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a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector1-fb-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qynf98ZDwvcznbRqFMYmPrHxCPwYBWB3HgqqCZNwtf0=; b=fOD2oBOxSXNH1+ai1E86WzpIj55PPGwdBOGPiwRYmqJc8Ym2IJBaB89wbkOhlWV+rXScOrOilSATj7a3zK2HfivZmFm5t09OlR4gsIFlORFyPFcmmgCTbQxlMOF+F5wqCiK0MptuN77BN2hNAV/QmGAqJdRVwwZT118S8vwwxi8= Received: from BYAPR15MB2631.namprd15.prod.outlook.com (20.179.156.24) by BYAPR15MB3335.namprd15.prod.outlook.com (20.179.58.141) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1878.21; Wed, 15 May 2019 17:00:07 +0000 Received: from BYAPR15MB2631.namprd15.prod.outlook.com ([fe80::d4f6:b485:69ee:fd9a]) by BYAPR15MB2631.namprd15.prod.outlook.com ([fe80::d4f6:b485:69ee:fd9a%7]) with mapi id 15.20.1878.024; Wed, 15 May 2019 17:00:07 +0000 From: Roman Gushchin To: Konstantin Khlebnikov CC: "linux-mm@kvack.org" , Andrew Morton , "linux-kernel@vger.kernel.org" , Cyrill Gorcunov , "Kirill Tkhai" , Al Viro Subject: Re: [PATCH 5/5] proc: use down_read_killable for /proc/pid/map_files Thread-Topic: [PATCH 5/5] proc: use down_read_killable for /proc/pid/map_files Thread-Index: AQHVCvoDISknOLVQ6k6bg7diwORU3aZsaUuA Date: Wed, 15 May 2019 17:00:07 +0000 Message-ID: <20190515165956.GA7845@castle> References: <155790967258.1319.11531787078240675602.stgit@buzz> <155790968346.1319.5754627575519802426.stgit@buzz> In-Reply-To: <155790968346.1319.5754627575519802426.stgit@buzz> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR04CA0104.namprd04.prod.outlook.com (2603:10b6:301:3a::45) To BYAPR15MB2631.namprd15.prod.outlook.com (2603:10b6:a03:152::24) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c090:180::779] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 92b3c1fb-46a7-414f-fff4-08d6d956c863 x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(2017052603328)(7193020);SRVR:BYAPR15MB3335; 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charset="us-ascii" Content-ID: <6D5C73FF056CC549AE708161877DEBF7@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 92b3c1fb-46a7-414f-fff4-08d6d956c863 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 May 2019 17:00:07.5053 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB3335 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-15_11:,, signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, May 15, 2019 at 11:41:23AM +0300, Konstantin Khlebnikov wrote: > It seems ->d_revalidate() could return any error (except ECHILD) to > abort validation and pass error as result of lookup sequence. >=20 > Signed-off-by: Konstantin Khlebnikov > --- > fs/proc/base.c | 27 +++++++++++++++++++++------ > 1 file changed, 21 insertions(+), 6 deletions(-) Hi! The series looks good to me! Reviewed-by: Roman Gushchin for all patches in the set. The only thing, you need to add a bit more detailed commit messages to patches 2 and 3. Thanks!