- if (spa_version(dn->dn_objset->os_spa) < SPA_VERSION_SA)
- return (EINVAL);
- rw_enter(&dn->dn_struct_rwlock, RW_READER);
+ DB_DNODE_ENTER(db);
+ dn = DB_DNODE(db);
+
+ if (spa_version(dn->dn_objset->os_spa) < SPA_VERSION_SA) {
+ err = EINVAL;
+ } else {
+ rw_enter(&dn->dn_struct_rwlock, RW_READER);
+
+ if (!dn->dn_have_spill) {
+ err = ENOENT;
+ } else {
+ err = dmu_spill_hold_by_dnode(dn,
+ DB_RF_HAVESTRUCT | DB_RF_CANFAIL, tag, dbp);
+ }