Re: [PATCH v3 0/7] Split a folio to any lower order folios

[Andrew Morton]

On Mon,  3 Apr 2023 16:18:32 -0400 Zi Yan <zi.yan@xxxxxxxx> wrote:

> File folio supports any order and people would like to support flexible orders
> for anonymous folio[1] too. Currently, split_huge_page() only splits a huge
> page to order-0 pages, but splitting to orders higher than 0 is also useful.
> This patchset adds support for splitting a huge page to any lower order pages
> and uses it during file folio truncate operations.

This series (and its v1 & v2) don't appear to have much in the way of
detailed review.  As it's at v3 and has been fairly stable I'll queue
it up for some testing now, but I do ask that some reviewers go through
it please.