dasd: fix unresponsive device during format
If path events occur the formatting process stucks because path
events may flush format requests from the queue.
Kick the format process after path events are handled.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 5e8442c..9242d7c 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1675,8 +1675,11 @@
if (cqr->status == DASD_CQR_CLEAR_PENDING &&
scsw_fctl(&irb->scsw) & SCSW_FCTL_CLEAR_FUNC) {
cqr->status = DASD_CQR_CLEARED;
+ if (cqr->callback_data == DASD_SLEEPON_START_TAG)
+ cqr->callback_data = DASD_SLEEPON_END_TAG;
dasd_device_clear_timer(device);
wake_up(&dasd_flush_wq);
+ wake_up(&generic_waitq);
dasd_schedule_device_bh(device);
return;
}
@@ -2439,6 +2442,8 @@
case DASD_CQR_QUEUED:
/* request was not started - just set to cleared */
cqr->status = DASD_CQR_CLEARED;
+ if (cqr->callback_data == DASD_SLEEPON_START_TAG)
+ cqr->callback_data = DASD_SLEEPON_END_TAG;
break;
case DASD_CQR_IN_IO:
/* request in IO - terminate IO and release again */
@@ -3512,6 +3517,10 @@
dasd_schedule_device_bh(device);
if (device->block)
dasd_schedule_block_bh(device->block);
+
+ if (!device->stopped)
+ wake_up(&generic_waitq);
+
return 1;
}
EXPORT_SYMBOL_GPL(dasd_generic_path_operational);