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    SubjectRe: [patch] zero-bounce highmem I/O
       From: Jens Axboe <>
    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?

    David S. Miller
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