rsm_memseg_import_destroy_barrier
if (segops->rsm_memseg_import_destroy_barrier == NULL) {
segops->rsm_memseg_import_destroy_barrier =
return (ops->rsm_memseg_import_destroy_barrier
segops->rsm_memseg_import_destroy_barrier = loopback_destroy_barrier;
int rsm_memseg_import_destroy_barrier(rsmapi_barrier_t *barrier);
int (* rsm_memseg_import_destroy_barrier)(rsm_barrier_handle_t barrier);