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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