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On 3/15/2014 3:51 AM, Hannes Reinecke wrote:
> Add a flag 'vpd_invalid' to the SCSI device to indicate that the VPD data
> needs to be refreshed. This is required if either a manual rescan is
> triggered or if the sense code INQUIRY DATA HAS CHANGED has been received.
> --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -393,6
> +393,7 @@ static void scsi_report_sense(struct scsi_device *sdev,
>
> if (sshdr->sense_key == UNIT_ATTENTION) { if (sshdr->asc == 0x3f &&
> sshdr->ascq == 0x03) { + sdev->vpd_invalid = 1;
I didn't study the whole code path but does the VPD data get updated on a
6/2900? I suspect it should be.
I can imagine a number of cases where the luns changed check condition gets
preempted/lost by a device reset. I guess much of that should be masked by the
port login/logout, but its probably better to be safe...
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