Re: [PATCH v4 0/7] Split a folio to any lower order folios

Hi Pankaj,

On 13 Feb 2024, at 16:55, Zi Yan wrote:

From: Zi Yan ziy@nvidia.com

Hi all,

File folio supports any order and multi-size THP is upstreamed[1], so both file and anonymous folios can be >0 order. Currently, split_huge_page() only splits a huge page to order-0 pages, but splitting to orders higher than 0 is going to better utilize large folios. In addition, Large Block Sizes in XFS support would benefit from it[2]. This patchset adds support for

Just talked to Matthew about his order-1 pagecache folio, I am planning to grab that into this one, so that I can remove the restriction in my patches and you guys do not need to do that in your patchset. Let me know if it works for you.

-- Best Regards, Yan, Zi