From 3d243659d94fd6d521c4573ec467bacef911ccb3 Mon Sep 17 00:00:00 2001 From: Sidhartha Kumar Date: Thu, 6 Jul 2023 09:38:44 -0700 Subject: [PATCH] mm/memory: convert do_page_mkwrite() to use folios Saves one implicit call to compound_head(). Link: https://lkml.kernel.org/r/20230706163847.403202-1-sidhartha.kumar@oracle.com Signed-off-by: Sidhartha Kumar Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: ZhangPeng Signed-off-by: Andrew Morton --- mm/memory.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 7fb87a9c025af..5209f3d80948a 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2933,7 +2933,7 @@ static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) static vm_fault_t do_page_mkwrite(struct vm_fault *vmf) { vm_fault_t ret; - struct page *page = vmf->page; + struct folio *folio = page_folio(vmf->page); unsigned int old_flags = vmf->flags; vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; @@ -2948,14 +2948,14 @@ static vm_fault_t do_page_mkwrite(struct vm_fault *vmf) if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE))) return ret; if (unlikely(!(ret & VM_FAULT_LOCKED))) { - lock_page(page); - if (!page->mapping) { - unlock_page(page); + folio_lock(folio); + if (!folio->mapping) { + folio_unlock(folio); return 0; /* retry */ } ret |= VM_FAULT_LOCKED; } else - VM_BUG_ON_PAGE(!PageLocked(page), page); + VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio); return ret; } -- 2.30.2