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Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c29
1 files changed, 12 insertions, 17 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8074cb4b7cbf..4f977d0d25c2 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -428,34 +428,27 @@ void smp_stop_cpu(void)
* This is the main routine where commands issued by other
* cpus are handled.
*/
-static void do_ext_call_interrupt(struct ext_code ext_code,
- unsigned int param32, unsigned long param64)
+static void smp_handle_ext_call(void)
{
unsigned long bits;
- int cpu;
-
- cpu = smp_processor_id();
- if (ext_code.code == 0x1202)
- inc_irq_stat(IRQEXT_EXC);
- else
- inc_irq_stat(IRQEXT_EMS);
- /*
- * handle bit signal external calls
- */
- bits = xchg(&pcpu_devices[cpu].ec_mask, 0);
+ /* handle bit signal external calls */
+ bits = xchg(&pcpu_devices[smp_processor_id()].ec_mask, 0);
if (test_bit(ec_stop_cpu, &bits))
smp_stop_cpu();
-
if (test_bit(ec_schedule, &bits))
scheduler_ipi();
-
if (test_bit(ec_call_function, &bits))
generic_smp_call_function_interrupt();
-
if (test_bit(ec_call_function_single, &bits))
generic_smp_call_function_single_interrupt();
+}
+static void do_ext_call_interrupt(struct ext_code ext_code,
+ unsigned int param32, unsigned long param64)
+{
+ inc_irq_stat(ext_code.code == 0x1202 ? IRQEXT_EXC : IRQEXT_EMS);
+ smp_handle_ext_call();
}
void arch_send_call_function_ipi_mask(const struct cpumask *mask)
@@ -645,7 +638,7 @@ static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info,
continue;
pcpu = pcpu_devices + cpu;
pcpu->address = info->cpu[i].address;
- pcpu->state = (cpu >= info->configured) ?
+ pcpu->state = (i >= info->configured) ?
CPU_STATE_STANDBY : CPU_STATE_CONFIGURED;
smp_cpu_set_polarization(cpu, POLARIZATION_UNKNOWN);
set_cpu_present(cpu, true);
@@ -760,6 +753,8 @@ int __cpu_disable(void)
{
unsigned long cregs[16];
+ /* Handle possible pending IPIs */
+ smp_handle_ext_call();
set_cpu_online(smp_processor_id(), false);
/* Disable pseudo page faults on this cpu. */
pfault_fini();