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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR10MB3022.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 548376a4-6b19-4615-c0b4-08da27965b38 X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Apr 2022 15:06:34.8651 (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: yPigJa/3ANdv8AOo6LzDwA1F9bUZrfAp4rfYP6c+yfIr2thTkCbG8lN7uqPlG2dQfaUe1khCcUIdqGm5ieJ5eQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR10MB4679 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.486,18.0.858 definitions=2022-04-26_04:2022-04-26,2022-04-26 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 mlxlogscore=616 mlxscore=0 suspectscore=0 malwarescore=0 spamscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204260096 X-Proofpoint-GUID: 0elHCghqZOJ9ZixBeNSoqthJpWFfZrz- X-Proofpoint-ORIG-GUID: 0elHCghqZOJ9ZixBeNSoqthJpWFfZrz- Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Liam R. Howlett" Use vma_lookup() to walk the tree to the start value requested. If the vma at the start does not match, then the answer is NULL and there is no need to look at the next vma the way that find_vma() would. Signed-off-by: Liam R. Howlett Reviewed-by: Vlastimil Babka --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 8cafafaae5a1..02bd4390ca7b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2857,7 +2857,7 @@ static inline unsigned long vma_pages(struct vm_area_= struct *vma) static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm, unsigned long vm_start, unsigned long vm_end) { - struct vm_area_struct *vma =3D find_vma(mm, vm_start); + struct vm_area_struct *vma =3D vma_lookup(mm, vm_start); =20 if (vma && (vma->vm_start !=3D vm_start || vma->vm_end !=3D vm_end)) vma =3D NULL; --=20 2.35.1