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    SubjectRe: locking user memory and kiobuf
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    > 1. From what I've read in the archives, it seems that locking user
    > memory from a driver isn't supported in current releases of the Linux
    > kernel (2.2.xx). Is that correct?

    Indeed, but mapping kernel provided pages into a user app is.

    > 2. As I understand, there's a new "kiobuf mechanism" being added in
    > 2.3.xx .
    > Does that provide a solution to this particular issue?

    It provides the basis. A patch providing this functionality is available
    as a 2.2 add on and is in 2.2. ac

    > 3. Alternatively, can I directly manipulate the PG_locked flag for the
    > pages in question?

    Unknown. 8)


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