NILFS_I_QUEUED
if (!test_bit(NILFS_I_QUEUED, &ii->i_state) &&
set_bit(NILFS_I_QUEUED, &ii->i_state);
clear_bit(NILFS_I_QUEUED, &ii->i_state);
if (!test_bit(NILFS_I_QUEUED, &ii->i_state) &&
set_bit(NILFS_I_QUEUED, &ii->i_state);