[fedora-virt] [PATCH] Give a nicer message if retune is called while ksmtuned is off

[Dan Kenigsberg]

---
 ksmtuned.init |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/ksmtuned.init b/ksmtuned.init
index e055785..5cd6090 100644
--- a/ksmtuned.init
+++ b/ksmtuned.init
@@ -77,8 +77,14 @@ case "$1" in
    condrestart
    ;;
   retune)
-        kill -SIGUSR1 `cat ${pidfile}`
+        pid=`cat ${pidfile} 2> /dev/null`
         RETVAL=$?
+        if [ -z "$pid" ]; then
+	    echo $"Cannot retune, service is not running."
+	else
+            kill -SIGUSR1 $pid
+            RETVAL=$?
+	fi
         ;;
   *)
    echo $"Usage: $prog {start|stop|restart|force-reload|condrestart|try-restart|status|retune|help}"