From: Bang Li <libang.li@antgroup.com>
Date: Wed, 22 May 2024 06:12:04 +0000 (+0800)
Subject: mm: use update_mmu_tlb_range() to simplify code
X-Git-Tag: v6.11-rc1~85^2~374
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6faa49d1c4404e0b949fd92f1e891c24870d4f86;p=thirdparty%2Fkernel%2Flinux.git

mm: use update_mmu_tlb_range() to simplify code

Let us simplify the code by update_mmu_tlb_range().

Link: https://lkml.kernel.org/r/20240522061204.117421-4-libang.li@antgroup.com
Signed-off-by: Bang Li <libang.li@antgroup.com>
Reviewed-by: Lance Yang <ioworker0@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memory.c b/mm/memory.c
index d451b31259433..edf2004fcdf97 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4457,7 +4457,6 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 	vm_fault_t ret = 0;
 	int nr_pages = 1;
 	pte_t entry;
-	int i;
 
 	/* File mapping without ->vm_ops ? */
 	if (vma->vm_flags & VM_SHARED)
@@ -4527,8 +4526,7 @@ static vm_fault_t do_anonymous_page(struct vm_fault *vmf)
 		update_mmu_tlb(vma, addr, vmf->pte);
 		goto release;
 	} else if (nr_pages > 1 && !pte_range_none(vmf->pte, nr_pages)) {
-		for (i = 0; i < nr_pages; i++)
-			update_mmu_tlb(vma, addr + PAGE_SIZE * i, vmf->pte + i);
+		update_mmu_tlb_range(vma, addr, vmf->pte, nr_pages);
 		goto release;
 	}