linux-ext4 - Re: Atomic file data replace API

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Message-ID: <20101228025937.GE10149@thunk.org>
Date:	Mon, 27 Dec 2010 21:59:37 -0500
From:	Ted Ts'o <tytso@....edu>
To:	Olaf van der Spek <olafvdspek@...il.com>
Cc:	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-ext4@...r.kernel.org
Subject: Re: Atomic file data replace API

On Mon, Dec 27, 2010 at 12:51:54PM +0100, Olaf van der Spek wrote:
> Since the introduction of ext4, some apps/users have had issues with
> file corruption after a system crash. It's not a bug in the FS AFAIK
> and it's not exclusive to ext4.
> Writing a temp file, fsync, rename is often proposed.
> But how does one preserve meta-data, including file owner?

What's the use case where preserving file ownership matters?

       	       	    	  	     	  - Ted
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