diff options
Diffstat (limited to 'arch/s390/lib')
| -rw-r--r-- | arch/s390/lib/delay.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c index 3f5f680726e..97c1eca83cc 100644 --- a/arch/s390/lib/delay.c +++ b/arch/s390/lib/delay.c @@ -36,9 +36,11 @@ static void __udelay_disabled(unsigned long usecs) cr0 = (cr0_saved & 0xffff00e0) | 0x00000800; __ctl_load(cr0 , 0, 0); mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT; + lockdep_off(); trace_hardirqs_on(); __load_psw_mask(mask); local_irq_disable(); + lockdep_on(); __ctl_load(cr0_saved, 0, 0); local_tick_enable(clock_saved); set_clock_comparator(S390_lowcore.clock_comparator); |