Commit 4d086f6b authored by Ilgu Hong's avatar Ilgu Hong Committed by James Bottomley

[SCSI] scsi dh alua: handle report luns data changed in check sense callout

When we switch controllers the Intel Multi-Flex reports
REPORTED_LUNS_DATA_HAS_CHANGED. This patch just has us
retry the command.
Signed-off-by: default avatarIlgu Hong <ilgu.hong@promise.com>
Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 49baef0a
...@@ -461,6 +461,15 @@ static int alua_check_sense(struct scsi_device *sdev, ...@@ -461,6 +461,15 @@ static int alua_check_sense(struct scsi_device *sdev,
*/ */
return ADD_TO_MLQUEUE; return ADD_TO_MLQUEUE;
} }
if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x0e) {
/*
* REPORTED_LUNS_DATA_HAS_CHANGED is reported
* when switching controllers on targets like
* Intel Multi-Flex. We can just retry.
*/
return ADD_TO_MLQUEUE;
}
break; break;
} }
......
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