Split out struct kvmppc_vcore creation to separate function

No code changes, just split it out to a function so that with the addition
of micro partition prefetch buffer allocation (in subsequent patch) looks
neater and doesn't require excessive indentation.
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/kvm/book3s_hv.c

@@ -1303,6 +1303,26 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
 	return r;
 }
 
+static struct kvmppc_vcore *kvmppc_vcore_create(struct kvm *kvm, int core)
+{
+	struct kvmppc_vcore *vcore;
+
+	vcore = kzalloc(sizeof(struct kvmppc_vcore), GFP_KERNEL);
+
+	if (vcore == NULL)
+		return NULL;
+
+	INIT_LIST_HEAD(&vcore->runnable_threads);
+	spin_lock_init(&vcore->lock);
+	init_waitqueue_head(&vcore->wq);
+	vcore->preempt_tb = TB_NIL;
+	vcore->lpcr = kvm->arch.lpcr;
+	vcore->first_vcpuid = core * threads_per_subcore;
+	vcore->kvm = kvm;
+
+	return vcore;
+}
+
 static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
 						   unsigned int id)
 {
@@ -1354,16 +1374,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
 	mutex_lock(&kvm->lock);
 	vcore = kvm->arch.vcores[core];
 	if (!vcore) {
-		vcore = kzalloc(sizeof(struct kvmppc_vcore), GFP_KERNEL);
-		if (vcore) {
-			INIT_LIST_HEAD(&vcore->runnable_threads);
-			spin_lock_init(&vcore->lock);
-			init_waitqueue_head(&vcore->wq);
-			vcore->preempt_tb = TB_NIL;
-			vcore->lpcr = kvm->arch.lpcr;
-			vcore->first_vcpuid = core * threads_per_subcore;
-			vcore->kvm = kvm;
-		}
+		vcore = kvmppc_vcore_create(kvm, core);
 		kvm->arch.vcores[core] = vcore;
 		kvm->arch.online_vcores++;
 	}