[PATCH v3 0/2] hwpoison: fix race with compound page allocation

From: Naoya Horiguchi
Date: Tue May 11 2021 - 11:10:35 EST

Hi everyone,

I updated the patch for the issue reported by Muchun Song in [1]. I
separated into two patches (to reduce the size of core fix for stable):
patch 1/2 focuses on preventing VM_BUG_ON_PAGE() in the reported race.
Patch 2/2 includes some code improvement like calling retry code, revising
the function comment, and some refactoring.

Any comment and testing would be appreciated.

Naoya Horiguchi

[1] https://lore.kernel.org/linux-mm/20210421060259.67554-1-songmuchun@xxxxxxxxxxxxx/T/

Naoya Horiguchi (2):
mm,hwpoison: fix race with compound page allocation
mm,hwpoison: make get_hwpoison_page call get_any_page()

mm/memory-failure.c | 169 +++++++++++++++++++++++++++++-----------------------
1 file changed, 96 insertions(+), 73 deletions(-)