*/
nvl = NULL;
while ((spa = spa_next(spa)) != NULL) {
- if (spa == target && removing)
+ /*
+ * Skip over our own pool if we're about to remove
+ * ourselves from the spa namespace or any pool that
+ * is readonly. Since we cannot guarantee that a
+ * readonly pool would successfully import upon reboot,
+ * we don't allow them to be written to the cache file.
+ */
+ if ((spa == target && removing) ||
+ !spa_writeable(spa))
continue;
mutex_enter(&spa->spa_props_lock);