kvm: Provide kvm_vcpu_eligible_for_directed_yield() stub

Commit 7940876e1330671708186ac3386aa521ffb5c182 ("kvm: make local
functions static") broke KVM PPC builds due to removing (rather than
moving) the stub version of kvm_vcpu_eligible_for_directed_yield().

This patch reintroduces it.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Alexander Graf <agraf@suse.de>
[Move the #ifdef inside the function. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index b28579e84248d9154a3b8f34d473913fd3c9ea5b..9ed9c8c7b8745ea63b14bc2761c8b5a5b321b1c3 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1735,7 +1735,6 @@ bool kvm_vcpu_yield_to(struct kvm_vcpu *target)
 }
 EXPORT_SYMBOL_GPL(kvm_vcpu_yield_to);
 
-#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
 /*
  * Helper that checks whether a VCPU is eligible for directed yield.
  * Most eligible candidate to yield is decided by following heuristics:
@@ -1760,6 +1759,7 @@ EXPORT_SYMBOL_GPL(kvm_vcpu_yield_to);
  */
 static bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu)
 {
+#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
        bool eligible;
 
        eligible = !vcpu->spin_loop.in_spin_loop ||
@@ -1770,8 +1770,10 @@ static bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu)
                kvm_vcpu_set_dy_eligible(vcpu, !vcpu->spin_loop.dy_eligible);
 
        return eligible;
-}
+#else
+       return true;
 #endif
+}
 
 void kvm_vcpu_on_spin(struct kvm_vcpu *me)
 {