ALSA: usb-audio: add support for Akai MPD16

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

diff --git a/kernel/softirq.c b/kernel/softirq.c
index f8749e5..0db913a 100644 (file)
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -302,9 +302,9 @@ void irq_exit(void)
        if (!in_interrupt() && local_softirq_pending())
                invoke_softirq();
 
+       rcu_irq_exit();
 #ifdef CONFIG_NO_HZ
        /* Make sure that timer wheel updates are propagated */
-       rcu_irq_exit();
        if (idle_cpu(smp_processor_id()) && !in_interrupt() && !need_resched())
                tick_nohz_stop_sched_tick(0);
 #endif
@@ -500,22 +500,17 @@ EXPORT_SYMBOL(tasklet_kill);
  */
 
 /*
- * The trampoline is called when the hrtimer expires. If this is
- * called from the hrtimer interrupt then we schedule the tasklet as
- * the timer callback function expects to run in softirq context. If
- * it's called in softirq context anyway (i.e. high resolution timers
- * disabled) then the hrtimer callback is called right away.
+ * The trampoline is called when the hrtimer expires. It schedules a tasklet
+ * to run __tasklet_hrtimer_trampoline() which in turn will call the intended
+ * hrtimer callback, but from softirq context.
  */
 static enum hrtimer_restart __hrtimer_tasklet_trampoline(struct hrtimer *timer)
 {
        struct tasklet_hrtimer *ttimer =
                container_of(timer, struct tasklet_hrtimer, timer);
 
-       if (hrtimer_is_hres_active(timer)) {
-               tasklet_hi_schedule(&ttimer->tasklet);
-               return HRTIMER_NORESTART;
-       }
-       return ttimer->function(timer);
+       tasklet_hi_schedule(&ttimer->tasklet);
+       return HRTIMER_NORESTART;
 }
 
 /*
@@ -697,7 +692,7 @@ void __init softirq_init(void)
        open_softirq(HI_SOFTIRQ, tasklet_hi_action);
 }
 
-static int ksoftirqd(void * __bind_cpu)
+static int run_ksoftirqd(void * __bind_cpu)
 {
        set_current_state(TASK_INTERRUPTIBLE);
 
@@ -721,7 +716,7 @@ static int ksoftirqd(void * __bind_cpu)
                        preempt_enable_no_resched();
                        cond_resched();
                        preempt_disable();
-                       rcu_sched_qs((long)__bind_cpu);
+                       rcu_note_context_switch((long)__bind_cpu);
                }
                preempt_enable();
                set_current_state(TASK_INTERRUPTIBLE);
@@ -810,7 +805,7 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb,
        switch (action) {
        case CPU_UP_PREPARE:
        case CPU_UP_PREPARE_FROZEN:
-               p = kthread_create(ksoftirqd, hcpu, "ksoftirqd/%d", hotcpu);
+               p = kthread_create(run_ksoftirqd, hcpu, "ksoftirqd/%d", hotcpu);
                if (IS_ERR(p)) {
                        printk("ksoftirqd for %i failed\n", hotcpu);
                        return NOTIFY_BAD;