On 04/07/19 13:46, Yi Wang wrote: > The condition to test is likely() to be true when make defconfig. > Add the hint. > > Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx> > --- > arch/x86/kvm/cpuid.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > index 4992e7c..64fff41 100644 > --- a/arch/x86/kvm/cpuid.c > +++ b/arch/x86/kvm/cpuid.c > @@ -642,7 +642,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, > (1 << KVM_FEATURE_ASYNC_PF_VMEXIT) | > (1 << KVM_FEATURE_PV_SEND_IPI); > > - if (sched_info_on()) > + if (likely(sched_info_on())) > entry->eax |= (1 << KVM_FEATURE_STEAL_TIME); This is not a fast path, so adding likely/unlikely is unnecessary. Paolo > entry->ebx = 0; >
