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    SubjectRe: [patch] rewrite rd
    Am Dienstag, 4. Dezember 2007 schrieb Nick Piggin:
    > There is one slight downside -- direct block device access and filesystem
    > metadata access goes through an extra copy and gets stored in RAM twice.
    > However, this downside is only slight, because the real buffercache of the
    > device is now reclaimable (because we're not playing crazy games with it),
    > so under memory intensive situations, footprint should effectively be the
    > same -- maybe even a slight advantage to the new driver because it can also
    > reclaim buffer heads.

    This is just an idea, I dont know if it is worth the trouble, but have you
    though about implementing direct_access for brd? That would allow
    execute-in-place (xip) on brd eliminating the extra copy.


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