Re: 2.5 'what to expect'

Rob van Nieuwkerk (
Mon, 14 Jul 2003 02:03:24 +0200

On Sun, Jul 13, 2003 at 08:51:18AM -0700, Andreas Dilger wrote:
> ext3 in 2.4 kernels does not support O_DIRECT. To confuse matters,
> recent RH kernels silently ignore O_DIRECT if you are not root, so
> you may think O_DIRECT is being used, but it isn't.

Modern RH kernels also ignore O_DIRECT if you are root: O_DIRECT is
completely disabled/ignored.

I suspect it is because gcc-3.2.2-5 (in RH9) does not compile 2.4
O_DIRECT correctly ..

Rob van Nieuwkerk
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