nohz: Introduce arch_needs_cpu

[safe/jmp/linux-2.6] / arch / s390 / kernel / s390_ext.c

diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index 0de305b..59618bc 100644 (file)
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -126,6 +126,8 @@ void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
                /* Serve timer interrupts first. */
                clock_comparator_work();
        kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
+       if (code != 0x1004)
+               __get_cpu_var(s390_idle).nohz_delay = 1;
         index = ext_hash(code);
        for (p = ext_int_hash[index]; p; p = p->next) {
                if (likely(p->code == code))