OWNER_NULL 703 kernel/locking/rwsem.c #define OWNER_SPINNABLE (OWNER_NULL | OWNER_WRITER | OWNER_READER) OWNER_NULL 714 kernel/locking/rwsem.c return owner ? OWNER_WRITER : OWNER_NULL; OWNER_NULL 791 kernel/locking/rwsem.c int prev_owner_state = OWNER_NULL; OWNER_NULL 1230 kernel/locking/rwsem.c rwsem_spin_on_owner(sem, RWSEM_NONSPINNABLE) == OWNER_NULL)