From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2879036-1517590889-2-16626787919481566060 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, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' 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=1517590888; b=NzQ2QADLTqr9lTWpYUsK7W5+r29qfVTWP3QLEp+SSdLu0+6 wxVXRTm+EI0EhXtfTeH0JVZHDiKE5kTD9nMebta5/+JbTxo1+4wMUmaigEr64Xtt 0VAF6qxYAnxMsp9zBKm0J6L0RjUprMKjyMel9cCnCxvTbTZBJVA6DfRw6SDUS2PO MC9L0t/s4seJ+arq0pOCvGdPD9xxxWqZKuEwd1NmnY0pjrGDfTpqO747RvyNuY8N H/hdmHAOj4AVvvz81QLuCAHQi+sn67iJ0bJc8hpzpTHArBubxTo4FOhWSAadISgz +VflcEQt05gjzCE3hj3yL2CgBNzTk1hfDh/Vveg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1517590888; bh=ctuDBGJFdUSplFo0IWwrswZMVf eHpENGeXRctpCAN9U=; b=pbG+HNzJ+jZRYtufd0qNGxJRjyISECIrmGtwTb5721 ar/Z4C1iT6oPhkca1ujueCYhx1P7sne3mC87SFBMYD4EpoOhNIJfJ+sIvvZ/NoG/ Lldmc0aE60fLteqmXwLSbcIWk2t2wqVutGYInGlPjeItSvclngFmvJiVVBmMvfXn XhN3BHRYY7qDL2ggsqtkMeQV3BoqBYpVXZuUVvSDsZCN+hzuW4LaOkgDEKY7E3dY S3ZHL/ZTfoSXZTMYoS+6Xu05efu1lbdc/mbFO6Q9N4CutsLWiqNuy6mtB8IiAj5I OgcrB11sxQO1RTD08FSQ0Hz3nXrxfltL4weuZFybDIBQ== ARC-Authentication-Results: i=1; mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; 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=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; 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=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752696AbeBBRBZ (ORCPT ); Fri, 2 Feb 2018 12:01:25 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:35082 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689AbeBBRBV (ORCPT ); Fri, 2 Feb 2018 12:01:21 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tetsuo Handa , Jan Kara , Michal Hocko , Jan Kara , Sasha Levin Subject: [PATCH 4.4 45/67] quota: Check for register_shrinker() failure. Date: Fri, 2 Feb 2018 17:58:14 +0100 Message-Id: <20180202140820.392100764@linuxfoundation.org> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180202140815.091718203@linuxfoundation.org> References: <20180202140815.091718203@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ 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 Signed-off-by: Greg Kroah-Hartman --- fs/quota/dquot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2919,7 +2919,8 @@ static int __init dquot_init(void) pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld," " %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); - register_shrinker(&dqcache_shrinker); + if (register_shrinker(&dqcache_shrinker)) + panic("Cannot register dquot shrinker"); return 0; }