From: Jan Höppner <[email protected]>
commit dd45483981ac62f432e073fea6e5e11200b9070d upstream.
It is possible that the CCW commands for reading volume and extent pool
information are not supported, either by the storage server (for
dedicated DASDs) or by z/VM (for virtual devices, such as MDISKs).
As a command reject will occur in such a case, the current error
handling leads to a failing online processing and thus the DASD can't be
used at all.
Since the data being read is not essential for an fully operational
DASD, the error handling can be removed. Information about the failing
command is sent to the s390dbf debug feature.
Fixes: c729696bcf8b ("s390/dasd: Recognise data for ESE volumes")
Cc: <[email protected]> # 5.3
Reported-by: Frank Heimes <[email protected]>
Signed-off-by: Jan Höppner <[email protected]>
Signed-off-by: Stefan Haberland <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/s390/block/dasd_eckd.c | 24 ++++++++----------------
1 file changed, 8 insertions(+), 16 deletions(-)
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1553,8 +1553,8 @@ static int dasd_eckd_read_vol_info(struc
if (rc == 0) {
memcpy(&private->vsq, vsq, sizeof(*vsq));
} else {
- dev_warn(&device->cdev->dev,
- "Reading the volume storage information failed with
rc=%d\n", rc);
+ DBF_EVENT_DEVID(DBF_WARNING, device->cdev,
+ "Reading the volume storage information failed
with rc=%d", rc);
}
if (useglobal)
@@ -1737,8 +1737,8 @@ static int dasd_eckd_read_ext_pool_info(
if (rc == 0) {
dasd_eckd_cpy_ext_pool_data(device, lcq);
} else {
- dev_warn(&device->cdev->dev,
- "Reading the logical configuration failed with
rc=%d\n", rc);
+ DBF_EVENT_DEVID(DBF_WARNING, device->cdev,
+ "Reading the logical configuration failed with
rc=%d", rc);
}
dasd_sfree_request(cqr, cqr->memdev);
@@ -2020,14 +2020,10 @@ dasd_eckd_check_characteristics(struct d
dasd_eckd_read_features(device);
/* Read Volume Information */
- rc = dasd_eckd_read_vol_info(device);
- if (rc)
- goto out_err3;
+ dasd_eckd_read_vol_info(device);
/* Read Extent Pool Information */
- rc = dasd_eckd_read_ext_pool_info(device);
- if (rc)
- goto out_err3;
+ dasd_eckd_read_ext_pool_info(device);
/* Read Device Characteristics */
rc = dasd_generic_read_dev_chars(device, DASD_ECKD_MAGIC,
@@ -5663,14 +5659,10 @@ static int dasd_eckd_restore_device(stru
dasd_eckd_read_features(device);
/* Read Volume Information */
- rc = dasd_eckd_read_vol_info(device);
- if (rc)
- goto out_err2;
+ dasd_eckd_read_vol_info(device);
/* Read Extent Pool Information */
- rc = dasd_eckd_read_ext_pool_info(device);
- if (rc)
- goto out_err2;
+ dasd_eckd_read_ext_pool_info(device);
/* Read Device Characteristics */
rc = dasd_generic_read_dev_chars(device, DASD_ECKD_MAGIC,
