Re: [patch] zero-bounce highmem I/O

[David S. Miller]

   From: Jens Axboe <[e-mail]>
   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.

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

   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?

Later,
David S. Miller
[e-mail]