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path: root/drivers/s390/block/dasd.c
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Diffstat (limited to 'drivers/s390/block/dasd.c')
-rw-r--r--drivers/s390/block/dasd.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 15370a2c5ff..0595c763daf 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -534,11 +534,11 @@ static void dasd_change_state(struct dasd_device *device)
if (rc)
device->target = device->state;
- if (device->state == device->target)
- wake_up(&dasd_init_waitq);
-
/* let user-space know that the device status changed */
kobject_uevent(&device->cdev->dev.kobj, KOBJ_CHANGE);
+
+ if (device->state == device->target)
+ wake_up(&dasd_init_waitq);
}
/*
@@ -2157,6 +2157,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
test_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags) &&
(!dasd_eer_enabled(device))) {
cqr->status = DASD_CQR_FAILED;
+ cqr->intrc = -EAGAIN;
continue;
}
/* Don't try to start requests if device is stopped */
@@ -3270,6 +3271,16 @@ void dasd_generic_path_event(struct ccw_device *cdev, int *path_event)
dasd_schedule_device_bh(device);
}
if (path_event[chp] & PE_PATHGROUP_ESTABLISHED) {
+ if (!(device->path_data.opm & eventlpm) &&
+ !(device->path_data.tbvpm & eventlpm)) {
+ /*
+ * we can not establish a pathgroup on an
+ * unavailable path, so trigger a path
+ * verification first
+ */
+ device->path_data.tbvpm |= eventlpm;
+ dasd_schedule_device_bh(device);
+ }
DBF_DEV_EVENT(DBF_WARNING, device, "%s",
"Pathgroup re-established\n");
if (device->discipline->kick_validate)