_spin_unlock_irqrestore   77 include/linux/spinlock_api_up.h #define _spin_unlock_irqrestore(lock, flags)	__UNLOCK_IRQRESTORE(lock, flags)
_spin_unlock_irqrestore  351 kernel/spinlock.c void __lockfunc _spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)