From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Weimer <fw@deneb.enyo.de>
Subject: Re: [rfc] fsync_range?
Date: Thu, 22 Jan 2009 22:18:22 +0100
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Cc: Jamie Lokier <jamie@shareable.org>, Nick Piggin <npiggin@suse.de>,
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* Theodore Tso:

> Actually, I take that back; Oracle (and most other enterprise
> databases; the world is not just Oracle --- there's also DB2, for
> example) generally uses Direct I/O, so I wonder if they are using
> sync_file_range() at all.

Recent PostgreSQL might use it because it has got a single-threaded
background writer which benefits from non-blocking fsync().  I'll have
to check to be sure, though.