From: Michael Ernst <mernst@xxxxxxxxxx>
CCW_CMD_SUSPEND_RECONN causes a system hang if the cable of a
reserved DASD is disconnected and connected again.
Signed-off-by: Michael Ernst <mernst@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
drivers/s390/cio/device_pgid.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
Index: quilt-2.6/drivers/s390/cio/device_pgid.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/device_pgid.c
+++ quilt-2.6/drivers/s390/cio/device_pgid.c
@@ -243,16 +243,10 @@ __ccw_device_do_pgid(struct ccw_device *
/* Setup sense path group id channel program. */
cdev->private->pgid[0].inf.fc = func;
ccw = cdev->private->iccws;
- if (!cdev->private->flags.pgid_single) {
- cdev->private->pgid[0].inf.fc |= SPID_FUNC_MULTI_PATH;
- ccw->cmd_code = CCW_CMD_SUSPEND_RECONN;
- ccw->cda = 0;
- ccw->count = 0;
- ccw->flags = CCW_FLAG_SLI | CCW_FLAG_CC;
- ccw++;
- } else
+ if (cdev->private->flags.pgid_single)
cdev->private->pgid[0].inf.fc |= SPID_FUNC_SINGLE_PATH;
-
+ else
+ cdev->private->pgid[0].inf.fc |= SPID_FUNC_MULTI_PATH;
ccw->cmd_code = CCW_CMD_SET_PGID;
ccw->cda = (__u32) __pa (&cdev->private->pgid[0]);
ccw->count = sizeof (struct pgid);
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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