marker: don't account destination linkto-file during internal migration

During a DHT re-balance operation, quota accounts for the destination.
Problem of accounting this destination file are:
1) Migration is an internal operation, 'quota list' shows more usage on the CLI
   and this will come to the normal numbers once the migration is complete
2) If the usage is close to the limit set, then we can get 'Disk Quota
   Exceeded' errors in the I/O path during file migration

Solution is we should not account of the usage on the destination file
during migration, at the end of the migration. We need to reduce size of
the source directory and accounting for the migrated dest file

We assume that there are sufficent disk space in the back-end. DHT
migrator should make sure that there are sufficient disk space before it
starts the migration process.

Change-Id: Ie3cfe3e4ab5241c2a127ba0edc599a053d30c3a0
BUG: 1260545
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/12113
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/xlators/features/marker/src/marker.h b/xlators/features/marker/src/marker.h
index 228fd6fa5d8..650acd84d1b 100644
--- a/xlators/features/marker/src/marker.h
+++ b/xlators/features/marker/src/marker.h
@@ -96,6 +96,7 @@ struct marker_local{
         gid_t           gid;
         int32_t         ref;
         int32_t         ia_nlink;
+        struct iatt     buf;
         gf_lock_t       lock;
         mode_t          mode;
         int32_t         err;