OpenAFS Master Repository branch, master, updated. BP--openafs-stable-1_6_x-1756-gf722a75

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit f722a75fe21963d64217375f1f7bbb0eb14befb4
Author: Simon Wilkinson <sxw@your-file-system.com>
Date:   Wed Oct 12 09:47:14 2011 -0400

    rx: Don't clear the receive queue when out of packets
    
    We can end up discarding a receive queue that's been soft acked,
    effectively taking back soft acks we sent. Whilst the RX
    documentation says that a client can drop soft acked packets at
    will, our RX implementation assumes that if the final packet in
    a call has been soft acked, we won't clear the queue. If a client
    clears the queue in this situation, the call will hang.
    
    What *should* happen is that we should take necessary locks,
    confirm that we have not soft-acked all of the packets in a flow,
    and then discard, or, if we're just going to discard, error the
    call.
    
    Change-Id: Ic8e358b8648c1a6f0154009093468531a9e3cf74
    Reviewed-on: http://gerrit.openafs.org/5603
    Reviewed-by: Derrick Brashear <shadow@dementix.org>
    Tested-by: Derrick Brashear <shadow@dementix.org>

 src/rx/rx.c         |    5 +++--
 src/rx/rx_globals.h |    1 -
 2 files changed, 3 insertions(+), 3 deletions(-)

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