Re: Atomic non-durable file write API

From: Randy Dunlap
Date: Mon Dec 06 2010 - 12:03:41 EST


On Mon, 6 Dec 2010 17:45:23 +0100 Olaf van der Spek wrote:

> On Mon, Nov 29, 2010 at 1:37 PM, Olaf van der Spek <olafvdspek@xxxxxxxxx> wrote:
> > Hi,
> >
> > 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. However, the
> > durable aspect of fsync isn't always required and this way has other
> > issues.
> > What is the recommended way for atomic non-durable (complete) file writes?
> >
> > I'm also wondering why FSs commit after open/truncate but before
> > write/close. AFAIK this isn't necessary and thus suboptimal.
>
> Somebody?
> --

maybe try linux-fsdevel@xxxxxxxxxxxxxxx or linux-ext4@xxxxxxxxxxxxxxx
mailing lists?

---
~Randy
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