Re: [PATCH] mm: alloc_anon_folio: avoid doing vma_thp_gfp_mask in fallback cases

From: Yu Zhao
Date: Mon Apr 01 2024 - 10:32:13 EST


On Fri, Mar 29, 2024 at 3:38 AM Barry Song <21cnbao@xxxxxxxxx> wrote:
>
> From: Barry Song <v-songbaohua@xxxxxxxx>
>
> Fallback rates surpassing 90% have been observed on phones utilizing 64KiB
> CONT-PTE mTHP. In these scenarios, when one out of every 16 PTEs fails
> to allocate large folios, the remaining 15 PTEs fallback. Consequently,
> invoking vma_thp_gfp_mask seems redundant in such cases. Furthermore,
> abstaining from its use can also contribute to improved code readability.

Acked-by: Yu Zhao <yuzhao@xxxxxxxxxx>