On 29 Jun 2020, at 11:19, Matthew Wilcox (Oracle) wrote:

These are some generic cleanups and improvements, which I would like
merged into mmotm soon.  The first one should be a performance improvement
for all users of compound pages, and the others are aimed at getting
code to compile away when CONFIG_TRANSPARENT_HUGEPAGE is disabled (ie
small systems).  Also better documented / less confusing than the current
prefix mixture of compound, hpage and thp.

Matthew Wilcox (Oracle) (7):
  mm: Store compound_nr as well as compound_order
  mm: Move page-flags include to top of file
  mm: Add thp_order
  mm: Add thp_size
  mm: Replace hpage_nr_pages with thp_nr_pages
  mm: Add thp_head
  mm: Introduce offset_in_thp

The whole series looks good to me. Thank you for the patches.

Reviewed-by: Zi Yan <ziy@nvidia.com>

—
Best Regards,
Yan Zi