_atomic_dec_and_lock  454 include/linux/spinlock.h extern int _atomic_dec_and_lock(atomic_t *atomic, spinlock_t *lock);
_atomic_dec_and_lock  456 include/linux/spinlock.h 		__cond_lock(lock, _atomic_dec_and_lock(atomic, lock))
_atomic_dec_and_lock   35 lib/dec_and_lock.c EXPORT_SYMBOL(_atomic_dec_and_lock);