From f04029f34e8c3750b8fb39b54e788b9355d1b912 Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Wed, 11 Jan 2023 14:29:05 +0000 Subject: [PATCH] mm: convert is_transparent_hugepage() to use a folio Replace a use of page->compound_dtor with its folio equivalent. Link: https://lkml.kernel.org/r/20230111142915.1001531-20-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/huge_memory.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 9570f03..bfa960f 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -591,12 +591,14 @@ void prep_transhuge_page(struct page *page) static inline bool is_transparent_hugepage(struct page *page) { + struct folio *folio; + if (!PageCompound(page)) return false; - page = compound_head(page); - return is_huge_zero_page(page) || - page[1].compound_dtor == TRANSHUGE_PAGE_DTOR; + folio = page_folio(page); + return is_huge_zero_page(&folio->page) || + folio->_folio_dtor == TRANSHUGE_PAGE_DTOR; } static unsigned long __thp_get_unmapped_area(struct file *filp, -- 2.7.4