Re: [PATCH v3 1/3] mm: enable MADV_DONTNEED for hugetlb mappings

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On 2/17/2022 4:58 PM, David Hildenbrand wrote:
>> In man page of mmap, NOTE for "Huge page (Huge TLB) mappings":
>>
>> "For munmap(), addr, and length must both be a multiple of the 
>> underlying huge page size."
>>
>> Should we apply same rule to MADV_DONTNEED? Thanks.
> madvise() already has different rules than mmap() for ordinary pages, so
> we'd much rather try staying consistent with madvise() rules.

Thanks for clarification.

Regards
Yin, Fengwei




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