Use correct page size \n not default

Author: Artem Belov

src/vppinfra/pmalloc.c

@@ -264,6 +264,7 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a,
   int old_mpol = -1;
   long unsigned int mask[16] = { 0 };
   long unsigned int old_mask[16] = { 0 };
+  uword page_size = 1 << a->log2_subpage_sz;
   uword size = (uword) n_pages << pm->def_log2_page_sz;
 
   clib_error_free (pm->error);
@@ -341,7 +342,7 @@ pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a,
   for (int i = 0; i < n_pages; i++)
     {
       unsigned char flag;
-      mincore(va + i * clib_mem_get_page_size(), 1, &flag);
+      mincore(va + i * page_size, 1, &flag);
       // flag is 1 if the page was successfully allocated and in memory
       if (!flag)
         {