From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1483324-1517680905-2-5371257759278842383 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES da, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='com', MailFrom='org', XOriginatingCountry='US' X-Spam-charsets: plain='iso-8859-1' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1517680905; b=Q9lG+gtezNXbkyJXtCE5AAFnNUjKXcpFyMoEg0KpZvzcz0Q 1GV9POY80WyNhns0r+k66P3nR/3f54TAtl7A14SCSQC5Pbe3truPsOhja7YPPLeU X4BIE83SowAr+2/3Bzj/pKNxQ7qOnD+BmFrOapx5SO54ELhXhKuQdPO6rDco4Ljn bdxPnQ0e5Y3PsoFZOilgLPVKG4vpf4TGM8W3nqMe2bipRL2acG555y/9kvm8dlxw hL3Yibe5u1xHO/+SMgiq95OQkIzqbAu9mfAQsY0Ci4dAc9cRjE8h7NbPsgW4IkTn tgsBka7CLmM8nvn8ng/sB1Snyd393eUvL6yimAA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :references:in-reply-to:content-type:content-transfer-encoding :mime-version:sender:list-id; s=arctest; t=1517680905; bh=XOeV4h 95Xfc16d8zy1mIHYK8jCPhCtNFqzL8EkFb7aY=; b=XY6JoC1apvVudcb8IJqX3s 5SY/pIGD7DBGlDbiIZirL/rNrnEpVuEIjc1qHxSLb1maQKrwnjdY66vNk53EPJh8 JeHN6oRJabqFtS7iXiW2JuEc9pIrmt1tl4alA2FJqEKmWlRAfOQKtDAluIRGr1XC jfcZaQfOpUTlW7KceQAOQ8LOc61OEcINopi4xhjUM6cOzKidW5+9A2V9Rc13utud gG9Ot4MgzlT/zh4SEHk27DD8fE5KzJqu6MTSvL0RqT8BT0OMsiGVauKB7+lQG5iE FJjz1yL5yYRGoZYsX6cewwdIxY6EfRmXYJWkltGplwJ5mUpRJ/nKUxP5F+TnoSLg == ARC-Authentication-Results: i=1; mx3.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=microsoft.com header.i=@microsoft.com header.b=KqYQc1RD x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=selector1; dmarc=pass (p=reject,has-list-id=yes,d=none) header.from=microsoft.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=microsoft.com header.result=pass header_is_org_domain=yes Authentication-Results: mx3.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=microsoft.com header.i=@microsoft.com header.b=KqYQc1RD x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=selector1; dmarc=pass (p=reject,has-list-id=yes,d=none) header.from=microsoft.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=microsoft.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752934AbeBCSBe (ORCPT ); Sat, 3 Feb 2018 13:01:34 -0500 Received: from mail-cys01nam02on0123.outbound.protection.outlook.com ([104.47.37.123]:2624 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752538AbeBCSAu (ORCPT ); Sat, 3 Feb 2018 13:00:50 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Al Viro , Sasha Levin Subject: [PATCH AUTOSEL for 4.14 021/110] sget(): handle failures of register_shrinker() Thread-Topic: [PATCH AUTOSEL for 4.14 021/110] sget(): handle failures of register_shrinker() Thread-Index: AQHTnRjl7w2OjzjZok+g4LG8ttZmPA== Date: Sat, 3 Feb 2018 18:00:37 +0000 Message-ID: <20180203180015.29073-21-alexander.levin@microsoft.com> References: <20180203180015.29073-1-alexander.levin@microsoft.com> In-Reply-To: <20180203180015.29073-1-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;BL0PR2101MB1090;7:zDPuC+fDnJT+drCw1tJ4dA+Ba94jADoXpAiC1EwoepydH+nF0/foE2cxq9gve2PtqJJGXT4Wh0oKZ9wQVbHokUU3DSpUyp7IYYMtbBl0GUD7/2Ec5HHO+Z+B4dZG83CpjJ3p4EhM3c6sGcxl6JEGRKDp1di21dASiff4lcpdjrl8bX/8EieeKaj4fiNkFqviNcXH3rWnBisF2/e5Mj0v8zpCeQQazZqjTjWELELbqhgMqesEtV4ipn9cdTfsJ8i1 x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 2cb91b3a-7aa0-4a2b-331a-08d56b300992 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(3008032)(2017052603307)(7193020);SRVR:BL0PR2101MB1090; x-ms-traffictypediagnostic: BL0PR2101MB1090: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(61425038)(6040501)(2401047)(5005006)(8121501046)(3002001)(10201501046)(3231101)(2400082)(944501161)(93006095)(93001095)(6055026)(61426038)(61427038)(6041288)(20161123562045)(20161123560045)(20161123558120)(20161123564045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(6072148)(201708071742011);SRVR:BL0PR2101MB1090;BCL:0;PCL:0;RULEID:;SRVR:BL0PR2101MB1090; x-forefront-prvs: 05724A8921 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(376002)(366004)(396003)(39380400002)(39860400002)(346002)(199004)(189003)(2900100001)(5660300001)(316002)(25786009)(4326008)(14454004)(2950100002)(478600001)(575784001)(107886003)(72206003)(6666003)(22452003)(10290500003)(186003)(3660700001)(86612001)(76176011)(86362001)(53936002)(3280700002)(106356001)(6436002)(6486002)(59450400001)(81166006)(81156014)(2501003)(6506007)(97736004)(26005)(7736002)(6512007)(6346003)(102836004)(105586002)(68736007)(8936002)(5250100002)(305945005)(36756003)(1076002)(6116002)(3846002)(8676002)(110136005)(66066001)(54906003)(2906002)(10090500001)(99286004)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:BL0PR2101MB1090;H:BL0PR2101MB1027.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: p4Kez6JWTLlrn9Eq2NodqPfcW1tp++9xxa9hRgIsPOYN/TKxyPLYy5akirLw/yFylTUSThOTHnyiNSyCHDEoyA== 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: 2cb91b3a-7aa0-4a2b-331a-08d56b300992 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Feb 2018 18:00:37.5659 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR2101MB1090 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: Al Viro [ Upstream commit 9ee332d99e4d5a97548943b81c54668450ce641b ] Signed-off-by: Al Viro Signed-off-by: Sasha Levin --- fs/super.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/super.c b/fs/super.c index 994db21f59bf..79d7fc5e0ddd 100644 --- a/fs/super.c +++ b/fs/super.c @@ -522,7 +522,11 @@ retry: hlist_add_head(&s->s_instances, &type->fs_supers); spin_unlock(&sb_lock); get_filesystem(type); - register_shrinker(&s->s_shrink); + err =3D register_shrinker(&s->s_shrink); + if (err) { + deactivate_locked_super(s); + s =3D ERR_PTR(err); + } return s; } =20 --=20 2.11.0