linux-ext4 - confused by delayed allocation and ordered journal

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Message-ID: <AANLkTi=2S3JsAOP290_1ASMNGKMFZK+Srt4v5Qs474dB@mail.gmail.com>
Date:	Sat, 25 Dec 2010 21:15:28 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	linux-ext4@...r.kernel.org
Subject: confused by delayed allocation and ordered journal

Hi all,

I found that if a block'allocation is delayed, and is not allocated
when journal flushes it, then journal just redirties it and return in
journal_submit_data_buffers.

If I understand right, how to guarantee that the journal mode is ordered?

Thanks,
Yongqiang.
-- 
Best Wishes
Yongqiang Yang
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