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SubjectRe: Worrisome IDE PIO transfers...
Date
On Sunday 29 of February 2004 01:58, Jeff Garzik wrote:

> > I like Alan's idea to use loopback instead of "bswap".
>
> Neat but no more zerocopy that way. I much prefer a swap-as-you-go...

Okay, better solution:

- on Atari/Q40:
if drive->bswap use insw/outsw instead of swapping variants

- on others:
use device mapper as suggested by Matt Mackall
(no extra copying and you can use DMA to read disk from TiVo!)

Bartlomiej

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