Log the ALUA state change unit attention correctly with
the message log and emit an event to allow user-space
tools to react to it.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NEwan D. Milne <emilne@redhat.com>
Reviewed-by: NBart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>