linux-ext4 - Re: ext4 file replace guarantees

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Message-ID: <bf675d01f2290be4e38f602ce78643c9@josephdwagner.info>
Date:	Fri, 21 Jun 2013 09:25:13 -0700
From:	"Joseph D. Wagner" <joe@...ephdwagner.info>
To:	"Theodore Ts'o" <tytso@....edu>
Cc:	<linux-ext4@...r.kernel.org>, Ryan Lortie <desrt@...rt.ca>
Subject: Re: ext4 file replace guarantees

> 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
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