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Tue, 17 Aug 2021 15:47:53 +0000 From: Liam Howlett To: "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Andrew Morton CC: Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Liam Howlett Subject: [PATCH v2 34/61] fs/coredump: Use maple tree iterators in place of linked list Thread-Topic: [PATCH v2 34/61] fs/coredump: Use maple tree iterators in place of linked list Thread-Index: AQHXk38rvOT9QIVrm0y+o6GXDU3fpg== Date: Tue, 17 Aug 2021 15:47:22 +0000 Message-ID: <20210817154651.1570984-35-Liam.Howlett@oracle.com> References: <20210817154651.1570984-1-Liam.Howlett@oracle.com> In-Reply-To: <20210817154651.1570984-1-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-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 20963f5b-9cef-4b6f-d82b-08d961965ff6 x-ms-traffictypediagnostic: DM6PR10MB4236: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:3968; 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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: DM6PR10MB4380.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 20963f5b-9cef-4b6f-d82b-08d961965ff6 X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Aug 2021 15:47:22.7812 (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: KDm86Pl1ZAxPt25+oDDeYU57nyEMeab+FAJW21Q3Ib+Z46mXYaodIcRbpWt5QH2o3d4udLPo0tVEnge9j7y/Bw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR10MB4236 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10079 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 adultscore=0 suspectscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108170097 X-Proofpoint-GUID: 8QmC_YZ_hzdGrDg6VhXp1MBPt3azgQPB X-Proofpoint-ORIG-GUID: 8QmC_YZ_hzdGrDg6VhXp1MBPt3azgQPB Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Liam R. Howlett" Signed-off-by: Liam R. Howlett --- fs/coredump.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/coredump.c b/fs/coredump.c index 4b3c75732c97..584a9742aa27 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -1063,10 +1063,10 @@ static unsigned long vma_dump_size(struct vm_area_s= truct *vma, return vma->vm_end - vma->vm_start; } =20 -static struct vm_area_struct *first_vma(struct task_struct *tsk, +static struct vm_area_struct *first_vma(struct mm_struct *mm, struct vm_area_struct *gate_vma) { - struct vm_area_struct *ret =3D tsk->mm->mmap; + struct vm_area_struct *ret =3D find_vma(mm, 0); =20 if (ret) return ret; @@ -1077,12 +1077,13 @@ static struct vm_area_struct *first_vma(struct task= _struct *tsk, * Helper function for iterating across a vma list. It ensures that the c= aller * will visit `gate_vma' prior to terminating the search. */ -static struct vm_area_struct *next_vma(struct vm_area_struct *this_vma, +static struct vm_area_struct *next_vma(struct mm_struct *mm, + struct vm_area_struct *this_vma, struct vm_area_struct *gate_vma) { struct vm_area_struct *ret; =20 - ret =3D this_vma->vm_next; + ret =3D vma_next(mm, this_vma); if (ret) return ret; if (this_vma =3D=3D gate_vma) @@ -1120,8 +1121,8 @@ int dump_vma_snapshot(struct coredump_params *cprm, i= nt *vma_count, return -ENOMEM; } =20 - for (i =3D 0, vma =3D first_vma(current, gate_vma); vma !=3D NULL; - vma =3D next_vma(vma, gate_vma), i++) { + for (i =3D 0, vma =3D first_vma(mm, gate_vma); vma !=3D NULL; + vma =3D next_vma(mm, vma, gate_vma), i++) { struct core_vma_metadata *m =3D (*vma_meta) + i; =20 m->start =3D vma->vm_start; --=20 2.30.2