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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: 1485698c-e652-4eed-fc3a-08da53c73597 X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Jun 2022 20:46:58.1135 (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: 2+eb9zqqH3hqrAJMf90EKAdYmL7XlKLoWOxRWHceBpdYHr5Io3Ll/PHi4CfUSr26vA+uWRrXIRNWDuAjultzyQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR10MB3085 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.517,18.0.883 definitions=2022-06-21_09:2022-06-21,2022-06-21 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 mlxscore=0 phishscore=0 adultscore=0 suspectscore=0 mlxlogscore=826 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2206210087 X-Proofpoint-GUID: TAsj1JDzYaWQnJw5bTxC9jJPEfoliMsm X-Proofpoint-ORIG-GUID: TAsj1JDzYaWQnJw5bTxC9jJPEfoliMsm Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Liam R. Howlett" vma_lookup() will walk the vma tree once and not continue to look for the next vma. Since the exact vma is checked below, this is a more optimal way of searching. Link: https://lkml.kernel.org/r/20220504011345.662299-6-Liam.Howlett@oracle= .com Signed-off-by: Liam R. Howlett Reviewed-by: Vlastimil Babka Cc: Catalin Marinas Cc: David Howells Cc: "Matthew Wilcox (Oracle)" Cc: SeongJae Park Cc: Will Deacon Cc: Davidlohr Bueso Signed-off-by: Andrew Morton --- mm/khugepaged.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 16be62d493cd..8dbd68c414d9 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1426,7 +1426,7 @@ static void collapse_and_free_pmd(struct mm_struct *m= m, struct vm_area_struct *v void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr) { unsigned long haddr =3D addr & HPAGE_PMD_MASK; - struct vm_area_struct *vma =3D find_vma(mm, haddr); + struct vm_area_struct *vma =3D vma_lookup(mm, haddr); struct page *hpage; pte_t *start_pte, *pte; pmd_t *pmd; --=20 2.35.1