OpenAFS Master Repository branch, master, updated. openafs-devel-1_5_76-2048-gad3c005

[Gerrit Code Review]

The following commit has been merged in the master branch:
commit ad3c00520b93174808f692ced3e35261030a8c1b
Author: Jeffrey Altman <jaltman@your-file-system.com>
Date:   Thu Dec 29 22:20:38 2011 -0500

    Windows: add DV and error status to dir enumerations
    
    The cm_BPlusDirEnum family of functions are atomic when generating
    the directory enumeration but are not atomic with respect to the
    rest of the system as the enumeration is accessed.  Therefore, the
    data version of the directory at the time the enumeration is created
    may not be the same as the directory version when the enumeration
    is fully processed.  We therefore store the initial data version in the
    cm_direnum_t object.
    
    When the enumeration is fetching status information for each of the
    directory entries, it is possible that the fetch status will fail.
    We therefore store the fetch status error code in the cm_direnum_entry_t
    object.   By doing so, the consumer of the enumeration can make a
    reasonable decision about the lack of status info.  For example,
    if the resulting error is CM_ERROR_BADFD it is known that the entry
    has been removed from the directory since the initial enumeration.
    
    Change-Id: I289881e2c59525a9f998559b00769d3ac3f335c0
    Reviewed-on: http://gerrit.openafs.org/6452
    Tested-by: BuildBot <buildbot@rampaginggeek.com>
    Reviewed-by: Jeffrey Altman <jaltman@secure-endpoints.com>
    Tested-by: Jeffrey Altman <jaltman@secure-endpoints.com>

 src/WINNT/afsd/cm_btree.c |  273 ++++++++++++++++++++++++++++++++++-----------
 src/WINNT/afsd/cm_btree.h |    2 +
 2 files changed, 208 insertions(+), 67 deletions(-)

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