From f0327de7067c008088d96592198ec6df045c5a1b Mon Sep 17 00:00:00 2001 From: "Matthew Wilcox (Oracle)" Date: Wed, 2 Oct 2024 16:13:27 +0100 Subject: [PATCH] gup: convert FOLL_TOUCH case in follow_page_pte() to folio We already have the folio here, so just use it, removing three hidden calls to compound_head(). Link: https://lkml.kernel.org/r/20241002151403.1345296-1-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Acked-by: David Hildenbrand Signed-off-by: Andrew Morton --- mm/gup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/gup.c b/mm/gup.c index 4637dab7b54f..28ae330ec4dd 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -922,14 +922,14 @@ static struct page *follow_page_pte(struct vm_area_struct *vma, } if (flags & FOLL_TOUCH) { if ((flags & FOLL_WRITE) && - !pte_dirty(pte) && !PageDirty(page)) - set_page_dirty(page); + !pte_dirty(pte) && !folio_test_dirty(folio)) + folio_mark_dirty(folio); /* * pte_mkyoung() would be more correct here, but atomic care * is needed to avoid losing the dirty bit: it is easier to use - * mark_page_accessed(). + * folio_mark_accessed(). */ - mark_page_accessed(page); + folio_mark_accessed(folio); } out: pte_unmap_unlock(ptep, ptl); -- 2.25.1