+static int
+health_check_seq_show(struct seq_file *m, void *unused)
+{
+ int i;
+
+ read_lock(&obd_dev_lock);
+ for (i = 0; i < class_devno_max(); i++) {
+ struct obd_device *obd;
+
+ obd = class_num2obd(i);
+ if (obd == NULL || !obd->obd_attached || !obd->obd_set_up)
+ continue;
+
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+ if (obd->obd_stopping)
+ continue;
+
+ class_incref(obd, __func__, current);
+ read_unlock(&obd_dev_lock);
+
+ if (obd_health_check(NULL, obd)) {
+ seq_printf(m, "device %s reported unhealthy\n",
+ obd->obd_name);
+ }
+ class_decref(obd, __func__, current);
+ read_lock(&obd_dev_lock);
+ }
+ read_unlock(&obd_dev_lock);
+
+ return 0;
+}
+
+LDEBUGFS_SEQ_FOPS_RO(health_check);
+