+upgrade_version(zpool_handle_t *zhp, uint64_t version)
+{
+ int ret;
+ nvlist_t *config;
+ uint64_t oldversion;
+
+ config = zpool_get_config(zhp, NULL);
+ verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
+ &oldversion) == 0);
+
+ assert(SPA_VERSION_IS_SUPPORTED(oldversion));
+ assert(oldversion < version);
+
+ ret = zpool_upgrade(zhp, version);
+ if (ret != 0)
+ return (ret);
+
+ if (version >= SPA_VERSION_FEATURES) {
+ (void) printf(gettext("Successfully upgraded "
+ "'%s' from version %llu to feature flags.\n"),
+ zpool_get_name(zhp), (u_longlong_t) oldversion);
+ } else {
+ (void) printf(gettext("Successfully upgraded "
+ "'%s' from version %llu to version %llu.\n"),
+ zpool_get_name(zhp), (u_longlong_t) oldversion,
+ (u_longlong_t) version);
+ }
+
+ return (0);
+}
+
+static int
+upgrade_enable_all(zpool_handle_t *zhp, int *countp)
+{
+ int i, ret, count;
+ boolean_t firstff = B_TRUE;
+ nvlist_t *enabled = zpool_get_features(zhp);
+
+ count = 0;
+ for (i = 0; i < SPA_FEATURES; i++) {
+ const char *fname = spa_feature_table[i].fi_uname;
+ const char *fguid = spa_feature_table[i].fi_guid;
+ if (!nvlist_exists(enabled, fguid)) {
+ char *propname;
+ verify(-1 != asprintf(&propname, "feature@%s", fname));
+ ret = zpool_set_prop(zhp, propname,
+ ZFS_FEATURE_ENABLED);
+ if (ret != 0) {
+ free(propname);
+ return (ret);
+ }
+ count++;
+
+ if (firstff) {
+ (void) printf(gettext("Enabled the "
+ "following features on '%s':\n"),
+ zpool_get_name(zhp));
+ firstff = B_FALSE;
+ }
+ (void) printf(gettext(" %s\n"), fname);
+ free(propname);
+ }
+ }
+
+ if (countp != NULL)
+ *countp = count;
+ return (0);
+}
+
+static int