aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/softirq.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/softirq.c')
-rw-r--r--kernel/softirq.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c
index e7c69a720d69..466e75ce271a 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -102,20 +102,6 @@ void local_bh_disable(void)
102 102
103EXPORT_SYMBOL(local_bh_disable); 103EXPORT_SYMBOL(local_bh_disable);
104 104
105void __local_bh_enable(void)
106{
107 WARN_ON_ONCE(in_irq());
108
109 /*
110 * softirqs should never be enabled by __local_bh_enable(),
111 * it always nests inside local_bh_enable() sections:
112 */
113 WARN_ON_ONCE(softirq_count() == SOFTIRQ_OFFSET);
114
115 sub_preempt_count(SOFTIRQ_OFFSET);
116}
117EXPORT_SYMBOL_GPL(__local_bh_enable);
118
119/* 105/*
120 * Special-case - softirqs can safely be enabled in 106 * Special-case - softirqs can safely be enabled in
121 * cond_resched_softirq(), or by __do_softirq(), 107 * cond_resched_softirq(), or by __do_softirq(),
@@ -269,6 +255,7 @@ void irq_enter(void)
269{ 255{
270 int cpu = smp_processor_id(); 256 int cpu = smp_processor_id();
271 257
258 rcu_irq_enter();
272 if (idle_cpu(cpu) && !in_interrupt()) { 259 if (idle_cpu(cpu) && !in_interrupt()) {
273 __irq_enter(); 260 __irq_enter();
274 tick_check_idle(cpu); 261 tick_check_idle(cpu);
@@ -295,9 +282,9 @@ void irq_exit(void)
295 282
296#ifdef CONFIG_NO_HZ 283#ifdef CONFIG_NO_HZ
297 /* Make sure that timer wheel updates are propagated */ 284 /* Make sure that timer wheel updates are propagated */
298 if (!in_interrupt() && idle_cpu(smp_processor_id()) && !need_resched())
299 tick_nohz_stop_sched_tick(0);
300 rcu_irq_exit(); 285 rcu_irq_exit();
286 if (idle_cpu(smp_processor_id()) && !in_interrupt() && !need_resched())
287 tick_nohz_stop_sched_tick(0);
301#endif 288#endif
302 preempt_enable_no_resched(); 289 preempt_enable_no_resched();
303} 290}