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    SubjectRe: mmaping a kernel buffer to user space
    Guillermo Marcus wrote:
    > Hi Jiri,
    > The fact that it does not works with RAM is well documented in LDD3,
    > pages 430++. It says (and I tested) that remap_xxx_range does not work
    > in this case. They suggest a method using nopage, similar to the one I
    > implement.

    Could somebody confirm, that this still holds?

    > I do not see why remap_xxx_range has the limitation, but it is there.
    > The question is then: can the limitation be removed, or can we implement
    > a new function that maps RAM all at once without the need for a nopage
    > implementation?
    > In any case, here is the code.

    Hmm, interesting. I used remap_pfn_range for this purpose today and it worked (I
    double-checked this). I should probably do the rework :(.

    -- Jiri Slaby
    faculty of informatics, masaryk university, brno, cz
    e-mail: jirislaby gmail com, gpg pubkey fingerprint:
    B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
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      Last update: 2006-10-31 17:53    [W:0.023 / U:13.340 seconds]
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