KVM: Use CONFIG_PREEMPT_NOTIFIERS around struct preempt_notifier

This allows kvm_host.h to be #included even when struct preempt_notifier is
undefined. This is needed to build ppc asm-offsets.h.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 928b0d59e9ba..b90ca368dcf6 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -67,7 +67,9 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
 
 struct kvm_vcpu {
         struct kvm *kvm;
+#ifdef CONFIG_PREEMPT_NOTIFIERS
         struct preempt_notifier preempt_notifier;
+#endif
         int vcpu_id;
         struct mutex mutex;
         int   cpu;