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From: Mikhail Teterin <mi+mx@aldan.algebra.com>
Organization: Virtual Estates, Inc.
To: freebsd-fs@FreeBSD.org, Julian Elischer <julian@elischer.org>,
	Don Lewis <truckman@FreeBSD.org>, Nikita@Namesys.COM
Date: Tue, 18 May 2004 19:31:59 -0400
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cc: lioux@FreeBSD.org
Subject: Re: QMail and SoftUpdates
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=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?

	-mi