慢慢欣賞linux ext3文件系統 獲取日誌塊

void journal_commit_transaction(journal_t *journal)
{
	err = journal_submit_data_buffers(journal, commit_transaction,
					  write_op);//先刷數據
	while (commit_transaction->t_buffers) {
		descriptor = journal_get_descriptor_buffer(journal);
		=>struct journal_head *journal_get_descriptor_buffer(journal_t *journal)
		{
			err = journal_next_log_block(journal, &blocknr);//獲取日誌塊
		}
	}
}