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SubjectRe: fcntl(2) and other file systems like XFS

On Tue, Mar 21, 2000 at 02:25:34PM -0500, Jeff Garzik wrote:
> > permitted on O_NONE file handles.
> On a similar subject, how feasible is it to implement O_DIRECT?

For block devices, it is easy --- I've already done it (it was part of
a previous raw IO patch which never made it into the mainstream). For
regular files, it will be part of the 2.5 kiobuf infrastructure: I've
already been talking with Ingo about how to do it so that it plays
cleanly with the page cache.


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