Il 12/03/2014 19:54, Waiman Long ha scritto:
@@ -807,8 +889,13 @@ void __init kvm_spinlock_init(void)
        if (!kvm_para_has_feature(KVM_FEATURE_PV_UNHALT))
                return;

+#ifdef CONFIG_QUEUE_SPINLOCK
+       pv_lock_ops.kick_cpu = kvm_kick_cpu_type;
+       pv_lock_ops.hibernate = kvm_hibernate;
+#else
        pv_lock_ops.lock_spinning = PV_CALLEE_SAVE(kvm_lock_spinning);
        pv_lock_ops.unlock_kick = kvm_unlock_kick;
+#endif

This should also disable the unfair path.

Paolo

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