diff options
| -rw-r--r-- | arch/s390/kernel/smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index d140160c9aec..efd2c1968000 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -818,7 +818,8 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) pcpu_prepare_secondary(pcpu, cpu); pcpu_attach_task(pcpu, tidle); pcpu_start_fn(pcpu, smp_start_secondary, NULL); - while (!cpu_online(cpu)) + /* Wait until cpu puts itself in the online & active maps */ + while (!cpu_online(cpu) || !cpu_active(cpu)) cpu_relax(); return 0; } |