# Re: \[PATCH v3 00/14\] mm, sparse-vmemmap: Introduce compound pagemaps

- From: Andrew Morton \<akpm@linux-foundation.org\>
- Date: 2021-07-14 21:48:35 
- List: linux-doc
- Page: https://ratatoskr.run/linux-doc/2021/07/6509831
- Thread: https://ratatoskr.run/linux-mm/2021/07/6509813/t.md

```text
On Wed, 14 Jul 2021 20:35:28 +0100 Joao Martins [ref] wrote:

> This series, attempts at minimizing 'struct page' overhead by
> pursuing a similar approach as Muchun Song series "Free some vmemmap
> pages of hugetlb page"[0] but applied to devmap/ZONE_DEVICE which is now
> in mmotm. 
> 
> [0] https://lore.kernel.org/linux-mm/20210308102807.59745-1-songmuchun@bytedance.com/

[0] is now in mainline.

This patch series looks like it'll clash significantly with the folio
work and it is pretty thinly reviewed, so I think I'll take a pass for
now.  Matthew, thoughts?
```