rwsem_acquire    2787 fs/nfs/nfs4proc.c 	rwsem_acquire(&clp->cl_sem.dep_map, 0, 0, _RET_IP_);
rwsem_acquire      49 kernel/rwsem.c 	rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
rwsem_acquire      64 kernel/rwsem.c 		rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_);
rwsem_acquire     132 kernel/rwsem.c 	rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);