_spin_lock_irqsave  204 include/linux/spinlock.h 		flags = _spin_lock_irqsave(lock);	\
_spin_lock_irqsave  227 include/linux/spinlock.h 		flags = _spin_lock_irqsave(lock);			\
_spin_lock_irqsave  236 include/linux/spinlock.h 		_spin_lock_irqsave(lock, flags);	\