f2fs_test_and_clear_bit 2175 fs/f2fs/segment.c exist = f2fs_test_and_clear_bit(offset, se->cur_valid_map); f2fs_test_and_clear_bit 2177 fs/f2fs/segment.c mir_exist = f2fs_test_and_clear_bit(offset, f2fs_test_and_clear_bit 2205 fs/f2fs/segment.c if (f2fs_test_and_clear_bit(offset, se->discard_map))