From nobody Fri Dec 19 17:15:19 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C271D268FF2 for ; Mon, 19 May 2025 07:49:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747640961; cv=none; b=koC/Zjl7bZWU1r8ba00OkFi+2EA0Nnum5XnsPPFXA/VlPoAkPTVKPRfYyIiOmYlEfKRd68ANZvt4dP6WQfzAfTai67BOdyUVlzeY8/lzA+9YpRQTl2jvz/6qH6qhHOrTYhQXxqu4Flu2wC/DwQXYQuop4FgHuyybTKNSATMyTmE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747640961; c=relaxed/simple; bh=FPC3c1UtZeXKvhNu9xElMb/9OS9+eIdnWELS1tZE6Ww=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=cpboKvOdArL/+RbwRHNefL+c5mctTQEXG/u6AA2txlDkSoq2PKEjIFOnQsuEJzCrPhaFHIlFopzdqLmSVTZYEeN5G9CLitY8eb7N5jy7dSJeToWwStgaz+mP9GRLyu4ukMhE9VdKALKGtA7MOtYHxyj0s1LNtrXLobx9K2/M4IA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 08DE914BF; Mon, 19 May 2025 00:49:04 -0700 (PDT) Received: from K4MQJ0H1H2.blr.arm.com (unknown [10.164.18.48]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5ADCB3F6A8; Mon, 19 May 2025 00:49:10 -0700 (PDT) From: Dev Jain To: akpm@linux-foundation.org Cc: ryan.roberts@arm.com, david@redhat.com, willy@infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, catalin.marinas@arm.com, will@kernel.org, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, vbabka@suse.cz, jannh@google.com, anshuman.khandual@arm.com, peterx@redhat.com, joey.gouly@arm.com, ioworker0@gmail.com, baohua@kernel.org, kevin.brodsky@arm.com, quic_zhenhuah@quicinc.com, christophe.leroy@csgroup.eu, yangyicong@hisilicon.com, linux-arm-kernel@lists.infradead.org, hughd@google.com, yang@os.amperecomputing.com, ziy@nvidia.com, Dev Jain Subject: [PATCH v3 5/5] arm64: Add batched version of ptep_modify_prot_commit Date: Mon, 19 May 2025 13:18:24 +0530 Message-Id: <20250519074824.42909-6-dev.jain@arm.com> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20250519074824.42909-1-dev.jain@arm.com> References: <20250519074824.42909-1-dev.jain@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Override the generic definition to simply use set_ptes() to map the new ptes into the pagetable. Signed-off-by: Dev Jain --- arch/arm64/include/asm/pgtable.h | 5 +++++ arch/arm64/mm/mmu.c | 9 ++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgta= ble.h index 8872ea5f0642..0b13ca38f80c 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -1558,6 +1558,11 @@ extern pte_t modify_prot_start_ptes(struct vm_area_s= truct *vma, unsigned long addr, pte_t *ptep, unsigned int nr); =20 +#define modify_prot_commit_ptes modify_prot_commit_ptes +extern void modify_prot_commit_ptes(struct vm_area_struct *vma, unsigned l= ong addr, + pte_t *ptep, pte_t old_pte, pte_t pte, + unsigned int nr); + #ifdef CONFIG_ARM64_CONTPTE =20 /* diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index fe60be8774f4..5f04bcdcd946 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1543,10 +1543,17 @@ pte_t ptep_modify_prot_start(struct vm_area_struct = *vma, unsigned long addr, pte return modify_prot_start_ptes(vma, addr, ptep, 1); } =20 +void modify_prot_commit_ptes(struct vm_area_struct *vma, unsigned long add= r, + pte_t *ptep, pte_t old_pte, pte_t pte, + unsigned int nr) +{ + set_ptes(vma->vm_mm, addr, ptep, pte, nr); +} + void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long add= r, pte_t *ptep, pte_t old_pte, pte_t pte) { - set_pte_at(vma->vm_mm, addr, ptep, pte); + modify_prot_commit_ptes(vma, addr, ptep, old_pte, pte, 1); } =20 /* --=20 2.30.2