linux-ext4 - Re: [PATCH 2/5] jbd: ordered data integrity fix

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Message-Id: <20080603153304.741eaa2b.akpm@linux-foundation.org>
Date:	Tue, 3 Jun 2008 15:33:04 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Hidehiro Kawai <hidehiro.kawai.ez@...achi.com>
Cc:	sct@...hat.com, adilger@...sterfs.com,
	linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
	jack@...e.cz, jbacik@...hat.com, cmm@...ibm.com, tytso@....edu,
	yumiko.sugita.yf@...achi.com, satoshi.oshima.fk@...achi.com
Subject: Re: [PATCH 2/5] jbd: ordered data integrity fix

On Mon, 02 Jun 2008 19:45:04 +0900
Hidehiro Kawai <hidehiro.kawai.ez@...achi.com> wrote:

> In ordered mode, if a buffer being dirtied exists in the committing

I changed this text to read "if a file data buffer being dirtied". 
Please do be careful when describing all these buffers, else it gets
more confusing that it already is.


> transaction, we write the buffer to the disk, move it from the
> committing transaction to the running transaction, then dirty it.
> But we don't have to remove the buffer from the committing
> transaction when the buffer couldn't be written out, otherwise it
> would miss the error and the committing transaction would not abort.
> 
> This patch adds an error check before removing the buffer from the
> committing transaction.
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