Messages in this thread | | | From | Zi Yan <> | Subject | [PATCH v2 0/5] Use nth_page() in place of direct struct page manipulation | Date | Wed, 6 Sep 2023 11:03:04 -0400 |
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From: Zi Yan <ziy@nvidia.com>
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-20230906
Changes from v1: 1. Separated first patch into three and add Fixes for better backport. 2. Collected Reviewed-by.
Zi Yan (5): mm/cma: use nth_page() in place of direct struct page manipulation. mm/hugetlb: use nth_page() in place of direct struct page manipulation. mm/memory_hotplug: 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(-)
-- 2.40.1
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