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Date: Tue, 18 May 2004 18:09:58 -0700 (PDT)
From: Julian Elischer <julian@elischer.org>
To: Mikhail Teterin <mi+mx@aldan.algebra.com>
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cc: freebsd-fs@FreeBSD.org
cc: Nikita@Namesys.COM
cc: Don Lewis <truckman@FreeBSD.org>
cc: lioux@FreeBSD.org
Subject: Re: QMail and SoftUpdates
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On Tue, 18 May 2004, Mikhail Teterin wrote:

> =On Tue, 18 May 2004, Don Lewis wrote:
> =
> => On 18 May, Julian Elischer wrote:
> => > 
> => > 
> =[...]
> =
> => > 
> => > An fsync will sync ALL directory entries pointing to the file
> => 
> => I haven't looked at how qmail works, but my suspicion is that it
> => fsync()s the file and then creates a link (and probably unlinks
> => the old name) to mark the queue file as valid and is not partially
> => written. I think this would work with softupdates if the file were
> => fsync()ed again after the link() call. I won't comment about why this
> => change is unlikely to make it into the code.
> =
> =a single fsync AFTER the link but before acking the mail would be
> =sufficient.
> 
> Should the mail/qmail port do that?

it certainly could...

> 
> 	-mi
> 
>