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SubjectRe: Editing-in-place of a large file
> Sounds like a possibility for the kernel to me.  As with most things,

But you have it backwards - things are not "could go in the kernel" things
are "could avoid being in kernel"

> passed around as a target for the video device, a source for a userspace
> program, and a source for DMA to disk) They also have some special
> flags:
> fcentl(fd, F_SETFL, FDIRECT); /* enables direct disk access */
> open(filename, O_DIRECT); /* likewise */
> See this page for details:

Andrea has this working on 2.4 + patches

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