protocol: utilize the version 4 xdrv4.0.0rc0

updates #384

Change-Id: Id80bf470988dbecc69779de9eb64088559cb1f6a
Signed-off-by: Amar Tumballi <amarts@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/rpc/xdr/src/glusterfs3.h b/rpc/xdr/src/glusterfs3.h
index bbe231139b3..550b9a3ceb8 100644
--- a/rpc/xdr/src/glusterfs3.h
+++ b/rpc/xdr/src/glusterfs3.h
@@ -668,6 +668,9 @@ dict_to_xdr (dict_t *this, gfx_dict *dict)
                 goto out;
         }
 
+        /* Do the whole operation in locked region */
+        LOCK (&this->lock);
+
         dict->pairs.pairs_val = GF_CALLOC (1, (this->count *
                                                sizeof (gfx_dict_pair)),
                                            gf_common_mt_char);
@@ -756,6 +759,10 @@ dict_to_xdr (dict_t *this, gfx_dict *dict)
 
         ret = 0;
 out:
+        /* this can be null here, so unlock only if its not null */
+        if (this)
+                UNLOCK (&this->lock);
+
         return ret;
 }