OP_VFS_STATE_GIVEN_UP
switch (new_op->op_state - OP_VFS_STATE_GIVEN_UP) {
#define set_op_state_given_up(op) ((op)->op_state = OP_VFS_STATE_GIVEN_UP)
#define op_state_given_up(op) ((op)->op_state & OP_VFS_STATE_GIVEN_UP)
op->op_state |= OP_VFS_STATE_GIVEN_UP;