Bug 1146413

+++ This bug was initially created as a clone of Bug #1122443 +++
+++                                                           +++
+++ This bug is used for backporting the change to 3.6.0.     +++
+++                                                           +++

Description of problem:

When migrating approx 1 GB of data data by doing 

  gluster volume add-brick test new-host1:/path/to/new/brick ...
  gluster volume remove-brick old-host1:/path/to/old/brick ... start
  ... wait for removal to finish
  gluster volume remove-brick old-host1:/path/to/old/brick ... commit

on a 3*4 -> 6*4 -> 3*4 gluster [version  3.7dev-0.9.git5b8de97] approximately
40% of the symlinks change their mtime to the time they were copied. 


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

3.7dev-0.9.git5b8de97

How reproducible:

Unknown (once so far), will try to come up with a reproducible (and hopefully smaller) test case.

--- Additional comment from Anand Avati on 2014-07-29 17:15:30 CEST ---

REVIEW: http://review.gluster.org/8383 (Symlink mtime changes when rebalancing) posted (#1) for review on master by Anders Blomdell (anders.blomdell.se)

--- Additional comment from Anand Avati on 2014-07-29 18:47:54 CEST ---

REVIEW: http://review.gluster.org/8383 (Symlink mtime changes when rebalancing) posted (#2) for review on master by Anders Blomdell (anders.blomdell.se)

--- Additional comment from Anand Avati on 2014-07-29 19:12:55 CEST ---

REVIEW: http://review.gluster.org/8383 (Symlink mtime changes when rebalancing) posted (#3) for review on master by Anders Blomdell (anders.blomdell.se)

--- Additional comment from Anand Avati on 2014-07-30 12:30:38 CEST ---

REVIEW: http://review.gluster.org/8383 (Symlink mtime changes when rebalancing) posted (#4) for review on master by Anders Blomdell (anders.blomdell.se)

--- Additional comment from Anand Avati on 2014-07-31 18:08:06 CEST ---

COMMIT: http://review.gluster.org/8383 committed in master by Anand Avati (avati) 
------
commit a278c2aecedfbe17e2749109d73b292ca25ff439
Author: Anders Blomdell <anders.blomdell.se>
Date:   Tue Jul 29 17:11:20 2014 +0200

    Symlink mtime changes when rebalancing
    
    Added mtime preservation for special files during rebalance.
    
    Change-Id: If04921d4d66853fde8b4d8a3ab748790864f8f42
    BUG: 1122443
    Signed-off-by: Anders Blomdell <anders.blomdell.se>
    Reviewed-on: http://review.gluster.org/8383
    Tested-by: Gluster Build System <jenkins.com>
    Reviewed-by: Shyamsundar Ranganathan <srangana>
    Reviewed-by: Harshavardhana <harsha>
    Reviewed-by: Anand Avati <avati>