NILFS_SC_UNCLOSED
if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags)) {
set_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);
clear_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);
test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) ||
if (test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags))
if (!test_bit(NILFS_SC_UNCLOSED, &sci->sc_flags) ||