Commit dc62ccac authored by David Vrabel's avatar David Vrabel Committed by David S. Miller

xen-netback: transition to CLOSED when removing a VIF

If a guest is destroyed without transitioning its frontend to CLOSED,
the domain becomes a zombie as netback was not grant unmapping the
shared rings.

When removing a VIF, transition the backend to CLOSED so the VIF is
disconnected if necessary (which will unmap the shared rings etc).

This fixes a regression introduced by
279f438e (xen-netback: Don't destroy
the netdev until the vif is shut down).
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Paul Durrant <Paul.Durrant@citrix.com>
Acked-by: default avatarWei Liu <wei.liu2@citrix.com>
Reviewed-by: default avatarPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3c01352d
......@@ -39,11 +39,15 @@ static int connect_rings(struct backend_info *);
static void connect(struct backend_info *);
static void backend_create_xenvif(struct backend_info *be);
static void unregister_hotplug_status_watch(struct backend_info *be);
static void set_backend_state(struct backend_info *be,
enum xenbus_state state);
static int netback_remove(struct xenbus_device *dev)
{
struct backend_info *be = dev_get_drvdata(&dev->dev);
set_backend_state(be, XenbusStateClosed);
unregister_hotplug_status_watch(be);
if (be->vif) {
kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE);
......
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