Commit 4d086f6b authored Jan 30, 2009 by Ilgu Hong Committed by James Bottomley Mar 12, 2009

[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: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

parent 49baef0a

drivers/scsi/device_handler/scsi_dh_alua.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -461,6 +461,15 @@ static int alua_check_sense(struct scsi_device *sdev,
		*/
		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;
		}

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