Pull cpuidle into release branch

[linux-2.6-omap-h63xx.git] / net / iucv / iucv.c

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index fb3faf72e8508f73cea2e435182ea534f84a0ecc..a2f5a6ea389520832c86c8b5e1f9c907de518796 100644 (file)
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -389,7 +389,7 @@ static void iucv_block_cpu(void *data)
  * iucv_declare_cpu
  * @data: unused
  *
- * Declare a interupt buffer on this cpu.
+ * Declare a interrupt buffer on this cpu.
  */
 static void iucv_declare_cpu(void *data)
 {
@@ -479,7 +479,8 @@ static void iucv_setmask_mp(void)
                /* Enable all cpus with a declared buffer. */
                if (cpu_isset(cpu, iucv_buffer_cpumask) &&
                    !cpu_isset(cpu, iucv_irq_cpumask))
-                       smp_call_function_on(iucv_allow_cpu, NULL, 0, 1, cpu);
+                       smp_call_function_single(cpu, iucv_allow_cpu,
+                                                NULL, 0, 1);
        preempt_enable();
 }
 
@@ -497,7 +498,7 @@ static void iucv_setmask_up(void)
        cpumask = iucv_irq_cpumask;
        cpu_clear(first_cpu(iucv_irq_cpumask), cpumask);
        for_each_cpu_mask(cpu, cpumask)
-               smp_call_function_on(iucv_block_cpu, NULL, 0, 1, cpu);
+               smp_call_function_single(cpu, iucv_block_cpu, NULL, 0, 1);
 }
 
 /**
@@ -522,7 +523,7 @@ static int iucv_enable(void)
        rc = -EIO;
        preempt_disable();
        for_each_online_cpu(cpu)
-               smp_call_function_on(iucv_declare_cpu, NULL, 0, 1, cpu);
+               smp_call_function_single(cpu, iucv_declare_cpu, NULL, 0, 1);
        preempt_enable();
        if (cpus_empty(iucv_buffer_cpumask))
                /* No cpu could declare an iucv buffer. */
@@ -556,6 +557,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
 
        switch (action) {
        case CPU_UP_PREPARE:
+       case CPU_UP_PREPARE_FROZEN:
                if (!percpu_populate(iucv_irq_data,
                                     sizeof(struct iucv_irq_data),
                                     GFP_KERNEL|GFP_DMA, cpu))
@@ -567,24 +569,29 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                }
                break;
        case CPU_UP_CANCELED:
+       case CPU_UP_CANCELED_FROZEN:
        case CPU_DEAD:
+       case CPU_DEAD_FROZEN:
                percpu_depopulate(iucv_param, cpu);
                percpu_depopulate(iucv_irq_data, cpu);
                break;
        case CPU_ONLINE:
+       case CPU_ONLINE_FROZEN:
        case CPU_DOWN_FAILED:
-               smp_call_function_on(iucv_declare_cpu, NULL, 0, 1, cpu);
+       case CPU_DOWN_FAILED_FROZEN:
+               smp_call_function_single(cpu, iucv_declare_cpu, NULL, 0, 1);
                break;
        case CPU_DOWN_PREPARE:
+       case CPU_DOWN_PREPARE_FROZEN:
                cpumask = iucv_buffer_cpumask;
                cpu_clear(cpu, cpumask);
                if (cpus_empty(cpumask))
                        /* Can't offline last IUCV enabled cpu. */
                        return NOTIFY_BAD;
-               smp_call_function_on(iucv_retrieve_cpu, NULL, 0, 1, cpu);
+               smp_call_function_single(cpu, iucv_retrieve_cpu, NULL, 0, 1);
                if (cpus_empty(iucv_irq_cpumask))
-                       smp_call_function_on(iucv_allow_cpu, NULL, 0, 1,
-                                            first_cpu(iucv_buffer_cpumask));
+                       smp_call_function_single(first_cpu(iucv_buffer_cpumask),
+                                                iucv_allow_cpu, NULL, 0, 1);
                break;
        }
        return NOTIFY_OK;
@@ -1488,7 +1495,10 @@ static void iucv_tasklet_fn(unsigned long ignored)
        struct iucv_irq_list *p, *n;
 
        /* Serialize tasklet, iucv_path_sever and iucv_path_connect. */
-       spin_lock(&iucv_table_lock);
+       if (!spin_trylock(&iucv_table_lock)) {
+               tasklet_schedule(&iucv_tasklet);
+               return;
+       }
        iucv_active_cpu = smp_processor_id();
 
        spin_lock_irq(&iucv_queue_lock);