| Date | Thu, 5 Jan 2023 10:18:13 +0000 | Subject | [PATCH 15/46] hugetlb: make default arch_make_huge_pte understand small mappings | From | James Houghton <> |
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This is a simple change: don't create a "huge" PTE if we are making a regular, PAGE_SIZE PTE. All architectures that want to implement HGM likely need to be changed in a similar way if they implement their own version of arch_make_huge_pte.
Signed-off-by: James Houghton <jthoughton@google.com> --- include/linux/hugetlb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 2fcd8f313628..b7cf45535d64 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -912,7 +912,7 @@ static inline void arch_clear_hugepage_flags(struct page *page) { } static inline pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags) { - return pte_mkhuge(entry); + return shift > PAGE_SHIFT ? pte_mkhuge(entry) : entry; } #endif -- 2.39.0.314.g84b9a713c41-goog
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