[S390] New DASD feature for ERP related logging

It is now possible to enable/disable ERP related logging without re-compile
and re-ipl. A additional sysfs-attribute 'erplog' allows to switch the
logging non-interruptive.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 2af2d9b53d18..492b68bcd7cc 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1050,10 +1050,10 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
                 }
         } else {                /* error */
                 memcpy(&cqr->irb, irb, sizeof (struct irb));
-#ifdef ERP_DEBUG
-                /* dump sense data */
-                dasd_log_sense(cqr, irb);
-#endif
+                if (device->features & DASD_FEATURE_ERPLOG) {
+                        /* dump sense data */
+                        dasd_log_sense(cqr, irb);
+                }
                 switch (era) {
                 case dasd_era_fatal:
                         cqr->status = DASD_CQR_FAILED;