Messages in this thread Patch in this message | | | Date | Mon, 7 Aug 2006 17:05:47 +0200 | From | Martin Schwidefsky <> | Subject | [patch] s390: retry after deferred condition code. |
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From: Cornelia Huck <cornelia.huck@de.ibm.com>
[S390] retry after deferred condition code.
Do a retry of read device characteristics / read configuration data when a deferred condition code 1 is encountered in ccw_device_wake_up().
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
drivers/s390/cio/device_ops.c | 3 +++ 1 files changed, 3 insertions(+)
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 2006-08-07 14:14:29.000000000 +0200 +++ linux-2.6-patched/drivers/s390/cio/device_ops.c 2006-08-07 14:14:43.000000000 +0200 @@ -263,6 +263,9 @@ ccw_device_wake_up(struct ccw_device *cd /* Abuse intparm for error reporting. */ if (IS_ERR(irb)) cdev->private->intparm = -EIO; + else if (irb->scsw.cc == 1) + /* Retry for deferred condition code. */ + cdev->private->intparm = -EAGAIN; else if ((irb->scsw.dstat != (DEV_STAT_CHN_END|DEV_STAT_DEV_END)) || (irb->scsw.cstat != 0)) { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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