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McKenney" , Matthew Wilcox , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra Subject: [PATCH v3 27/66] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb Thread-Topic: [PATCH v3 27/66] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb Thread-Index: AQHXuYifpOSQiqS9hkiZRt2nU3d6zg== Date: Tue, 5 Oct 2021 01:30:47 +0000 Message-ID: <20211005012959.1110504-28-Liam.Howlett@oracle.com> References: <20211005012959.1110504-1-Liam.Howlett@oracle.com> In-Reply-To: <20211005012959.1110504-1-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: 0021da90-3b3b-45e0-e3b4-08d9879fc270 x-ms-traffictypediagnostic: BLAPR10MB5044: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7219; 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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: BL0PR10MB3011.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0021da90-3b3b-45e0-e3b4-08d9879fc270 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Oct 2021 01:30:48.0284 (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: hC/NHZfMnMxpuuzy3AjmWOYj7cZC0Tw/ibCG22J8YqItEF6JEKKlnGaEWtyUBweSx5ngHSxZLP/6YIL796zOQw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLAPR10MB5044 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10127 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 adultscore=0 phishscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110050007 X-Proofpoint-ORIG-GUID: -ggmDeG0IGUrcWjpFC8maeKrTmZcsgKA X-Proofpoint-GUID: -ggmDeG0IGUrcWjpFC8maeKrTmZcsgKA Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Liam R. Howlett" Start using the maple tree Signed-off-by: Liam R. Howlett --- arch/powerpc/mm/book3s32/tlb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.= c index 19f0ef950d77..2c8b991de8e8 100644 --- a/arch/powerpc/mm/book3s32/tlb.c +++ b/arch/powerpc/mm/book3s32/tlb.c @@ -81,6 +81,7 @@ EXPORT_SYMBOL(hash__flush_range); void hash__flush_tlb_mm(struct mm_struct *mm) { struct vm_area_struct *mp; + MA_STATE(mas, &mm->mm_mt, 0, 0); =20 /* * It is safe to go down the mm's list of vmas when called @@ -88,8 +89,10 @@ void hash__flush_tlb_mm(struct mm_struct *mm) * unmap_region or exit_mmap, but not from vmtruncate on SMP - * but it seems dup_mmap is the only SMP case which gets here. */ - for (mp =3D mm->mmap; mp !=3D NULL; mp =3D mp->vm_next) + rcu_read_lock(); + mas_for_each(&mas, mp, ULONG_MAX) hash__flush_range(mp->vm_mm, mp->vm_start, mp->vm_end); + rcu_read_unlock(); } EXPORT_SYMBOL(hash__flush_tlb_mm); =20 --=20 2.30.2