OpenAFS Master Repository branch, master, updated. openafs-devel-1_5_76-3170-ga428033

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit a428033bfe78c00dad84af9c14645723344297cf
Author: Jeffrey Altman <jaltman@your-file-system.com>
Date:   Tue Nov 27 00:35:20 2012 -0500

    Windows: PrimaryVolumeWorkerThread Garbage Collect Fcb
    
    Revert commit cecd99abd3837ef820d78fb15e450c8688b0f39b.  Failing
    to garbage collect the FCB from the ObjectInformationCB at the
    earliest opportunity opens the door to a deadlock with Trend Micro's
    anti-virus driver.  Trend Micro attempts to make a copy of the
    file data each time a CcPurgeCacheSection() is performed on the
    FCB.  If during AFSValidateEntry or AFSVerifyEntry a DirectoryCB->
    ObjectInformationCB->FCB is discovered which has a non-NULL
    SectionObjectPointers.DataSectionObject and the data version in
    the DirEnumEntryCB differs from the ObjectInformationCB, a
    CcPurgeCacheSection() call is performed while holding the
    FCB->NPFcb->Resource exclusively.  Trend Micro will deadlock the
    thread making the CcPurgeCacheSection() call when it attempts
    to open the file in one of its worker threads.
    
    Change-Id: I912f22ab3695ad8faf1edcdbf2d50ff9a76277db
    Reviewed-on: http://gerrit.openafs.org/8529
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
    Tested-by: Jeffrey Altman <jaltman@your-file-system.com>

 src/WINNT/afsrdr/kernel/lib/AFSWorker.cpp |   15 +++------------
 1 files changed, 3 insertions(+), 12 deletions(-)

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