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Subject: Re: Using O_DIRECT for file writing in a kernel module
From: Arjan van de Ven <arjan@infradead.org>
To: "Hanson, Jonathan M" <jonathan.m.hanson@intel.com>
Cc: linux-kernel@vger.kernel.org
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Date: Fri, 11 Feb 2005 22:32:44 -0500
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On Fri, 2005-02-11 at 17:58 -0700, Hanson, Jonathan M wrote:
> 	I'm trying to write to a file with the O_DIRECT flag from a
> kernel module in a 2.4 series of kernel on x86 hardware. I've learned
> that the O_DIRECT flag requires that the amount of data written and the
> file offset pointer must be multiples of the underlying "block size."


ehhh why are you writing to a file from a kernel module? That's
generally considered a really bad idea....