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Bobi Jam authored
* obd_fid_alloc() could possibly start a nested transaction, which
  would reset the OI cache. So we add a
  osd_thread_info::oti_ins_cache_depth to prevent clearing OI cache
  in the nested trnasaction.

* Add more debug mesages in osd_idc_find_or_init()/
  osd_idc_find_and_init()

Test-Parameters: alwaysuploadlogs envdefinitions=PTLDEBUG=-1 testlist=sanity-pfl ostfilesystemtype=zfs mdtfilesystemtype=zfs mdscount=2 mdtcount=4
Signed-off-by: default avatarBobi Jam <bobijam.xu@intel.com>
Change-Id: Id75fd1787ffc0f47bbf110d460f23db6c34670da
Reviewed-on: https://review.whamcloud.com/31268


Reviewed-by: default avatarFan Yong <fan.yong@intel.com>
Tested-by: Jenkins
Tested-by: default avatarMaloo <hpdd-maloo@intel.com>
Reviewed-by: default avatarAlex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
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Instructions for building, configuring and running Lustre:
    https://wiki.hpdd.intel.com/display/PUB/Building+Lustre+from+Source
and
    https://wiki.hpdd.intel.com/display/PUB/Getting+started+with+Lustre.

Instructions for contributing patches for Lustre:
    https://wiki.hpdd.intel.com/display/PUB/Submitting+Changes
and
    https://wiki.hpdd.intel.com/display/PUB/Using+Gerrit

The Lustre Coding Style Guidelines can be found at:
    https://wiki.hpdd.intel.com/display/PUB/Coding+Guidelines

The Lustre Test Script Style Guidelines can be found at:
    https://wiki.hpdd.intel.com/display/PUB/Test+Coding+Style

In order to improve the quality of patches submitted to the Lustre tree,
it is possible to automatically check every patch and commit against the
Lustre Coding Guidelines.  To do this, run in the top-level lustre/ tree:

    cd .git/hooks
    ln -s ../../contrib/git-hooks/{prepare-,}commit-msg ./
    cd ../..