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| author | Moger, Babu <Babu.Moger@netapp.com> | 2011-10-06 13:22:07 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-16 10:57:27 -0500 |
| commit | bf81973a5d907ca1226e295ef67f650b8f4e9b4c (patch) | |
| tree | 57f80e1a9a23a6630a1b3f3c642aaaad60307bef /drivers/scsi/device_handler/scsi_dh_alua.c | |
| parent | 14ed9cc7e7b9a95d56c2bf91cab2f010968d6e73 (diff) | |
| download | linux-bf81973a5d907ca1226e295ef67f650b8f4e9b4c.tar.gz linux-bf81973a5d907ca1226e295ef67f650b8f4e9b4c.tar.bz2 linux-bf81973a5d907ca1226e295ef67f650b8f4e9b4c.zip | |
[SCSI] scsi_dh_alua: Add one more check-condition for alua handler
This patch adds one more check-condition for scsi_dh_alua handler. Without
this, the handler attach fails sometimes during the discovery. I have noticed
this with NetApp E-Series storage with alua mode. Also removed some
unnecessary brackets {} for consistency.
Signed-off-by: Babu Moger <babu.moger@netapp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/device_handler/scsi_dh_alua.c')
| -rw-r--r-- | drivers/scsi/device_handler/scsi_dh_alua.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 9dce3670f8de..627f4b5e5176 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -465,27 +465,28 @@ static int alua_check_sense(struct scsi_device *sdev, * Power On, Reset, or Bus Device Reset, just retry. */ return ADD_TO_MLQUEUE; - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) { + if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) /* * ALUA state changed */ return ADD_TO_MLQUEUE; - } - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) { + if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) /* * Implicit ALUA state transition failed */ return ADD_TO_MLQUEUE; - } - if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x0e) { + if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x03) + /* + * Inquiry data has changed + */ + 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; } |