_atomic_dec_and_lock_irqsave  458 include/linux/spinlock.h extern int _atomic_dec_and_lock_irqsave(atomic_t *atomic, spinlock_t *lock,
_atomic_dec_and_lock_irqsave  461 include/linux/spinlock.h 		__cond_lock(lock, _atomic_dec_and_lock_irqsave(atomic, lock, &(flags)))
_atomic_dec_and_lock_irqsave   51 lib/dec_and_lock.c EXPORT_SYMBOL(_atomic_dec_and_lock_irqsave);