[Bugs] [Bug 1428072] New: nfs: Fill in pargfid in NFS requests

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1428072

            Bug ID: 1428072
           Summary: nfs: Fill in pargfid in NFS requests
           Product: GlusterFS
           Version: mainline
         Component: core
          Assignee: bugs at gluster.org
          Reporter: vbellur at redhat.com
                CC: bugs at gluster.org



nfs: Fill in pargfid in NFS requests

Summary:
- The NFS server would occasionally send requests to the bricks which contained
  a null parent gfid and a name, even though a proper parent inode was
available.
  This caused name resolution to fail on the brick. When this occurred while
trying
  to obtain a lock on a file, it could lead to the NFS server concluding there
was
  a lack of consensus, and hence returning EROFS.
- This is a cherry-pick of D3064740 into 3.8

Signed-off-by: Shreyas Siravara <sshreyas at fb.com>

Change-Id: Iae63c1f39abe74d4101058f494d1e14fda1c1912
Reviewed-on: http://review.gluster.org/16180
Tested-by: Shreyas Siravara <sshreyas at fb.com>
NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
Smoke: Gluster Build System <jenkins at build.gluster.org>
Reviewed-by: Kevin Vigor <kvigor at fb.com>
CentOS-regression: Gluster Build System <jenkins at build.gluster.org>

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