}
restart () {
- # OVS_RESTART_SAVE_FLOWS can be set by package postinst script.
- if [ "$OVS_RESTART_SAVE_FLOWS" = "yes" ] || \
- [ "$1" = "--save-flows=yes" ]; then
+ # OVS_FORCE_RELOAD_KMOD can be set by package postinst script.
+ if [ "$1" = "--save-flows=yes" ] || \
+ [ "${OVS_FORCE_RELOAD_KMOD}" = "no" ]; then
start restart
+ elif [ "${OVS_FORCE_RELOAD_KMOD}" = "yes" ]; then
+ depmod -a
+
+ if [ -e /sys/module/openvswitch ]; then
+ LOADED_SRCVERSION=`cat /sys/module/openvswitch/srcversion`
+ LOADED_VERSION=`cat /sys/module/openvswitch/version`
+ elif [ -e /sys/module/openvswitch_mod ]; then
+ LOADED_SRCVERSION=`cat /sys/module/openvswitch_mod/srcversion`
+ LOADED_VERSION=`cat /sys/module/openvswitch_mod/version`
+ fi
+ SRCVERSION=`modinfo -F srcversion openvswitch 2>/dev/null`
+ VERSION=`modinfo -F version openvswitch 2>/dev/null`
+
+ ovs_ctl_log "Package upgrading:\n"\
+ "Loaded version: ${LOADED_VERSION} ${LOADED_SRCVERSION}.\n"\
+ "Version on disk: ${VERSION} ${SRCVERSION}."
+
+ # If the kernel module was previously loaded and it is different than
+ # the kernel module on disk, then do a 'force-reload-kmod'.
+ if [ -n "${LOADED_SRCVERSION}" ] && [ -n "${SRCVERSION}" ] && \
+ [ "${SRCVERSION}" != "${LOADED_SRCVERSION}" ]; then
+ start force-reload-kmod
+ else
+ start restart
+ fi
else
stop
start
OVS_MISSING_KMOD_OK=yes
export OVS_MISSING_KMOD_OK
-# Save and restore openflow flows during a package upgrade.
-OVS_RESTART_SAVE_FLOWS=yes
-export OVS_RESTART_SAVE_FLOWS
+# force-reload-kmod during upgrade. If a user wants to override this,
+# they can set the variable OVS_FORCE_RELOAD_KMOD=no while installing.
+[ -z "${OVS_FORCE_RELOAD_KMOD}" ] && OVS_FORCE_RELOAD_KMOD=yes || true
+export OVS_FORCE_RELOAD_KMOD
#DEBHELPER#