PATCH; make iscsi login code wait for udev to create the devices (#466661, #470073)

[Hans de Goede <hdegoede redhat com>]

Hi All,

This patch fixes #466661, #470073, please review.

Regards,

Hans

diff --git a/iscsi.py b/iscsi.py
index a42a03e..915e9ca 100644
--- a/iscsi.py
+++ b/iscsi.py
@@ -189,6 +189,11 @@ class iscsiTarget:
                 ret = True
                 self.addNode(node)
 
+        # Wait for udev to create the devices for the just added disks
+        if ret:
+            iutil.execWithRedirect("/sbin/udevsettle", [ ], 
+                                   stdout = "/dev/tty5", stderr="/dev/tty5")
+
         # we return True if there were any successful logins for our portal.
         return ret