+ /* we can free something. however, some of these pages may be marked as
+ * unfreeable, so also check that as well
+ */
+ n_segs = aligned_len / page_sz;
+ for (i = 0; i < n_segs; i++) {
+ const struct rte_memseg *tmp =
+ rte_mem_virt2memseg(aligned_start, msl);
+
+ if (tmp->flags & RTE_MEMSEG_FLAG_DO_NOT_FREE) {
+ /* this is an unfreeable segment, so move start */
+ aligned_start = RTE_PTR_ADD(tmp->addr, tmp->len);
+ }
+ }
+
+ /* recalculate length and number of segments */
+ aligned_len = RTE_PTR_DIFF(aligned_end, aligned_start);
+ n_segs = aligned_len / page_sz;
+
+ /* check if we can still free some pages */
+ if (n_segs == 0)
+ goto free_unlock;
+