diff options
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 6afaf6f73069..4dc864ef9cdf 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -189,6 +189,8 @@ int __cpuinit __cpu_up(unsigned int cpu) } #ifdef CONFIG_HOTPLUG_CPU +static void percpu_timer_stop(void); + /* * __cpu_disable runs on the processor to be shutdown. */ @@ -216,7 +218,7 @@ int __cpu_disable(void) /* * Stop the local timer for this CPU. */ - local_timer_stop(); + percpu_timer_stop(); /* * Flush user cache and TLB mappings, and then remove this CPU @@ -539,6 +541,21 @@ void __cpuinit percpu_timer_setup(void) local_timer_setup(evt); } +#ifdef CONFIG_HOTPLUG_CPU +/* + * The generic clock events code purposely does not stop the local timer + * on CPU_DEAD/CPU_DEAD_FROZEN hotplug events, so we have to do it + * manually here. + */ +static void percpu_timer_stop(void) +{ + unsigned int cpu = smp_processor_id(); + struct clock_event_device *evt = &per_cpu(percpu_clockevent, cpu); + + evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt); +} +#endif + static DEFINE_SPINLOCK(stop_lock); /* |