Re: [PATCH] mm: memory: use nth_page() in clear/copy_subpage()

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On Fri, Dec 29, 2023 at 04:22:07PM +0800, Kefeng Wang wrote:
> The clear and copy of huge gigantic page has converted to use nth_page()
> to handle the possible discontinuous struct page(SPARSEMEM without VMEMMAP),
> but not change for the non-gigantic part, fix it too.

Can there be discontiguities within a non-gigantic huge page?  My
impression was that you can't have a discontiguity at such a small
boundary.




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