Merge branch 'devel' into next

[pandora-kernel.git] / arch / s390 / kernel / process.c

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index c1aff19..85defd0 100644 (file)
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -75,46 +75,19 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
        return sf->gprs[8];
 }
 
-/*
- * Need to know about CPUs going idle?
- */
-static ATOMIC_NOTIFIER_HEAD(idle_chain);
 DEFINE_PER_CPU(struct s390_idle_data, s390_idle);
 
-int register_idle_notifier(struct notifier_block *nb)
-{
-       return atomic_notifier_chain_register(&idle_chain, nb);
-}
-EXPORT_SYMBOL(register_idle_notifier);
-
-int unregister_idle_notifier(struct notifier_block *nb)
-{
-       return atomic_notifier_chain_unregister(&idle_chain, nb);
-}
-EXPORT_SYMBOL(unregister_idle_notifier);
-
 static int s390_idle_enter(void)
 {
        struct s390_idle_data *idle;
-       int nr_calls = 0;
-       void *hcpu;
-       int rc;
 
-       hcpu = (void *)(long)smp_processor_id();
-       rc = __atomic_notifier_call_chain(&idle_chain, S390_CPU_IDLE, hcpu, -1,
-                                         &nr_calls);
-       if (rc == NOTIFY_BAD) {
-               nr_calls--;
-               __atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
-                                            hcpu, nr_calls, NULL);
-               return rc;
-       }
        idle = &__get_cpu_var(s390_idle);
        spin_lock(&idle->lock);
        idle->idle_count++;
        idle->in_idle = 1;
        idle->idle_enter = get_clock();
        spin_unlock(&idle->lock);
+       vtime_stop_cpu_timer();
        return NOTIFY_OK;
 }
 
@@ -122,13 +95,12 @@ void s390_idle_leave(void)
 {
        struct s390_idle_data *idle;
 
+       vtime_start_cpu_timer();
        idle = &__get_cpu_var(s390_idle);
        spin_lock(&idle->lock);
        idle->idle_time += get_clock() - idle->idle_enter;
        idle->in_idle = 0;
        spin_unlock(&idle->lock);
-       atomic_notifier_call_chain(&idle_chain, S390_CPU_NOT_IDLE,
-                                  (void *)(long) smp_processor_id());
 }
 
 extern void s390_handle_mcck(void);
@@ -180,24 +152,6 @@ void cpu_idle(void)
        }
 }
 
-void show_regs(struct pt_regs *regs)
-{
-       print_modules();
-       printk("CPU: %d %s %s %.*s\n",
-              task_thread_info(current)->cpu, print_tainted(),
-              init_utsname()->release,
-              (int)strcspn(init_utsname()->version, " "),
-              init_utsname()->version);
-       printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
-              current->comm, current->pid, current,
-              (void *) current->thread.ksp);
-       show_registers(regs);
-       /* Show stack backtrace if pt_regs is from kernel mode */
-       if (!(regs->psw.mask & PSW_MASK_PSTATE))
-               show_trace(NULL, (unsigned long *) regs->gprs[15]);
-       show_last_breaking_event(regs);
-}
-
 extern void kernel_thread_starter(void);
 
 asm(