ocfs2/cluster: Track send message timing stats for each socket

Tracks total send and status times for all messages sent on a socket.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index f815763..640c6fc 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -179,6 +179,12 @@
 	ktime_t			sc_tv_func_start;
 	ktime_t			sc_tv_func_stop;
 #endif
+#ifdef CONFIG_OCFS2_FS_STATS
+	ktime_t			sc_tv_acquiry_total;
+	ktime_t			sc_tv_send_total;
+	ktime_t			sc_tv_status_total;
+	u32			sc_send_count;
+#endif
 	struct mutex		sc_send_lock;
 };