---
 multipath/multipath.8 |   11 +++++++++++
 1 file changed, 11 insertions(+)

Index: multipath-tools-130222/multipath/multipath.8
===================================================================
--- multipath-tools-130222.orig/multipath/multipath.8
+++ multipath-tools-130222/multipath/multipath.8
@@ -83,6 +83,17 @@ remove the wwid for the specified device
 .B \-W
 reset the wwids file to only include the current multipath devices
 .TP
+.B \-T "tm:valid"
+check if
+.I tm
+matches the multipathd configuration timestamp value from
+.I "/run/multipathd/timestamp"
+If so, return success if
+.I valid
+is 1. Otherwise, return failure. If the timestamp doesn't match continue
+with multipath execution.  This option is designed to be used with -c by
+the udev rules.
+.TP
 .BI \-p " policy"
 force new maps to use the specified policy:
 .RS 1.2i