diff options
Diffstat (limited to 'arch/s390/kernel/idle.c')
| -rw-r--r-- | arch/s390/kernel/idle.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 8f8456816d83..0d7fbdfe995a 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -24,19 +24,19 @@ void enabled_wait(void) { struct s390_idle_data *idle = this_cpu_ptr(&s390_idle); unsigned long long idle_time; - unsigned long psw_mask; + unsigned long psw_mask, flags; - trace_hardirqs_on(); /* Wait for external, I/O or machine check interrupt. */ psw_mask = PSW_KERNEL_BITS | PSW_MASK_WAIT | PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK; clear_cpu_flag(CIF_NOHZ_DELAY); + local_irq_save(flags); /* Call the assembler magic in entry.S */ psw_idle(idle, psw_mask); + local_irq_restore(flags); - trace_hardirqs_off(); /* Account time spent with enabled wait psw loaded as idle time. */ write_seqcount_begin(&idle->seqcount); @@ -118,22 +118,16 @@ u64 arch_cpu_idle_time(int cpu) void arch_cpu_idle_enter(void) { - local_mcck_disable(); } void arch_cpu_idle(void) { - if (!test_cpu_flag(CIF_MCCK_PENDING)) - /* Halt the cpu and keep track of cpu time accounting. */ - enabled_wait(); + enabled_wait(); local_irq_enable(); } void arch_cpu_idle_exit(void) { - local_mcck_enable(); - if (test_cpu_flag(CIF_MCCK_PENDING)) - s390_handle_mcck(); } void arch_cpu_idle_dead(void) |