Subject: Re: [Fwd: [linux-audio-dev] info point on linux hdr]
From: Stephen C. Tweedie (sct_AT_redhat.com)
Date: Sat Apr 15 2000 - 21:21:45 EEST
Hi,
On Sat, Apr 15, 2000 at 06:50:48PM +0200, Benno Senoner wrote:
>
> Anyway does anyone know if implementing O_DIRECT would be a big amount
> of work in kernel 2.3.x ?
I'll be doing it, and it should be fairly straightforward. There are
one or two infrastructure changes required, however, so it won't make
it into 2.4 I expect.
> Is the O_DIRECT handling a filesystem issue or a block device driver issue.
No, it's a page cache issue. Most filesystems will be able to use
common page cache code for O_DIRECT.
> Do you know if XFS for Linux will support this (if the O_DIRECT is a filesystem
> issue, otherwise ignore this question) ?
Count on it, as XFS is highly oriented towards high-performance
I/O.
--Stephen
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