zfeature_register(SPA_FEATURE_ASYNC_DESTROY,
"com.delphix:async_destroy", "async_destroy",
"Destroy filesystems asynchronously.", B_TRUE, B_FALSE, NULL);
+ zfeature_register(SPA_FEATURE_EMPTY_BPOBJ,
+ "com.delphix:empty_bpobj", "empty_bpobj",
+ "Snapshots use less space.", B_TRUE, B_FALSE, NULL);
}