kernel memory leak: freeing pagetables in vmfree_area_pages in

I was talking about this leak 2 days back but my mail ot lost..
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we have in vfree -->
vmfree_area_pages (calling) free_area_pmd (calling) free_area_pte (calling)
free_page.
The final free_page frees all the pages that are allocated to a memory region in
vmalloc.
Now where are we freeing pages that are allocated to page table themselves.
For simplicity we can assume 2 level page tables (pgd == pmd)

Regards
Amol