This eliminates a superfluous log message when the capacity is changed:

  "check_readiness: unexpected unit attention code=3"
Signed-off-by: NEwan D. Milne <emilne@redhat.com>
Acked-by: NDouglas Gilbert <dgilbert@interlog.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>