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[v2,0/2] fix several contiguous memmap assumptions

Message ID 20220330102534.1053240-1-chenwandun@huawei.com (mailing list archive)
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Series fix several contiguous memmap assumptions | expand

Message

Chen Wandun March 30, 2022, 10:25 a.m. UTC 
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(-)