+++ This bug was initially created as a clone of Bug #1312816 +++

Description of problem:
    Afr does dict_ref of the xattr_req that comes to it and deletes "gfid-req" key.
    Dht uses same dict to send lookup to other subvolumes. So in case of
    directories and more than 1 dht subvolumes, second subvolume till the last
    subvolume won't get a lookup request with "gfid-req". So gfid reset never
    happens on the directories in distributed replicate subvolume for 2nd till last
    subvolumes.


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


How reproducible:


Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info:

--- Additional comment from Vijay Bellur on 2016-02-29 05:26:17 EST ---

REVIEW: http://review.gluster.org/13545 (cluster/afr: Don't delete gfid-req from lookup request) posted (#1) for review on master by Pranith Kumar Karampuri (pkarampu)

--- Additional comment from Vijay Bellur on 2016-03-01 03:58:38 EST ---

REVIEW: http://review.gluster.org/13545 (cluster/afr: Don't delete gfid-req from lookup request) posted (#2) for review on master by Pranith Kumar Karampuri (pkarampu)

--- Additional comment from Vijay Bellur on 2016-03-01 21:36:25 EST ---

REVIEW: http://review.gluster.org/13545 (cluster/afr: Don't delete gfid-req from lookup request) posted (#3) for review on master by Pranith Kumar Karampuri (pkarampu)

--- Additional comment from Vijay Bellur on 2016-03-02 03:55:01 EST ---

COMMIT: http://review.gluster.org/13545 committed in master by Pranith Kumar Karampuri (pkarampu) 
------
commit 9b022c3a3f2f774904b5b458ae065425b46cc15d
Author: Pranith Kumar K <pkarampu>
Date:   Sat Feb 27 23:08:06 2016 +0530

    cluster/afr: Don't delete gfid-req from lookup request
    
    Problem:
    Afr does dict_ref of the xattr_req that comes to it and deletes "gfid-req" key.
    Dht uses same dict to send lookup to other subvolumes. So in case of
    directories and more than 1 dht subvolumes, second subvolume till the last
    subvolume won't get a lookup request with "gfid-req". So gfid reset never
    happens on the directories in distributed replicate subvolume for 2nd till last
    subvolumes.
    
    Fix:
    Make a copy of lookup xattr request.
    
    Also fixed replies_wipe possibly resetting gfid to NULL gfid
    
    BUG: 1312816
    Change-Id: Ic16260e5a4664837d069c1dc05b9e96ca05bda88
    Signed-off-by: Pranith Kumar K <pkarampu>
    Reviewed-on: http://review.gluster.org/13545
    Smoke: Gluster Build System <jenkins.com>
    NetBSD-regression: NetBSD Build System <jenkins.org>
    CentOS-regression: Gluster Build System <jenkins.com>
    Reviewed-by: Krutika Dhananjay <kdhananj>