On Wed, Sep 06, 2017 at 11:49:49AM -0400, Waiman Long wrote:
> > #define virt_spin_lock virt_spin_lock
> > static inline bool virt_spin_lock(struct qspinlock *lock)
> > {
> > + if (!static_branch_likely(&virt_spin_lock_key))
> > + return false;
> > if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
> > return false;
> >
Now native has two NOPs instead of one. Can't we merge these two static
branches?
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