libxlator: Change marker xattr handling interface

- Changed the implementation of marker xattr handling to take just a
  function which populates important data that is different from
  default 'gauge' values and subvolumes where the call needs to be
  wound.
- Removed duplicate code I found while reading the code and moved it to
  cluster_marker_unwind. Removed unused structure members.
- Changed dht/afr/stripe implementations to follow the new implementation
- Implemented marker xattr handling for ec.

Change-Id: Ib0c3626fe31eb7c8aae841eabb694945bf23abd4
BUG: 1200372
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/9892
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/xlators/cluster/afr/src/afr.h b/xlators/cluster/afr/src/afr.h
index 0885b582d77..de000e765ea 100644
--- a/xlators/cluster/afr/src/afr.h
+++ b/xlators/cluster/afr/src/afr.h
@@ -720,8 +720,6 @@ typedef struct _afr_local {
 
 	syncbarrier_t barrier;
 
-        struct marker_str     marker;
-
         /* extra data for fops */
         dict_t         *xdata_req;
         dict_t         *xdata_rsp;