Messages in this thread Patch in this message | | | From | Sidhartha Kumar <> | Subject | [PATCH 6/7] mm/hugetlb add folio_hstate() | Date | Mon, 29 Aug 2022 16:00:13 -0700 |
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Helper function to retrieve hstate information from a hugetlb folio.
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com> --- include/linux/hugetlb.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index d8742c5bf454..093b5d32d6b5 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -815,10 +815,15 @@ static inline pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, } #endif +static inline struct hstate *folio_hstate(struct folio *folio) +{ + VM_BUG_ON_FOLIO(!folio_test_hugetlb(folio), folio); + return size_to_hstate(folio_size(folio)); +} + static inline struct hstate *page_hstate(struct page *page) { - VM_BUG_ON_PAGE(!PageHuge(page), page); - return size_to_hstate(page_size(page)); + return folio_hstate(page_folio(page)); } static inline unsigned hstate_index_to_shift(unsigned index) -- 2.31.1
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