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Message-id: <467B6168.6090508@parvan.net>
Date: Thu, 21 Jun 2007 22:43:04 -0700
From: Reza Roboubi <reza@...van.net>
To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: O_DIRECT, fdatasync_area, mwrite
Reza Roboubi wrote:
> Linus Torvalds:
> > I suspect that this is about a few hundred lines of code (and a lot of
> > testing). And you can emulate O_DIRECT behavior with it, along with
> > splice (only for page-cache entities, though), and a lot of other
> > off-by-one uses.
> ( http://lwn.net/2002/0516/a/lt-async.php3 )
>
> I have often read this message and wondered why no one has implemented
> it yet. We would love to have such clean features instead of O_DIRECT.
> At this very moment it's a bit hard for us to do this(given a
> prerequisites learning curve amongst other factors.) We may at some
> point do it and I'd love to contribute. What _are_ the issues with it,
> and is there a technical reason it hasn't been implemented yet by anybody?
>
> Further, is O_DIRECT to raw partition also unclean?
I know the top guys are very busy; but I'd appreciate just a brief
comment on the present situation.
Reza.
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