diff options
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/processor.c | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 9 |
2 files changed, 9 insertions, 4 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 81d0808085e6..9e60ef144d03 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -53,7 +53,7 @@ void s390_update_cpu_mhz(void) on_each_cpu(update_cpu_mhz, NULL, 0); } -void notrace cpu_relax(void) +void notrace cpu_relax_yield(void) { if (!smp_cpu_mtid && MACHINE_HAS_DIAG44) { diag_stat_inc(DIAG_STAT_X044); @@ -61,7 +61,7 @@ void notrace cpu_relax(void) } barrier(); } -EXPORT_SYMBOL(cpu_relax); +EXPORT_SYMBOL(cpu_relax_yield); /* * cpu_init - initializes state that is per-CPU. diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 35531fe1c5ea..b988ed1d75ad 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -368,10 +368,15 @@ int smp_find_processor_id(u16 address) return -1; } -int smp_vcpu_scheduled(int cpu) +bool arch_vcpu_is_preempted(int cpu) { - return pcpu_running(pcpu_devices + cpu); + if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) + return false; + if (pcpu_running(pcpu_devices + cpu)) + return false; + return true; } +EXPORT_SYMBOL(arch_vcpu_is_preempted); void smp_yield_cpu(int cpu) { |