Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>
CC:     Song Liu <songliubraving@fb.com>,
        Davidlohr Bueso <dave@stgolabs.net>,
        "Paul E . McKenney" <paulmck@kernel.org>,
        Matthew Wilcox <willy@infradead.org>,
        Laurent Dufour <ldufour@linux.ibm.com>,
        David Rientjes <rientjes@google.com>,
        Axel Rasmussen <axelrasmussen@google.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Rik van Riel <riel@surriel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Michel Lespinasse <michel@lespinasse.org>,
        Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 11/22] vfio: Use vma_lookup() instead of
 find_vma_intersection()
Thread-Topic: [PATCH 11/22] vfio: Use vma_lookup() instead of
 find_vma_intersection()
Thread-Index: AQHXRb3C3iM8lSkalkiXrBF32J/82g==
Date:   Mon, 10 May 2021 16:58:53 +0000
Message-ID: <20210510165839.2692974-12-Liam.Howlett@Oracle.com>
References: <20210510165839.2692974-1-Liam.Howlett@Oracle.com>
In-Reply-To: <20210510165839.2692974-1-Liam.Howlett@Oracle.com>
Accept-Language: en-US
Content-Language: en-US
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 323fba9e-95f3-4980-8adb-08d913d4e4ab
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 May 2021 16:58:53.8808
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: z3F9YDc50ldHa5BEWHtJKXrNvojorqAkGb3kqAPTNJbc+UuAJFxD/isjnEQGh22AtllZIgUcycEUxsaS77662g==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4769
X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9980 signatures=668683
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 phishscore=0
 adultscore=0 bulkscore=0 mlxscore=0 suspectscore=0 malwarescore=0
 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1
 engine=8.12.0-2104190000 definitions=main-2105100114
X-Proofpoint-GUID: xpbc4otmZ6TJ2wXVrlf8SvXKIQ3C6ulV
X-Proofpoint-ORIG-GUID: xpbc4otmZ6TJ2wXVrlf8SvXKIQ3C6ulV
X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9980 signatures=668683
X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 mlxlogscore=999
 mlxscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0
 clxscore=1015 impostorscore=0 phishscore=0 malwarescore=0 adultscore=0
 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000
 definitions=main-2105100114
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

vma_lookup() finds the vma of a specific address with a cleaner
interface and is more readable.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 drivers/vfio/vfio_iommu_type1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type=
1.c
index a0747c35a778..fb695bf0b1c4 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -567,7 +567,7 @@ static int vaddr_get_pfns(struct mm_struct *mm, unsigne=
d long vaddr,
 	vaddr =3D untagged_addr(vaddr);
=20
 retry:
-	vma =3D find_vma_intersection(mm, vaddr, vaddr + 1);
+	vma =3D vma_lookup(mm, vaddr);
=20
 	if (vma && vma->vm_flags & VM_PFNMAP) {
 		ret =3D follow_fault_pfn(vma, mm, vaddr, pfn, prot & IOMMU_WRITE);
--=20
2.30.2