nfsd4: remove redundant check from nfsd4_open

[safe/jmp/linux-2.6] / kernel / softirq.c

diff --git a/kernel/softirq.c b/kernel/softirq.c
index 83ba21a..9041ea7 100644 (file)
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -102,20 +102,6 @@ void local_bh_disable(void)
 
 EXPORT_SYMBOL(local_bh_disable);
 
-void __local_bh_enable(void)
-{
-       WARN_ON_ONCE(in_irq());
-
-       /*
-        * softirqs should never be enabled by __local_bh_enable(),
-        * it always nests inside local_bh_enable() sections:
-        */
-       WARN_ON_ONCE(softirq_count() == SOFTIRQ_OFFSET);
-
-       sub_preempt_count(SOFTIRQ_OFFSET);
-}
-EXPORT_SYMBOL_GPL(__local_bh_enable);
-
 /*
  * Special-case - softirqs can safely be enabled in
  * cond_resched_softirq(), or by __do_softirq(),
@@ -267,16 +253,14 @@ asmlinkage void do_softirq(void)
  */
 void irq_enter(void)
 {
-#ifdef CONFIG_NO_HZ
        int cpu = smp_processor_id();
-       if (idle_cpu(cpu) && !in_interrupt())
-               tick_nohz_stop_idle(cpu);
-#endif
-       __irq_enter();
-#ifdef CONFIG_NO_HZ
-       if (idle_cpu(cpu))
-               tick_nohz_update_jiffies();
-#endif
+
+       rcu_irq_enter();
+       if (idle_cpu(cpu) && !in_interrupt()) {
+               __irq_enter();
+               tick_check_idle(cpu);
+       } else
+               __irq_enter();
 }
 
 #ifdef __ARCH_IRQ_EXIT_IRQS_DISABLED
@@ -298,9 +282,9 @@ void irq_exit(void)
 
 #ifdef CONFIG_NO_HZ
        /* Make sure that timer wheel updates are propagated */
-       if (!in_interrupt() && idle_cpu(smp_processor_id()) && !need_resched())
-               tick_nohz_stop_sched_tick(0);
        rcu_irq_exit();
+       if (idle_cpu(smp_processor_id()) && !in_interrupt() && !need_resched())
+               tick_nohz_stop_sched_tick(0);
 #endif
        preempt_enable_no_resched();
 }
@@ -642,6 +626,7 @@ static int ksoftirqd(void * __bind_cpu)
                        preempt_enable_no_resched();
                        cond_resched();
                        preempt_disable();
+                       rcu_qsctr_inc((long)__bind_cpu);
                }
                preempt_enable();
                set_current_state(TASK_INTERRUPTIBLE);
@@ -749,7 +734,7 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb,
                        break;
                /* Unbind so it can run.  Fall thru. */
                kthread_bind(per_cpu(ksoftirqd, hotcpu),
-                            any_online_cpu(cpu_online_map));
+                            cpumask_any(cpu_online_mask));
        case CPU_DEAD:
        case CPU_DEAD_FROZEN: {
                struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
@@ -800,3 +785,23 @@ int on_each_cpu(void (*func) (void *info), void *info, int wait)
 }
 EXPORT_SYMBOL(on_each_cpu);
 #endif
+
+/*
+ * [ These __weak aliases are kept in a separate compilation unit, so that
+ *   GCC does not inline them incorrectly. ]
+ */
+
+int __init __weak early_irq_init(void)
+{
+       return 0;
+}
+
+int __init __weak arch_early_irq_init(void)
+{
+       return 0;
+}
+
+int __weak arch_init_chip_data(struct irq_desc *desc, int cpu)
+{
+       return 0;
+}