From: "Bang Li" <libang.li@antgroup.com>
To: akpm@linux-foundation.org, chenhuacai@kernel.org,
tsbogend@alpha.franken.de, paul.walmsley@sifive.com,
palmer@dabbelt.com, chris@zankel.net, jcmvbkbc@gmail.com
Cc: <linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<loongarch@lists.linux.dev>, <linux-riscv@lists.infradead.org>,
<david@redhat.com>, <ryan.roberts@arm.com>, <ioworker0@gmail.com>,
<libang.linux@gmail.com>, "Bang Li" <libang.li@antgroup.com>
Subject: [PATCH v4 3/3] mm: Use update_mmu_tlb_range() to simplify code
Date: Wed, 22 May 2024 14:12:04 +0800 [thread overview]
Message-ID: <20240522061204.117421-4-libang.li@antgroup.com> (raw)
In-Reply-To: <20240522061204.117421-1-libang.li@antgroup.com>
Let us simplify the code by update_mmu_tlb_range().
Reviewed-by: Lance Yang <ioworker0@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Bang Li <libang.li@antgroup.com>
---
mm/memory.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index b5453b86ec4b..1297474546d6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4416,7 +4416,6 @@ 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)
@@ -4486,8 +4485,7 @@ 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;
}
--
2.19.1.6.gb485710b
prev parent reply other threads:[~2024-05-22 6:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-22 6:12 [PATCH v4 0/3] Add " Bang Li
2024-05-22 6:12 ` [PATCH v4 1/3] mm: Add update_mmu_tlb_range() Bang Li
2024-05-22 6:12 ` [PATCH v4 2/3] mm: implement update_mmu_tlb() using update_mmu_tlb_range() Bang Li
2024-05-22 6:12 ` Bang Li [this message]
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