+clib_error_t *vlib_sysfs_set_nr_hugepages (unsigned int numa_node,
+ int page_size, int nr);
+clib_error_t *vlib_sysfs_get_nr_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_get_free_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_get_surplus_hugepages (unsigned int numa_node,
+ int page_size, int *v);
+clib_error_t *vlib_sysfs_prealloc_hugepages (unsigned int numa_node,
+ int page_size, int nr);