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authorMike Anderson <andmike@linux.vnet.ibm.com>2008-08-12 12:11:57 -0700
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-08-29 09:13:51 -0500
commitc7dbb627a2505f42b2e6b3581f3716d73453dd0c (patch)
tree15e1f8f906a9221b13c66b37ea2963e29b2bd888 /drivers/scsi/device_handler
parent025270f0eaa2def673747ed6f77cca41f694f354 (diff)
downloadlinux-c7dbb627a2505f42b2e6b3581f3716d73453dd0c.tar.gz
[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>
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c12
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c4
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c4
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 994da56fffed..708e475896b9 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 b9d23e9e9a44..ef693e8412e9 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 2dee69da35cf..6e2f130d56de 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 */