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Date: Sat, 2 Feb 2002 18:14:15 +0100
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From: Christoph Hellwig <hch@ns.caldera.de>
To: akpm@zip.com.au (Andrew Morton)
Cc: linux-kernel@vger.kernel.org, Ricardo Galli <gallir@uib.es>
Subject: Re: O_DIRECT fails in some kernel and FS
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In article <3C5AFE2D.95A3C02E@zip.com.au> you wrote:
>> Oliver Diedrich also told he could make work O_DIRECT with ext3 and 2.4.17.
>> 
>> Is this normal? Does it really work on 2.4.14? Or it doesn't but the kernel
>> doesn't avoid caching?
>> 
>
> ext2 is the only filesystem which has O_DIRECT support.

You forgot JFS and XFS.  Also there is a patche for NFS, but this one
requires a prototype change for ->directIO.

	Christoph

-- 
Of course it doesn't work. We've performed a software upgrade.
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