xpvtap_user_request_unmap
xpvtap_user_request_unmap(state, uid);
static void xpvtap_user_request_unmap(xpvtap_state_t *state, uint_t uid);
xpvtap_rs_flush(state->bt_map.um_rs, xpvtap_user_request_unmap, state);