• Paul Durrant's avatar
    xen-netback: Don't destroy the netdev until the vif is shut down · 279f438e
    Paul Durrant authored
    
    
    Without this patch, if a frontend cycles through states Closing
    and Closed (which Windows frontends need to do) then the netdev
    will be destroyed and requires re-invocation of hotplug scripts
    to restore state before the frontend can move to Connected. Thus
    when udev is not in use the backend gets stuck in InitWait.
    
    With this patch, the netdev is left alone whilst the backend is
    still online and is only de-registered and freed just prior to
    destroying the vif (which is also nicely symmetrical with the
    netdev allocation and registration being done during probe) so
    no re-invocation of hotplug scripts is required.
    Signed-off-by: default avatarPaul Durrant <paul.durrant@citrix.com>
    Cc: David Vrabel <david.vrabel@citrix.com>
    Cc: Wei Liu <wei.liu2@citrix.com>
    Cc: Ian Campbell <ian.campbell@citrix.com>
    Acked-by: default avatarWei Liu <wei.liu2@citrix.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    279f438e