+int
+clib_mem_set_numa_affinity (u8 numa_node, int force)
+{
+ clib_mem_main_t *mm = &clib_mem_main;
+ long unsigned int mask[16] = { 0 };
+ int mask_len = sizeof (mask) * 8 + 1;
+
+ /* no numa support */
+ if (mm->numa_node_bitmap == 0)
+ {
+ if (numa_node)
+ {
+ vec_reset_length (mm->error);
+ mm->error = clib_error_return (mm->error, "%s: numa not supported",
+ (char *) __func__);
+ return CLIB_MEM_ERROR;
+ }
+ else
+ return 0;
+ }
+
+ mask[0] = 1 << numa_node;
+
+ if (set_mempolicy (force ? MPOL_BIND : MPOL_PREFERRED, mask, mask_len))
+ goto error;
+
+ vec_reset_length (mm->error);
+ return 0;
+
+error:
+ vec_reset_length (mm->error);
+ mm->error = clib_error_return_unix (mm->error, (char *) __func__);
+ return CLIB_MEM_ERROR;
+}
+
+int
+clib_mem_set_default_numa_affinity ()
+{
+ clib_mem_main_t *mm = &clib_mem_main;
+
+ if (set_mempolicy (MPOL_DEFAULT, 0, 0))
+ {
+ vec_reset_length (mm->error);
+ mm->error = clib_error_return_unix (mm->error, (char *) __func__);
+ return CLIB_MEM_ERROR;
+ }
+ return 0;
+}
+