geo-rep: Handle hardlink in Tiering based volume

Problem:
Hardlinks are synced as Sticky bit files to Slave in
a Tiering based volume.
In a Tiering based volume, cold tier is hashed subvolume
and geo-rep captures all namespace operations in cold tier.

While syncing a file and its corresponding hardlink, it is
recorded as MKNOD in cold tier(for both) and
We end up creating two different files in Slave.

Solution:
If MKNOD with Sticky bit set is present, record it as LINK.
This way it will create a HARDLINK if source file exists (on slave),
else it will create a new file.

This way, Slave can create Hardlink file itself (instead
of creating a new file) in case of hardlink.

Change-Id: Ic50dc6e64df9ed01799c30539a33daace0abe6d4
BUG: 1302979
Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com>
Signed-off-by: Aravinda VK <avishwan@redhat.com>
Reviewed-on: http://review.gluster.org/13281
Reviewed-on: http://review.gluster.org/13315
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>

0 files changed, 0 insertions, 0 deletions