From 8ebb29c9e5127a5523b16389e5f02289403690b4 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Mon, 9 Feb 2015 04:26:46 +0100
Subject: Save old vshelper during start and restore it during stop.

---
 util-vserver-netns | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/util-vserver-netns b/util-vserver-netns
index 6e1a04a..5e5b287 100755
--- a/util-vserver-netns
+++ b/util-vserver-netns
@@ -26,8 +26,16 @@ LOCKFILE=util-vserver-netns
 function start()
 {
     _beginResult $"Setting path to vshelper"
-    set_helper
-    local retval=$?
+
+    local retval
+    if test -r /proc/sys/kernel/vshelper; then
+        cat /proc/sys/kernel/vshelper > "$lockfile.save"
+        set_helper
+        retval=$?
+    else
+        retval=1
+    fi
+
     _endResult $retval
     test "$retval" -ne 0 || touch "$lockfile"
     return $retval
@@ -35,6 +43,11 @@ function start()
 
 function stop()
 {
+    if test -r "$lockfile.save"; then
+        cat "$lockfile.save" > /proc/sys/kernel/vshelper
+        $_RM -f "$lockfile.save"
+    fi
+
     $_RM -f "$lockfile"
 }
 
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