-void zfs_sa_uprade_pre(struct sa_handle *, void *, dmu_tx_t *);
-void zfs_sa_upgrade_post(struct sa_handle *, void *, dmu_tx_t *);
+int zfs_sa_get_xattr(struct znode *);
+int zfs_sa_set_xattr(struct znode *);
+void zfs_sa_upgrade(struct sa_handle *, dmu_tx_t *);