post non-blocking recv before processing callbacks - as callback

could block - waiting for a gpr subscription

This commit was SVN r5361.

src/mca/gpr/replica/communications/gpr_replica_recv_proxy_msgs.c

@@ -62,15 +62,14 @@ void orte_gpr_replica_recv(int status, orte_process_name_t* sender,
 	    ompi_output(0, "gpr replica: msg processing complete - processing callbacks");
 	}
 
+    /* reissue the non-blocking receive before processing callbacks */
+    orte_rml.recv_buffer_nb(ORTE_RML_NAME_ANY, ORTE_RML_TAG_GPR, 0, orte_gpr_replica_recv, NULL);
+
     /* be sure to process callbacks before returning */
     if (ORTE_SUCCESS != (rc = orte_gpr_replica_process_callbacks())) {
         ORTE_ERROR_LOG(rc);
     }
     
     OMPI_THREAD_UNLOCK(&orte_gpr_replica_globals.mutex);
-
-    /* reissue the non-blocking receive */
-    orte_rml.recv_buffer_nb(ORTE_RML_NAME_ANY, ORTE_RML_TAG_GPR, 0, orte_gpr_replica_recv, NULL);
-
     return;
 }