[SCSI] scsi_dh: make check_sense return ADD_TO_MLQUEUE

Change scsi_dh check_sense functions to return ADD_TO_MLQUEUE
to allow retries to occur without restriction of blk_noretry_request
check.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Acked-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

3 files changed, 10 insertions, 10 deletions

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 994da56fffe..708e475896b 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -425,7 +425,7 @@ static int alua_check_sense(struct scsi_device *sdev,
                         /*
                          * LUN Not Accessible - ALUA state transition
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x0b)
                         /*
                          * LUN Not Accessible -- Target port in standby state
@@ -447,18 +447,18 @@ static int alua_check_sense(struct scsi_device *sdev,
                         /*
                          * Power On, Reset, or Bus Device Reset, just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) {
                         /*
                          * ALUA state changed
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 }
                 if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) {
                         /*
                          * Implicit ALUA state transition failed
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 }
                 break;
         }
@@ -490,7 +490,7 @@ static int alua_stpg(struct scsi_device *sdev, int state,
                 if (!err)
                         return SCSI_DH_IO;
                 err = alua_check_sense(sdev, &sense_hdr);
-                if (retry > 0 && err == NEEDS_RETRY) {
+                if (retry > 0 && err == ADD_TO_MLQUEUE) {
                         retry--;
                         goto retry;
                 }
@@ -535,7 +535,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
                         return SCSI_DH_IO;
 
                 err = alua_check_sense(sdev, &sense_hdr);
-                if (err == NEEDS_RETRY)
+                if (err == ADD_TO_MLQUEUE)
                         goto retry;
                 sdev_printk(KERN_INFO, sdev,
                             "%s: rtpg sense code %02x/%02x/%02x\n",
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index b9d23e9e9a4..ef693e8412e 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -439,7 +439,7 @@ static int clariion_check_sense(struct scsi_device *sdev,
                          * Unit Attention Code. This is the first IO
                          * to the new path, so just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         }
 
@@ -514,7 +514,7 @@ retry:
                         return SCSI_DH_IO;
 
                 err = clariion_check_sense(sdev, &sshdr);
-                if (retry > 0 && err == NEEDS_RETRY) {
+                if (retry > 0 && err == ADD_TO_MLQUEUE) {
                         retry--;
                         goto retry;
                 }
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 2dee69da35c..6e2f130d56d 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -551,7 +551,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
                          *
                          * Just retry and wait.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         case ILLEGAL_REQUEST:
                 if (sense_hdr->asc == 0x94 && sense_hdr->ascq == 0x01) {
@@ -568,7 +568,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
                         /*
                          * Power On, Reset, or Bus Device Reset, just retry.
                          */
-                        return NEEDS_RETRY;
+                        return ADD_TO_MLQUEUE;
                 break;
         }
         /* success just means we do not care what scsi-ml does */