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SubjectRe: [PATCH 1/6] freepgt: free_pgtables use vma list
Nick Piggin wrote:
> Hugh Dickins wrote:
>
>> And the range to sparc64's flush_tlb_pgtables? It's less clear to me
>> now that we need to do more than is done here - every PMD_SIZE ever
>> occupied will be flushed, do we really have to flush every PGDIR_SIZE
>> ever partially occupied? A shame to complicate it unnecessarily.
>
>
> It looks like sparc64 is the only user of this, so it is up to
> you Dave.
>

Oh - one other question too. Doing the unmap and page table freeing in
the same pass will put freed pagecache pages in the same mmu_gather as
the freed page table pages. This looks like it may be a problem for
sparc64?


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