diff options
| -rw-r--r-- | include/linux/page-flags.h | 7 | ||||
| -rw-r--r-- | mm/hugetlb.c | 18 |
2 files changed, 12 insertions, 13 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index dcda20c47b8f..efc42fae3d96 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -815,14 +815,9 @@ static inline void ClearPageCompound(struct page *page) #ifdef CONFIG_HUGETLB_PAGE int PageHuge(struct page *page); -int PageHeadHuge(struct page *page); -static inline bool folio_test_hugetlb(struct folio *folio) -{ - return PageHeadHuge(&folio->page); -} +bool folio_test_hugetlb(struct folio *folio); #else TESTPAGEFLAG_FALSE(Huge, hugetlb) -TESTPAGEFLAG_FALSE(HeadHuge, headhuge) #endif #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a58b3739ed4b..7e4a80769c9e 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2050,19 +2050,23 @@ int PageHuge(struct page *page) } EXPORT_SYMBOL_GPL(PageHuge); -/* - * PageHeadHuge() only returns true for hugetlbfs head page, but not for - * normal or transparent huge pages. +/** + * folio_test_hugetlb - Determine if the folio belongs to hugetlbfs + * @folio: The folio to test. + * + * Context: Any context. Caller should have a reference on the folio to + * prevent it from being turned into a tail page. + * Return: True for hugetlbfs folios, false for anon folios or folios + * belonging to other filesystems. */ -int PageHeadHuge(struct page *page_head) +bool folio_test_hugetlb(struct folio *folio) { - struct folio *folio = (struct folio *)page_head; if (!folio_test_large(folio)) - return 0; + return false; return folio->_folio_dtor == HUGETLB_PAGE_DTOR; } -EXPORT_SYMBOL_GPL(PageHeadHuge); +EXPORT_SYMBOL_GPL(folio_test_hugetlb); /* * Find and lock address space (mapping) in write mode. |