From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: linux-kernel@vger.kernel.org, peter.oberparleiter@de.ibm.com
Subject: [S390] cio: improve unit check handling for internal operations
Date: Wed, 4 Oct 2006 20:00:46 +0200 [thread overview]
Message-ID: <20061004180046.GK26756@skybase> (raw)
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
[S390] cio: improve unit check handling for internal operations
Retry internal operation after unit check instead of aborting them.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
drivers/s390/cio/device_ops.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff -urpN linux-2.6/drivers/s390/cio/device_ops.c linux-2.6-patched/drivers/s390/cio/device_ops.c
--- linux-2.6/drivers/s390/cio/device_ops.c 2006-10-04 19:53:54.000000000 +0200
+++ linux-2.6-patched/drivers/s390/cio/device_ops.c 2006-10-04 19:53:54.000000000 +0200
@@ -288,10 +288,10 @@ ccw_device_wake_up(struct ccw_device *cd
if (cdev->private->flags.doverify ||
cdev->private->state == DEV_STATE_VERIFY)
cdev->private->intparm = -EAGAIN;
- if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) &&
- !(irb->ecw[0] &
- (SNS0_CMD_REJECT | SNS0_INTERVENTION_REQ)))
- cdev->private->intparm = -EAGAIN;
+ else if ((irb->scsw.dstat & DEV_STAT_UNIT_CHECK) &&
+ !(irb->ecw[0] &
+ (SNS0_CMD_REJECT | SNS0_INTERVENTION_REQ)))
+ cdev->private->intparm = -EAGAIN;
else if ((irb->scsw.dstat & DEV_STAT_ATTENTION) &&
(irb->scsw.dstat & DEV_STAT_DEV_END) &&
(irb->scsw.dstat & DEV_STAT_UNIT_EXCEP))
reply other threads:[~2006-10-04 18:01 UTC|newest]
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