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[S390] cio: fix ineffective verify event 

Path verification events occurring for offline devices are currently
ignored. As a result, offline devices are not removed, even though
they might no longer be accessible (for example because the last path
to the device was varied offline). Fix this by scheduling a status
evaluation for the affected subchannel when a path verification event
occurs.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Peter Oberparleiter 2009-09-11 10:28:14 +02:00 committed by Martin Schwidefsky
parent 0d03d59d9b
commit 1f1148c88a
1 changed files with 12 additions and 1 deletions
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13
drivers/s390/cio/device_fsm.c
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@ -730,6 +730,17 @@ static void ccw_device_generic_notoper(struct ccw_device *cdev,
css_schedule_eval(sch->schid);
}
/*
* Handle path verification event in offline state.
*/
static void ccw_device_offline_verify(struct ccw_device *cdev,
enum dev_event dev_event)
{
struct subchannel *sch = to_subchannel(cdev->dev.parent);
css_schedule_eval(sch->schid);
}
/*
* Handle path verification event.
*/
@ -1149,7 +1160,7 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = {
[DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,
[DEV_EVENT_INTERRUPT] = ccw_device_offline_irq,
[DEV_EVENT_TIMEOUT] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_nop,
[DEV_EVENT_VERIFY] = ccw_device_offline_verify,
},
[DEV_STATE_VERIFY] = {
[DEV_EVENT_NOTOPER] = ccw_device_generic_notoper,