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    SubjectRe: [PATCH 1/6] freepgt: free_pgtables use vma list
    On Fri, 25 Mar 2005 16:32:07 +1100
    Nick Piggin <nickpiggin@yahoo.com.au> wrote:

    > So, to make the question more concrete: if a pgd_t is freed due
    > to freeing the single pmd_t contained within it (which was the
    > only part of the pgd's address space that contained a valid mapping)
    > Then do you need the full PGDIR_SIZE width passed to
    > flush_tlb_pgtables, or just the PMD_SIZE'd start,end that covered
    > the freed pmd_t?

    Just the PMD_SIZE'd start,end is necessary.
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