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Description of problem:
For RHEL6 to continue to be relevant in the pNFS world, certain features needed to be backported. The support of LAYOUTRETURNs is one of those features. It has the potential of allowing the client to support multiple layout types.    

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

This request was evaluated by Red Hat Product Management for
inclusion in a Red Hat Enterprise Linux release.  Product
Management has requested further review of this request by
Red Hat Engineering, for potential inclusion in a Red Hat
Enterprise Linux release for currently deployed products.
This request is not yet committed for inclusion in a release.

pnfs regression test is needed, and only file layout is not enough, block or object layout is needed to test.

Patch(es) available on kernel-2.6.32-288.el6

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-0496.html