From: "Joseph D. Wagner" <joe@josephdwagner.info>
Subject: Re: ext4 file replace guarantees
Date: Fri, 21 Jun 2013 09:25:13 -0700
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Cc: <linux-ext4@vger.kernel.org>, Ryan Lortie <desrt@desrt.ca>
To: "Theodore Ts'o" <tytso@mit.edu>
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> I want to know that either the old data will be there, or the new
> data.

Ted,

Please forgive me for the stupid question.  Would Ryan's concerns be
addressed by configuring ext4 to run in data=journal mode?

I realize that as a programmer he cannot guarantee that his application
will run on a file system in a particular configuration.  I'm just
curious as to how this all fits together.

Joseph D. Wagner