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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: da50d69c-f65d-4c20-2554-08da2d6b595a X-MS-Exchange-CrossTenant-originalarrivaltime: 04 May 2022 01:13:50.9708 (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: bfaLCoVigsCy1Ge8ogjoow5F5eu9Kp/7Pq5FDRr0UDrbs5pTdbOvF2Xfb6WjANRsZ0al03eGMqHIfZULtAJKbQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR10MB5830 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.486,18.0.858 definitions=2022-05-03_10:2022-05-02,2022-05-03 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 spamscore=0 malwarescore=0 adultscore=0 suspectscore=0 mlxscore=0 mlxlogscore=618 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205040006 X-Proofpoint-ORIG-GUID: InahW_MdG_7maYl6mr0nPill0sQYit4V X-Proofpoint-GUID: InahW_MdG_7maYl6mr0nPill0sQYit4V 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 d11673080c33..0fdb19d1b48b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2852,7 +2852,7 @@ 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