diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index ab93b6eae696..93c2235349a0 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -42,6 +42,11 @@ struct rw_semaphore {
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lockdep_map	dep_map;
 #endif
+        /* NOTICE: m_count is a vendor variable used for the config
+         * CONFIG_RWSEM_PRIO_AWARE. This is included here to maintain ABI
+         * compatibility with our vendors */
+        /* count for waiters preempt to queue in wait list */
+	long m_count;
 };
 
 /*