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SubjectRe: [patch] zero-bounce highmem I/O
On Wed, Aug 15 2001, David S. Miller wrote:
> From: Jens Axboe <axboe@suse.de>
> Date: Wed, 15 Aug 2001 09:50:18 +0200
>
> Dave, comments on that?
>
> I think the new-style sg_list is slightly overkill, too much
> stuff. You need much less, in fact, especially on x86.
>
> Take include/linux/skbuff.h:skb_frag_struct, rename it to
> sg_list and add a dma_addr_t. You should need nothing else.
> The bounce page, for example, is superfluous.

Ok agreed, fine with me.

> If you bounce, the bounce page can be determined later via the
> dma_addr_t right?

That's true.

> And Dave, should I add the 64-bit stuff I started again? :-)
>
> Let me draft something up, and meanwhile you can think about
> the changes I suggest above. Ok?

Ok done from my side :)

--
Jens Axboe

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