diff options
| -rw-r--r-- | arch/arm/kernel/process.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 09f001a1094..d12f92e011d 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -235,6 +235,16 @@ __setup("reboot=", reboot_setup); */ void machine_shutdown(void) { +#ifdef CONFIG_SMP + /* + * Disable preemption so we're guaranteed to + * run to power off or reboot and prevent + * the possibility of switching to another + * thread that might wind up blocking on + * one of the stopped CPUs. + */ + preempt_disable(); +#endif disable_nonboot_cpus(); } |