From 1f1148c88ad37c87f14d2153416a605bf0aeaf74 Mon Sep 17 00:00:00 2001
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Date: Fri, 11 Sep 2009 10:28:14 +0200
Subject: [PATCH] [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>
---
drivers/s390/cio/device_fsm.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 3db88c52d287..b8bdb0d75426 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -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,
--
2.20.1