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    SubjectRe: How to map high memory for block io
    Jens Axboe wrote:
    > On Fri, Jan 27 2006, Pierre Ossman wrote:
    >
    >>
    >> If I set the limit to BLK_BOUNCE_HIGH then (page_address(sg->page) +
    >> sg->offset) is guaranteed to be directly accessible for the entire
    >> sg->length on all architectures, right? This seems to be the assumption
    >> in the USB ub driver at least.
    >>
    >
    > Yes, hence my initial suggestion to just do that.
    >
    >

    Just making sure I understood it correctly. These bugs tend to be a pain
    to debug so I'd prefer to get it right from the start. :)

    Thanks for the help.

    Rgds
    Pierre


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