__pv_queued_spin_unlock_slowpath
__PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock_slowpath, ".spinlock.text");
void __lockfunc __pv_queued_spin_unlock_slowpath(struct qspinlock *lock, u8 locked);
__pv_queued_spin_unlock_slowpath(lock, locked);