rwsem_acquire
rwsem_acquire(&q->io_lockdep_map, 0, 1, _RET_IP_);
rwsem_acquire(&q->q_lockdep_map, 0, 1, _RET_IP_);
rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
rwsem_acquire(&owner->lock##_map, 0, 0, _THIS_IP_); \
rwsem_acquire(&owner->btrfs_state_change_map[i], 0, 0, _THIS_IP_); \
rwsem_acquire(&kn->dep_map, 0, 1, _RET_IP_);
rwsem_acquire(&kn->dep_map, 0, 0, _RET_IP_);
rwsem_acquire(&lockres->l_lockdep_map, l_subclass,
rwsem_acquire(&j->j_trans_commit_map, 0, 0, _THIS_IP_); \
rwsem_acquire(&cpu_hotplug_lock.dep_map, 0, 0, _THIS_IP_);
rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_);
rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
rwsem_acquire(&zsl->dep_map, 0, 1, _RET_IP_);