1501 static inline int _double_lock_balance(struct rq *this_rq, struct rq *busiest)  in _double_lock_balance()  argument
1503 	__acquires(busiest->lock)  in _double_lock_balance()
1507 	double_rq_lock(this_rq, busiest);  in _double_lock_balance()
1520 static inline int _double_lock_balance(struct rq *this_rq, struct rq *busiest)  in _double_lock_balance()  argument
1522 	__acquires(busiest->lock)  in _double_lock_balance()
1527 	if (unlikely(!raw_spin_trylock(&busiest->lock))) {  in _double_lock_balance()
1528 		if (busiest < this_rq) {  in _double_lock_balance()
1530 			raw_spin_lock(&busiest->lock);  in _double_lock_balance()
1535 			raw_spin_lock_nested(&busiest->lock,  in _double_lock_balance()
1546 static inline int double_lock_balance(struct rq *this_rq, struct rq *busiest)  in double_lock_balance()  argument
1554 	return _double_lock_balance(this_rq, busiest);  in double_lock_balance()
1557 static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest)  in double_unlock_balance()  argument
1558 	__releases(busiest->lock)  in double_unlock_balance()
1560 	raw_spin_unlock(&busiest->lock);  in double_unlock_balance()