diff options
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 701d4aceb4f..01e2877e8e0 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -118,10 +118,14 @@ static inline notrace void set_soft_enabled(unsigned long enable) static inline notrace void decrementer_check_overflow(void) { u64 now = get_tb_or_rtc(); - u64 *next_tb = &__get_cpu_var(decrementers_next_tb); + u64 *next_tb; + + preempt_disable(); + next_tb = &__get_cpu_var(decrementers_next_tb); if (now >= *next_tb) set_dec(1); + preempt_enable(); } notrace void arch_local_irq_restore(unsigned long en) |