• Paul Durrant's avatar
    xenbus: limit when state is forced to closed · 672b7763
    Paul Durrant authored
    If a driver probe() fails then leave the xenstore state alone. There is no
    reason to modify it as the failure may be due to transient resource
    allocation issues and hence a subsequent probe() may succeed.
    
    If the driver supports re-binding then only force state to closed during
    remove() only in the case when the toolstack may need to clean up. This can
    be detected by checking whether the state in xenstore has been set to
    closing prior to device removal.
    
    NOTE: Re-bind support is indicated by new boolean in struct xenbus_driver,
          which defaults to false. Subsequent patches will add support to
          some backend drivers.
    Signed-off-by: default avatarPaul Durrant <pdurrant@amazon.com>
    Reviewed-by: default avatarJuergen Gross <jgross@suse.com>
    Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
    672b7763
xenbus.h 8.23 KB