From: "Andreas T.Auer" <andreas.t.auer_lkml_73537@ursus.ath.cx>
To: "Måns Rullgård" <mans@mansr.com>
Cc: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org
Subject: Re: Zero length files - an alternative approach?
Date: Sun, 29 Mar 2009 14:02:50 +0200 [thread overview]
Message-ID: <49CF636A.3030400@ursus.ath.cx> (raw)
In-Reply-To: <yw1xab744lqi.fsf@thrashbarg.mansr.com>
On 29.03.2009 13:22 Måns Rullgård wrote:
> Consider this scenario:
>
> 1. Create/write/close newfile
> 2. Rename newfile to oldfile
> 3. Open/read oldfile. This must return the new contents.
> 4. System crash and reboot before delayed allocation/flush complete
> 5. Open/read oldfile. Old contents now returned.
>
> This rollback isn't obviously, to me at least, without problems of its
> own.
>
>
Having the old data in 5) is far better than having no data in 5).
next prev parent reply other threads:[~2009-03-29 12:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-29 10:43 Zero length files - an alternative approach? Graham Murray
2009-03-29 11:22 ` Måns Rullgård
2009-03-29 12:02 ` Andreas T.Auer [this message]
2009-03-29 12:10 ` Måns Rullgård
2009-03-29 13:49 ` Pavel Machek
2009-03-29 20:16 ` David Newall
2009-03-30 12:41 ` Chris Mason
2009-03-30 14:06 ` Theodore Tso
2009-03-29 16:49 ` Avi Kivity
[not found] <cl0KI-3zZ-3@gated-at.bofh.it>
[not found] ` <cl1oA-4El-9@gated-at.bofh.it>
[not found] ` <clp6o-91-17@gated-at.bofh.it>
2009-03-30 21:10 ` Bodo Eggert
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