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Thread-Index: AQHTlMo/geahGlnyhky//14OGaFXAg== Date: Wed, 24 Jan 2018 04:17:29 +0000 Message-ID: <20180124041716.32520-12-alexander.levin@microsoft.com> References: <20180124041716.32520-1-alexander.levin@microsoft.com> In-Reply-To: <20180124041716.32520-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0872;6:wevvfdXA/pWUi6jRmGlgNUlZBQfhXqDVarIQOvL4rcR/DjIrTHzBZJ6FldQD0BXraS0eB6d3v9x5JlBjOZ/nzm1aPY+3bzyIFeDWCajQJ14dUmrSdyatHymG1Pi1BPwwZztNgClEot0mnqH3sQSuBkEbV4YeqVc2ikrxNGu0rBgZ/Jw0ekqVDe6Q7HvhFtNnAl9CETzYxWNajzFVuOe6IUcKlviresKv3DHxCEs6L7obq7METUoOibQwk5pVB8fffHVQMuYxutxQRghdkUrbmRFtacTQuLOH5UAiqxwye3NvX4/GCo898rYcehX+uoGvD6pY24LBsspa5IagtSxyLEyBsbOgCIky5KTSdpKQkXuT6exgslTAzkIWRmou5qGK;5:rdQ/2DkJwgAR5EWT1WPayYiXui/r13FENVaYNH2Qt5ywQIy+9F/TjoteYYKe5ns1hvTWkenyUtJ9Tqu4bNIvStIfFNrXF6QozE/VDiLwaDvArSPBWClElOUK4XfMmIM9ID3TIGS94J3RISlDFRolRGFRNtglkBZVQzwujc371hY=;24:dXHHalTB8a4QP7NzVeAVzqmB9kmDC1JP++i/ysVM1bNa3DniQ3AWJ2yjOeKmtmAAPVn7KWCWCQsjemfYa0aiQhr3N7PliPwscHbHrf1hb6s=;7:gCFakGQ3CURBFMrH8w+kEey6zuEyl7KGEbn0bYx04IBbg1jeiv0olAKOnLCAmy9HM/NlmyXWkz3NRemjrYY6oD5PFJ38jElGEMhbD5yyyTBUAn+NJP2ULfC/nKKDPVyjptF4xsUXpVbq4+OApz885pp0j7PNoOElxU1FzOxSfRAsPpf0dzgKVWGuVuOsBv38+cVCq0uEAUCjAD3cPLGlftkvx4pKBZNVIECobD9X2ZUoQAf9EPJpNECku26pOdR4 x-ms-office365-filtering-correlation-id: ace6bccc-6e87-428e-b34b-08d562e1bf49 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(48565401081)(2017052603307)(7193020);SRVR:DM5PR2101MB0872; x-ms-traffictypediagnostic: DM5PR2101MB0872: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(274141268393343)(89211679590171); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(61425038)(6040501)(2401047)(8121501046)(5005006)(93006095)(93001095)(3002001)(10201501046)(3231046)(2400081)(944501161)(6055026)(61426038)(61427038)(6041288)(20161123564045)(20161123558120)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(6072148)(201708071742011);SRVR:DM5PR2101MB0872;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB0872; x-forefront-prvs: 056297E276 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39380400002)(396003)(366004)(346002)(376002)(39860400002)(199004)(189003)(5660300001)(106356001)(72206003)(3280700002)(5250100002)(66066001)(3660700001)(15650500001)(105586002)(14454004)(86612001)(478600001)(53936002)(2900100001)(10290500003)(2501003)(6512007)(10090500001)(6436002)(6506007)(36756003)(6116002)(3846002)(575784001)(6486002)(2906002)(22452003)(107886003)(316002)(54906003)(4326008)(110136005)(6346003)(81166006)(25786009)(26005)(2950100002)(6666003)(86362001)(1076002)(8676002)(7736002)(81156014)(99286004)(59450400001)(305945005)(76176011)(68736007)(97736004)(102836004)(8936002)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB0872;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: dtxSZkkS+mM8Lrd/+BAXzBBIxAUmtFxXwNYUxVdBbeqYD+zGIbK5HRXfOU6bQ6KnEm4uCWQaXXH0unn7oR16Aw== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: ace6bccc-6e87-428e-b34b-08d562e1bf49 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jan 2018 04:17:29.0436 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0872 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Tetsuo Handa [ Upstream commit 88bc0ede8d35edc969350852894dc864a2dc1859 ] register_shrinker() might return -ENOMEM error since Linux 3.12. Call panic() as with other failure checks in this function if register_shrinker() failed. Fixes: 1d3d4437eae1 ("vmscan: per-node deferred work") Signed-off-by: Tetsuo Handa Cc: Jan Kara Cc: Michal Hocko Reviewed-by: Michal Hocko Signed-off-by: Jan Kara Signed-off-by: Sasha Levin --- fs/quota/dquot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 18aaccb290c2..a9b448e8f92d 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2730,7 +2730,8 @@ static int __init dquot_init(void) printk("Dquot-cache hash table entries: %ld (order %ld, %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); =20 - register_shrinker(&dqcache_shrinker); + if (register_shrinker(&dqcache_shrinker)) + panic("Cannot register dquot shrinker"); =20 return 0; } --=20 2.11.0