OpenAFS Master Repository branch, openafs-devel-1_7_x, updated. openafs-devel-1_7_9-2-g8bd8ce5

[Gerrit Code Review]

The following commit has been merged in the openafs-devel-1_7_x branch:
commit bbc85a68b027ae0901a1702873a6d8e1abf94721
Author: Jeffrey Altman <jaltman@your-file-system.com>
Date:   Mon Apr 9 18:41:13 2012 -0400

    Windows: Refactor AFSValidateEntry
    
    Refactor AFSValidateEntry to avoid obtaining the
    ObjectInformation->Fcb->Resource when it isn't necessary.
    This will avoid contention and improve performance.
    
    The only time that the Fcb->Resource is required is when
    the object requires verification, the object is a FILE,
    and the object was successfully evaluated.
    
    Even with this reorganization there is a small window
    of opportunity for a deadlock to occur if a CcPurgeCacheSection()
    which is called with the Fcb->Resource held triggers a filter
    driver to issue a CreateFile and in between the two operations
    an invalidate object is received.
    
    Reviewed-on: http://gerrit.openafs.org/7143
    Reviewed-by: Derrick Brashear <shadow@dementix.org>
    Tested-by: Derrick Brashear <shadow@dementix.org>
    Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>
    Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
    (cherry picked from commit 779c27bf1daaf01c79c0bb7c687781151abb4383)
    
    Change-Id: I401167eea36f946f61cb9af6aafaa8f4bcc817a9
    Reviewed-on: http://gerrit.openafs.org/7149
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>

 src/WINNT/afsrdr/kernel/lib/AFSCreate.cpp  |    2 -
 src/WINNT/afsrdr/kernel/lib/AFSGeneric.cpp |  171 +++++++++++++---------------
 2 files changed, 80 insertions(+), 93 deletions(-)

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OpenAFS Master Repository