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SubjectRe: PATCH - final (I hope) tidy up for generic_make_request interface


On Thu, 24 Aug 2000, Neil Brown wrote:
>
> - moves create_bounce out of __make_request and into
> generic_make_request, as potentially any client might use high
> memory, and ever driver needs a bounce buffer.

This is wrong.

Not every driver necessarily needs a bounce buffer. Yes, _currently_ they
do, but there are 64-bit PCI cards that could do DMA directly to high
memory. The part of your change would make such a driver unable to take
advantage of the resources offered by the hardware.

Linus

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