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authorMartin George <marting@netapp.com>2011-04-26 18:27:05 +0530
committerJames Bottomley <James.Bottomley@suse.de>2011-05-01 12:05:40 -0500
commitc0d289b3e59577532c45ee9110ef81bd7b341272 (patch)
treef5297f9bc5a6fc65d6d0fc7951e70aad8914d656 /drivers/scsi/device_handler
parentcbc78ae73bcab6b3277977a6a30e74d1be3cedfa (diff)
[SCSI] scsi_dh_alua: Attach to UNAVAILABLE/OFFLINE AAS devices
The SCSI ALUA handler currently fails to attach to devices reporting an UNAVAILABLE/OFFLINE AAS. But given that an UNAVAILABLE/OFFLINE AAS can transition to other states like ACTIVE/OPTIMIZED, ACTIVE/NON-OPTIMIZED, etc. as per SPC4, this ALUA handler behavior should be rectified so as to attach to devices which also report an UNAVAILABLE/OFFLINE AAS. Signed-off-by: Martin George <marting@netapp.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 42fe52902add..6fec9fe5dc39 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -782,7 +782,7 @@ static int alua_bus_attach(struct scsi_device *sdev)
h->sdev = sdev;
err = alua_initialize(sdev, h);
- if (err != SCSI_DH_OK)
+ if ((err != SCSI_DH_OK) && (err != SCSI_DH_DEV_OFFLINED))
goto failed;
if (!try_module_get(THIS_MODULE))