Re: [PATCH] scsi_dh_alua: Enable STPG for unavailable ports

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On 09/19/2012 05:49 PM, Mike Christie wrote:
> On 08/24/2012 04:08 AM, Bart Van Assche wrote:
>> A quote from SPC-4: "While in the unavailable primary target port
>> asymmetric access state, the device server shall support those of
>> the following commands that it supports while in the active/optimized
>> state: [ ... ] d) SET TARGET PORT GROUPS; [ ... ]". Hence enable
>> sending STPG to a target port group that is in the unavailable state.
>>
>> Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
>> Cc: Hannes Reinecke <hare@xxxxxxx>
>> Cc: Mike Christie <michaelc@xxxxxxxxxxx>
>> Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
>> Cc: Babu Moger <babu.moger@xxxxxxxxxx>
>> Cc: <stable@xxxxxxxxxxxxxxx>
>> ---
>>  drivers/scsi/device_handler/scsi_dh_alua.c |    3 +--
>>  1 files changed, 1 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
>> index 08d80a6..a05d469 100644
>> --- a/drivers/scsi/device_handler/scsi_dh_alua.c
>> +++ b/drivers/scsi/device_handler/scsi_dh_alua.c
>> @@ -641,8 +641,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
>>  		h->state = TPGS_STATE_STANDBY;
>>  		break;
>>  	case TPGS_STATE_OFFLINE:
>> -	case TPGS_STATE_UNAVAILABLE:
>> -		/* Path unusable for unavailable/offline */
>> +		/* Path unusable */
>>  		err = SCSI_DH_DEV_OFFLINED;
>>  		break;
>>  	default:
>>
> 
> Hey, was this patch ok Hannes and James and others?
> 
> I see bb2c94a3a6ad37fe7d34f369295bcdf5387e264f was merged, but this one
> was not.
> 
> I was thinking this might have got missed because it has the same patch
> description as  bb2c94a3a6ad37fe7d34f369295bcdf5387e264f, so it is
> confusion, but they are different patches. One fixes alua_rtpg and one
> fixes alua_activate, but both are needed.
> 
Yeah, patch's okay.

Acked-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@xxxxxxx			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)


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