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SubjectRe: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait /notify + callback chains

On Fri, Feb 02, 2001 at 12:51:35PM +0100, Christoph Hellwig wrote:
> >
> > If I have a page vector with a single offset/length pair, I can build
> > a new header with the same vector and modified offset/length to split
> > the vector in two without copying it.
> You just say in the higher-level structure ignore from x to y even if
> they have an offset in their own vector.

Exactly --- and so you end up with something _much_ uglier, because
you end up with all sorts of combinations of length/offset fields all
over the place.

This is _precisely_ the mess I want to avoid.

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