-static void do_machine_restart(void * __unused)
-{
- int cpu;
- static atomic_t cpuid = ATOMIC_INIT(-1);
-
- if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1)
- signal_processor(smp_processor_id(), sigp_stop);
-
- /* Wait for all other cpus to enter stopped state */
- for_each_online_cpu(cpu) {
- if (cpu == smp_processor_id())
- continue;
- while(!smp_cpu_not_running(cpu))
- cpu_relax();
- }
-
- /* Store status of other cpus. */
- do_store_status();
-
- /*
- * Finally call reipl. Because we waited for all other
- * cpus to enter this function we know that they do
- * not hold any s390irq-locks (the cpus have been
- * interrupted by an external interrupt and s390irq
- * locks are always held disabled).
- */
- reipl_diag();
-
- if (MACHINE_IS_VM)
- cpcmd ("IPL", NULL, 0, NULL);
- else
- reipl (0x10000 | S390_lowcore.ipl_device);
-}
-