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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: 635a6839-58f8-4a71-a572-08da2d6b5d9b X-MS-Exchange-CrossTenant-originalarrivaltime: 04 May 2022 01:13:56.3298 (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: 0/WRgpDOOq67D/lbIZDVh3drXqgx04Co3KUmnrgjwpl8sSBKB48lthLms1f/LMMjTsyNZ4k8YsGElgqX8YnU0Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR10MB3728 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 spamscore=0 mlxscore=0 adultscore=0 bulkscore=0 suspectscore=0 mlxlogscore=999 malwarescore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205040006 X-Proofpoint-GUID: Ach_sudxJLWpCdwCjsro7n_ZnLKwXTAY X-Proofpoint-ORIG-GUID: Ach_sudxJLWpCdwCjsro7n_ZnLKwXTAY Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Matthew Wilcox (Oracle)" Use the VMA iterator instead. Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Liam R. Howlett Acked-by: Vlastimil Babka --- arch/x86/entry/vdso/vma.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index 235a5794296a..3883da001c62 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -127,17 +127,17 @@ int vdso_join_timens(struct task_struct *task, struct= time_namespace *ns) { struct mm_struct *mm =3D task->mm; struct vm_area_struct *vma; + VMA_ITERATOR(vmi, mm, 0); =20 mmap_read_lock(mm); - - for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) { + for_each_vma(vmi, vma) { unsigned long size =3D vma->vm_end - vma->vm_start; =20 if (vma_is_special_mapping(vma, &vvar_mapping)) zap_page_range(vma, vma->vm_start, size); } - mmap_read_unlock(mm); + return 0; } #else @@ -354,6 +354,7 @@ int map_vdso_once(const struct vdso_image *image, unsig= ned long addr) { struct mm_struct *mm =3D current->mm; struct vm_area_struct *vma; + VMA_ITERATOR(vmi, mm, 0); =20 mmap_write_lock(mm); /* @@ -363,7 +364,7 @@ int map_vdso_once(const struct vdso_image *image, unsig= ned long addr) * We could search vma near context.vdso, but it's a slowpath, * so let's explicitly check all VMAs to be completely sure. */ - for (vma =3D mm->mmap; vma; vma =3D vma->vm_next) { + for_each_vma(vmi, vma) { if (vma_is_special_mapping(vma, &vdso_mapping) || vma_is_special_mapping(vma, &vvar_mapping)) { mmap_write_unlock(mm); --=20 2.35.1