[PATCH 0/3] Use nth_page() in place of direct struct page manipulation

From: Zi Yan
Date: Wed Aug 30 2023 - 15:03:13 EST


From: Zi Yan <ziy@xxxxxxxxxx>

On SPARSEMEM without VMEMMAP, struct page is not guaranteed to be
contiguous, since each memory section's memmap might be allocated
independently. hugetlb pages can go beyond a memory section size, thus
direct struct page manipulation on hugetlb pages/subpages might give
wrong struct page. Kernel provides nth_page() to do the manipulation
properly. Use that whenever code can see hugetlb pages.

The patches are on top of next-20230830.

Zi Yan (3):
mm: use nth_page() in place of direct struct page manipulation.
fs: use nth_page() in place of direct struct page manipulation.
mips: use nth_page() in place of direct struct page manipulation.

arch/mips/mm/cache.c | 2 +-
fs/hugetlbfs/inode.c | 4 ++--
mm/cma.c | 2 +-
mm/hugetlb.c | 2 +-
mm/memory_hotplug.c | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)

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2.40.1