zap_length
zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
VERIFY(zap_length(os, object, propname, &zl_intsize,
error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
error = zap_length(os, object, name, &zl_wsize, &zl_wc);
err = zap_length(mos, bmark_zapobj, name, &int_size, &num_ints);
err = zap_length(mos, ds->ds_object,
int zap_length(objset_t *ds, uint64_t zapobj, const char *name,