ZFS_SA_ATTRS
(void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1,
ZFS_SA_ATTRS);
ZFS_SA_ATTRS, 8, 1, &sa_obj, tx);
error = zap_add(os, moid, ZFS_SA_ATTRS, 8, 1, &sa_obj, tx);
error = zap_lookup(osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, &sa_obj);