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    SubjectRe: Async user space notification from kernel?
    On Thu, Aug 26, 1999 at 12:54:35PM -0400, Jeff Garzik wrote:
    > Erik Andersen wrote:
    > > Select(2) on /proc is indeed disappointing -- it does nothing
    > > useful.
    >
    > I still wonder if this is because 'read' is the only proc operation that
    > is filled in... All of the net routines share
    > 'proc_net_inode_operations'.
    >
    > Jeff

    Ok, I follow you now -- select(2) depends on certain fs file
    operations that no /proc entries currently provide. By adjusting the
    file_operations, and providing some needed magic, I could indeed use
    select on a /proc entry to get async event notification to user space.
    That would be a very elegant solution.

    Any hints as to what file_ops are needed to support select?
    Clearly read and write are not sufficient. flush? poll?

    -Erik

    --
    Erik B. Andersen Web: http://www.xmission.com/~andersen/
    email: andersee@debian.org
    --This message was written using 73% post-consumer electrons--

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