Re: [RFC 2/3] mm: add STATIC_PMD_ZERO_PAGE config option
From: David Hildenbrand <hidden>
Date: 2025-06-02 20:33:01
Also in:
linux-fsdevel, linux-mm, lkml
From: David Hildenbrand <hidden>
Date: 2025-06-02 20:33:01
Also in:
linux-fsdevel, linux-mm, lkml
On 02.06.25 22:28, David Hildenbrand wrote:
On 02.06.25 16:49, Pankaj Raghav wrote:quoted
On 6/2/25 07:03, Christoph Hellwig wrote:quoted
Should this say FOLIO instead of PAGE in the config option to match the symbol protected by it?I am still discussing how the final implementation should be with David. But I will change the _PAGE to _FOLIO as that is what we would like to expose at the end.It's a huge page, represented internally as a folio. No strong opinion, as ... MMF_HUGE_ZERO_PAGE vs. mm_get_huge_zero_folio vs. get_huge_zero_page vs ... :)
Just to add, the existing one is exposed (configurable) to the user through /sys/kernel/mm/transparent_hugepage/use_zero_page combined with the implicit size through /sys/kernel/mm/transparent_hugepage/hpage_pmd_size -- Cheers, David / dhildenb