1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 0b8ee06f99c0..1b8c596b1177 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -54,6 +54,7 @@ struct svc_xprt {
         struct svc_pool         *xpt_pool;      /* current pool iff queued */
         struct svc_serv         *xpt_server;    /* service for transport */
         atomic_t                xpt_reserved;   /* space on outq that is rsvd */
+        struct mutex            xpt_mutex;      /* to serialize sending data */
 };
 
 int     svc_reg_xprt_class(struct svc_xprt_class *);