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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.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 0e86247d791e..33975e922d65 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1186,6 +1186,29 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
1186 dasd_schedule_device_bh(device); 1186 dasd_schedule_device_bh(device);
1187} 1187}
1188 1188
1189enum uc_todo dasd_generic_uc_handler(struct ccw_device *cdev, struct irb *irb)
1190{
1191 struct dasd_device *device;
1192
1193 device = dasd_device_from_cdev_locked(cdev);
1194
1195 if (IS_ERR(device))
1196 goto out;
1197 if (test_bit(DASD_FLAG_OFFLINE, &device->flags) ||
1198 device->state != device->target ||
1199 !device->discipline->handle_unsolicited_interrupt){
1200 dasd_put_device(device);
1201 goto out;
1202 }
1203
1204 dasd_device_clear_timer(device);
1205 device->discipline->handle_unsolicited_interrupt(device, irb);
1206 dasd_put_device(device);
1207out:
1208 return UC_TODO_RETRY;
1209}
1210EXPORT_SYMBOL_GPL(dasd_generic_uc_handler);
1211
1189/* 1212/*
1190 * If we have an error on a dasd_block layer request then we cancel 1213 * If we have an error on a dasd_block layer request then we cancel
1191 * and return all further requests from the same dasd_block as well. 1214 * and return all further requests from the same dasd_block as well.