Please cherry-pick this commit for v4.7 stable:
commit 564471d2f2f1ddaf02119b8759813666db93abba
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
AuthorDate: Wed Jun 29 13:52:21 2016 -0400
Commit: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
CommitDate: Mon Jul 11 15:50:43 2016 -0400
xprtrdma: Create common scatterlist fields in rpcrdma_mw
It addresses a bug in:
commit d7a21c1bed54adcf96e1713019a6ad87e90fbbc3
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
AuthorDate: Mon May 2 14:42:12 2016 -0400
Commit: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
CommitDate: Tue May 17 15:48:02 2016 -0400
xprtrdma: Reset MRs in frwr_op_unmap_sync()
Which causes DMAR errors and an oops when using NFS/RDMA on
x86_64 systems where the iommu is enabled.
--
Chuck Lever
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