@@ -339,6 +339,13 @@ func UdevSetSyncSupport(enable bool) bool {

 	return UdevSyncSupported()

 }

+// CookieSupported returns whether the version of device-mapper supports the

+// use of cookie's in the tasks.

+// This is largely a lower level call that other functions use.

+func CookieSupported() bool {

+	return DmCookieSupported() != 0

+}

+

 // Useful helper for cleanup

 func RemoveDevice(name string) error {

 	log.Debugf("[devmapper] RemoveDevice START")

@@ -109,6 +109,7 @@ var (

 	DmUdevWait             = dmUdevWaitFct

 	DmUdevSetSyncSupport   = dmUdevSetSyncSupportFct

 	DmUdevGetSyncSupport   = dmUdevGetSyncSupportFct

+	DmCookieSupported      = dmCookieSupportedFct

 	LogWithErrnoInit       = logWithErrnoInitFct

 )

@@ -245,6 +246,10 @@ func dmUdevWaitFct(cookie uint) int {

 	return int(C.dm_udev_wait(C.uint32_t(cookie)))

 }

+func dmCookieSupportedFct() int {

+	return int(C.dm_cookie_supported())

+}

+

 func dmLogInitVerboseFct(level int) {

 	C.dm_log_init_verbose(C.int(level))

 }