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    SubjectRe: [V9fs-developer] [PATCH 04/10] 9p: move dirread to fs layer
    On Wed, Oct 8, 2008 at 5:10 PM, Latchesar Ionkov <lucho@ionkov.net> wrote:
    > The idea of the client implementation is to be able to use it not only
    > from the vfs layer, but also without it. For example, creating a
    > device that connect to a remote 9P file server.
    >

    That does make sense in principal -- although I'm not sure filldir
    structures are the easiest things to work with either. The main idea
    was to restrict the client.c code to wire operations, primarily
    torwards the idea of treating the "client" as a proxy server once the
    in-kernel-server code goes in (hopefully in 2.6.29).
    Of course the other factor is that this patch-set is gearing up
    towards an alternate extended-POSIX-support approach (what I've been
    referring to as .L) -- that extension will include a wire operation
    which more closely matches linux's concept of dirread (just grab the
    files, not the associated stat) -- but whether or not that is useful
    will largely depend on what sort of remote server you are accessing.

    The Plan 9 dirread is one of those special cases where even though its
    not a wire operation, it needs some intimate understanding of the
    underlying protocol (at least how stats get marshalled) -- in some
    ways if it were a client operation, it might make more sense to pass
    it an array of p9_stat structs to populate with the results.

    Do you have some code which used the old client interface I could look
    at or were you just thinking towards the future?

    -eric


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