Re: [PATCH] direct-IO API change

From: Linus Torvalds (torvalds@transmeta.com)
Date: Fri Oct 04 2002 - 18:44:46 EST


On Fri, 4 Oct 2002, Andrew Morton wrote:
>
> > Especially since I thought that O_DIRECT on the regular file (or block
> > device) performed about as well as raw does anyway these days? Or is that
> > just one of my LSD-induced flashbacks?
> >
>
> Now we're not holding i_sem for O_DIRECT writes to blockdevs,
> I don't think the raw driver offers any advantages at all. It's
> a compatibility thing to save people from having to add "|O_DIRECT" to
> their source and then typing `ln -s /dev/hda1 /dev/raw/raw0'.

Maybe the raw driver could become a shell that just adds the O_DIRECT?
Unless it can do something more, of course..

                Linus

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