The patch titled
Subject: mm: use update_mmu_tlb_range() to simplify code
has been added to the -mm mm-unstable branch. Its filename is
mm-use-update_mmu_tlb_range-to-simplify-code.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-use-update_mmu_tlb_range-to-simplify-code.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Bang Li" <libang.li@xxxxxxxxxxxx>
Subject: mm: use update_mmu_tlb_range() to simplify code
Date: Wed, 22 May 2024 14:12:04 +0800
Let us simplify the code by update_mmu_tlb_range().
Link: https://lkml.kernel.org/r/20240522061204.117421-4-libang.li@xxxxxxxxxxxx
Signed-off-by: Bang Li <libang.li@xxxxxxxxxxxx>
Reviewed-by: Lance Yang <ioworker0@xxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/mm/memory.c~mm-use-update_mmu_tlb_range-to-simplify-code
+++ a/mm/memory.c
@@ -4463,7 +4463,6 @@ static vm_fault_t do_anonymous_page(stru
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)
@@ -4533,8 +4532,7 @@ static vm_fault_t do_anonymous_page(stru
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;
}
_
Patches currently in -mm which might be from libang.li@xxxxxxxxxxxx are
mm-add-update_mmu_tlb_range.patch
mm-implement-update_mmu_tlb-using-update_mmu_tlb_range.patch
mm-use-update_mmu_tlb_range-to-simplify-code.patch
