search for: pcpu_run

...index 7b89a75..4aadd16 100644 > --- a/arch/s390/kernel/smp.c > +++ b/arch/s390/kernel/smp.c > @@ -376,10 +376,15 @@ 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) > { > diff --...

...index 7b89a75..4aadd16 100644 > --- a/arch/s390/kernel/smp.c > +++ b/arch/s390/kernel/smp.c > @@ -376,10 +376,15 @@ 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) > { > diff --...

...cpu_scheduled(int cpu) { return 1; } >>> arch/s390/kernel/smp.c:371:int smp_vcpu_scheduled(int cpu) >>> arch/s390/lib/spinlock.c:44: if (smp_vcpu_scheduled(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; >>> I saw smp_vcpu_scheduled() returns true always on !SMP...

...cpu_scheduled(int cpu) { return 1; } >>> arch/s390/kernel/smp.c:371:int smp_vcpu_scheduled(int cpu) >>> arch/s390/lib/spinlock.c:44: if (smp_vcpu_scheduled(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; >>> I saw smp_vcpu_scheduled() returns true always on !SMP...

...a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 35531fe..b988ed1 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) { diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinloc...

...a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 35531fe..b988ed1 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) { diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinloc...

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code change, fix typos, update some comments change from v1: a simplier definition of default vcpu_is_preempted skip mahcine type check on ppc,

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

change from v6: fix typos and remove uncessary comments. change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3:

change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code

change from v5: spilt x86/kvm patch into guest/host part. introduce kvm_write_guest_offset_cached. fix some typos. rebase patch onto 4.9.2 change from v4: spilt x86 kvm vcpu preempted check into two patches. add documentation patch. add x86 vcpu preempted check patch under xen add s390 vcpu preempted check patch change from v3: add x86 vcpu preempted check patch change from v2: no code