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McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Liam Howlett Subject: [PATCH 90/94] bpf: Remove VMA linked list Thread-Topic: [PATCH 90/94] bpf: Remove VMA linked list Thread-Index: AQHXPERDlT9aoUT8Uk+Bic1SvYaLig== Date: Wed, 28 Apr 2021 15:36:31 +0000 Message-ID: <20210428153542.2814175-91-Liam.Howlett@Oracle.com> References: <20210428153542.2814175-1-Liam.Howlett@Oracle.com> In-Reply-To: <20210428153542.2814175-1-Liam.Howlett@Oracle.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.30.2 authentication-results: lists.infradead.org; dkim=none (message not signed) header.d=none;lists.infradead.org; dmarc=none action=none header.from=oracle.com; x-originating-ip: [23.233.25.87] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 3ce136f1-9eec-4c49-d896-08d90a5b9a85 x-ms-traffictypediagnostic: CO1PR10MB4548: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2089; 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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: MWHPR10MB1582.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3ce136f1-9eec-4c49-d896-08d90a5b9a85 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Apr 2021 15:36:31.0893 (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: 6Sk8yLp86PKV9ReFj+qTb3tUTDwBEuIX/q7dz1thbjDCoRIZtAWpO7KAPXUv0+H0pVCbzk8zhHITpWfo3n/OpA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4548 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9968 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 adultscore=0 suspectscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2104280101 X-Proofpoint-ORIG-GUID: 4DDIoJufDC4vezTmmwWiuF6Y782vSR83 X-Proofpoint-GUID: 4DDIoJufDC4vezTmmwWiuF6Y782vSR83 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use vma_next() and remove reference to the start of the linked list Signed-off-by: Liam R. Howlett --- kernel/bpf/task_iter.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c index b68cb5d6d6eb..c1c71adc7c1a 100644 --- a/kernel/bpf/task_iter.c +++ b/kernel/bpf/task_iter.c @@ -400,10 +400,10 @@ task_vma_seq_get_next(struct bpf_iter_seq_task_vma_in= fo *info) =20 switch (op) { case task_vma_iter_first_vma: - curr_vma =3D curr_task->mm->mmap; + curr_vma =3D find_vma(curr_task->mm, 0); break; case task_vma_iter_next_vma: - curr_vma =3D curr_vma->vm_next; + curr_vma =3D vma_next(curr_vma->vm_mm, curr_vma); break; case task_vma_iter_find_vma: /* We dropped mmap_lock so it is necessary to use find_vma @@ -417,7 +417,7 @@ task_vma_seq_get_next(struct bpf_iter_seq_task_vma_info= *info) if (curr_vma && curr_vma->vm_start =3D=3D info->prev_vm_start && curr_vma->vm_end =3D=3D info->prev_vm_end) - curr_vma =3D curr_vma->vm_next; + curr_vma =3D vma_next(curr_vma->vm_mm, curr_vma); break; } if (!curr_vma) { --=20 2.30.2