OpenAFS Master Repository branch, master, updated. openafs-devel-1_5_76-3646-gd3c0432

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit cda4f6c3ff92a35e2ff8b2eb114729144fff165f
Author: Jeffrey Altman <jaltman@your-file-system.com>
Date:   Wed Mar 20 10:04:41 2013 -0400

    Windows: buf_CleanVnode avoid lock contention
    
    In the middle of the big loop do not obtain buf_globalLock unless
    cm_buf.qFlags & CM_BUF_QREDIR is non-zero.  buf_globalLock is heavily
    contested and any reduction in contention is an improvement.
    CM_BUF_QREDIR is never set when 'cm_directIO' is true (now the default)
    so this is a huge win.
    
    Change-Id: I0b150bf77a0f1d748f94026d3b74bc7d90e7c3c6
    Reviewed-on: http://gerrit.openafs.org/9636
    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/afsd/cm_buf.c |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)

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