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    SubjectRe: POLLRDONCE optimisation for epoll users (was: epoll and half closed TCP connections)
    On Mon, 14 Jul 2003, Jamie Lokier wrote:

    > Davide Libenzi wrote:
    > > Where this will break by using a POLLRDHUP ?
    >
    > It will break if
    >
    > (a) fd isn't a socket
    > (b) fd isn't a TCP socket
    > (c) kernel version <= 2.5.75
    > (d) SO_RCVLOWAT < s
    > (e) there is urgent data with OOBINLINE (I think)

    Jamie, did you smoke that stuff again ? :)
    With Eric patch in the proper places it is just fine. You just make
    f_op->poll() to report the extra flag other that POLLIN. What's the problem ?



    - Davide

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