Re: [Fwd: [linux-audio-dev] info point on linux hdr]

[Stephen C. Tweedie]

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