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scsi: establish precedence levels for unit attention

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When a device is resized, we will report a unit attention condition
for CAPACITY DATA HAS CHANGED.  However, we should ensure that this
condition does not override a more important unit attention condition.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-07-16 14:18:58 +02:00
parent 350e6e4199
commit e48e84ea80
4 changed files with 55 additions and 3 deletions
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4
hw/scsi-disk.c
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@ -1876,7 +1876,7 @@ static void scsi_cd_change_media_cb(void *opaque, bool load)
*/
s->media_changed = load;
s->tray_open = !load;
s->qdev.unit_attention = SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM);
scsi_device_set_ua(&s->qdev, SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM));
s->media_event = true;
s->eject_request = false;
}
@ -1913,7 +1913,7 @@ static void scsi_disk_unit_attention_reported(SCSIDevice *dev)
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
if (s->media_changed) {
s->media_changed = false;
s->qdev.unit_attention = SENSE_CODE(MEDIUM_CHANGED);
scsi_device_set_ua(&s->qdev, SENSE_CODE(MEDIUM_CHANGED));
}
}