if ((p = strchr(val, '\n')) != NULL)
*p = '\0';
- mutex_enter(&spa_namespace_lock);
- while ((spa = spa_next(spa)) != NULL) {
- if (spa_state(spa) != POOL_STATE_ACTIVE ||
- !spa_writeable(spa) || spa_suspended(spa))
- continue;
-
- spa_open_ref(spa, FTAG);
- mutex_exit(&spa_namespace_lock);
- vdev_elevator_switch(spa->spa_root_vdev, (char *)val);
+ if (spa_mode_global != 0) {
mutex_enter(&spa_namespace_lock);
- spa_close(spa, FTAG);
+ while ((spa = spa_next(spa)) != NULL) {
+ if (spa_state(spa) != POOL_STATE_ACTIVE ||
+ !spa_writeable(spa) || spa_suspended(spa))
+ continue;
+
+ spa_open_ref(spa, FTAG);
+ mutex_exit(&spa_namespace_lock);
+ vdev_elevator_switch(spa->spa_root_vdev, (char *)val);
+ mutex_enter(&spa_namespace_lock);
+ spa_close(spa, FTAG);
+ }
+ mutex_exit(&spa_namespace_lock);
}
- mutex_exit(&spa_namespace_lock);
return (param_set_charp(val, kp));
}