Re: [PATCH 1/3] mm: use nth_page() in place of direct struct page manipulation.

[Zi Yan]

On 31 Aug 2023, at 3:14, Muchun Song wrote:

>> On Aug 31, 2023, at 02:27, Zi Yan <zi.yan@xxxxxxxx> wrote:
>>
>> From: Zi Yan <ziy@xxxxxxxxxx>
>>
>> When dealing with hugetlb pages, manipulating struct page pointers
>> directly can get to wrong struct page, since struct page is not guaranteed
>> to be contiguous on SPARSEMEM without VMEMMAP. Use nth_page() to handle
>> it properly.
>>
>> Signed-off-by: Zi Yan <ziy@xxxxxxxxxx>
>
> Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
>
> Maybe 3 separate patches would be better for backporting purpose.
Sure. Will split it and add Fixes in the next version.

--
Best Regards,
Yan, Zi

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