-off-by: Zqiang <qiang.zhang@xxxxxxxxx>
---
 kernel/workqueue.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 78068ae8f28a..0bb978df0200 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -7923,12 +7923,12 @@ static inline void wq_watchdog_init(void) { }
 
 static void bh_pool_kick_normal(struct irq_work *irq_work)
 {
-	raise_softirq_irqoff(TASKLET_SOFTIRQ);
+	raise_softirq(TASKLET_SOFTIRQ);
 }
 
 static void bh_pool_kick_highpri(struct irq_work *irq_work)
 {
-	raise_softirq_irqoff(HI_SOFTIRQ);
+	raise_softirq(HI_SOFTIRQ);
 }
 
 static void __init restrict_unbound_cpumask(const char *name, const struct cpumask *mask)
-- 
2.17.1