v1 ==> v2:
remove page_nth

It isn't true for only SPARSEMEM configs to assume that a compound page
has virtually contiguous page structs, so use nth_page to iterate each
page.

Inspired by:
https://lore.kernel.org/linux-mm/20220204195852.1751729-8-willy@infradead.org/

Chen Wandun (2):
  mm: fix contiguous memmap assumptions about split page
  mm: fix contiguous memmap assumptions about alloc/free pages

 mm/compaction.c  |  6 +++---
 mm/huge_memory.c |  2 +-
 mm/page_alloc.c  | 18 ++++++++++--------
 3 files changed, 14 insertions(+), 12 deletions(-)

-- 
2.18.0.huawei.25