Re: [External] Re: [PATCH v5 18/21] mm/hugetlb: Merge pte to huge pmd only for gigantic page

On Fri, Nov 20, 2020 at 4:24 PM Michal Hocko wrote: > > On Fri 20-11-20 14:43:22, Muchun Song wrote: > > Merge pte to huge pmd if it has ever been split. Now only support > > gigantic page which's vmemmap pages size is an integer multiple of > > PMD_SIZE. This is the simplest case to handle. > >

Re: [PATCH v5 18/21] mm/hugetlb: Merge pte to huge pmd only for gigantic page

On Fri 20-11-20 14:43:22, Muchun Song wrote: > Merge pte to huge pmd if it has ever been split. Now only support > gigantic page which's vmemmap pages size is an integer multiple of > PMD_SIZE. This is the simplest case to handle. I think it would be benefitial for anybody who plan to implement

[PATCH v5 18/21] mm/hugetlb: Merge pte to huge pmd only for gigantic page

Merge pte to huge pmd if it has ever been split. Now only support gigantic page which's vmemmap pages size is an integer multiple of PMD_SIZE. This is the simplest case to handle. Signed-off-by: Muchun Song --- arch/x86/include/asm/hugetlb.h | 8 +++ mm/hugetlb_vmemmap.c | 118