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[SCSI] scsi_dh_alua: Re-enable STPG for unavailable ports

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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 re-enable
sending STPG to a target port group that is in the unavailable state.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Babu Moger <babu.moger@netapp.com> 
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Bart Van Assche 2012-06-22 08:49:38 +00:00 committed by James Bottomley
parent efb6c717b7
commit bb2c94a3a6
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/device_handler/scsi_dh_alua.c
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@ -742,9 +742,9 @@ static int alua_activate(struct scsi_device *sdev,
stpg = 0;
break;
case TPGS_STATE_STANDBY:
case TPGS_STATE_UNAVAILABLE:
stpg = 1;
break;
case TPGS_STATE_UNAVAILABLE:
case TPGS_STATE_OFFLINE:
err = SCSI_DH_IO;
break;