Message ID | 153981626223.5568.3466392756612301245.stgit@magnolia (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[156.151.31.85]) by mx.google.com with ESMTPS id q13-v6si18334990pgq.526.2018.10.17.15.44.31 for <linux-mm@kvack.org> (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 17 Oct 2018 15:44:31 -0700 (PDT) Received-SPF: pass (google.com: domain of darrick.wong@oracle.com designates 156.151.31.85 as permitted sender) client-ip=156.151.31.85; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2018-07-02 header.b=RArLYJOY; spf=pass (google.com: domain of darrick.wong@oracle.com designates 156.151.31.85 as permitted sender) smtp.mailfrom=darrick.wong@oracle.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w9HMiG8f189458; Wed, 17 Oct 2018 22:44:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : from : to : cc : date : message-id : in-reply-to : references : mime-version : content-type : content-transfer-encoding; s=corp-2018-07-02; bh=L870gkqD6S3aDKdn3eAOJVgjX5eONlTDEgfFmDNElAY=; b=RArLYJOYiIMZxhxHnyzcY3Md1C87caBShM3lmFw4onOS4VzfdDv4ZGywN+P9wPFRduIX ue9wgrfPhwWcr6wubJZQB+zkEyQHIrj05yfDDXfgbMfFQnPIpJ8NZNDdpSdmssaV40H8 TZ28H0IyMvYayGDZtMx6gSz84JPOjXhuVhUXAnv75CTgcRxTyFaAekoVLWXRUgiyQWzy uGliU/tn+JlNwQqq7OJM/TUV7qqA0Y6v6M2eOiN1XTOL7IIL2d7q0upsaaD8rFveFmbh y6HKp4gLg4hV1vd1QHEIco4ex/HWWU8D16NgoD4Ct0aQz8FGn3P0C44bLGlgbMMdRLLf gA== Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp2120.oracle.com with ESMTP id 2n39brhnyj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Oct 2018 22:44:30 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w9HMiORQ031959 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Oct 2018 22:44:24 GMT Received: from abhmp0009.oracle.com (abhmp0009.oracle.com [141.146.116.15]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w9HMiOIN014426; Wed, 17 Oct 2018 22:44:24 GMT Received: from localhost (/10.159.132.177) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 17 Oct 2018 15:44:23 -0700 Subject: [PATCH 01/29] vfs: vfs_clone_file_prep_inodes should return EINVAL for a clone from beyond EOF From: "Darrick J. Wong" <darrick.wong@oracle.com> To: david@fromorbit.com, darrick.wong@oracle.com Cc: sandeen@redhat.com, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig <hch@lst.de>, ocfs2-devel@oss.oracle.com Date: Wed, 17 Oct 2018 15:44:22 -0700 Message-ID: <153981626223.5568.3466392756612301245.stgit@magnolia> In-Reply-To: <153981625504.5568.2708520119290577378.stgit@magnolia> References: <153981625504.5568.2708520119290577378.stgit@magnolia> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9049 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=775 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810170188 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: <linux-mm.kvack.org> X-Virus-Scanned: ClamAV using ClamSMTP |
Series |
fs: fixes for serious clone/dedupe problems
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expand
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diff --git a/fs/read_write.c b/fs/read_write.c index 8a2737f0d61d..260797b01851 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1740,10 +1740,7 @@ int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in, if (!S_ISREG(inode_in->i_mode) || !S_ISREG(inode_out->i_mode)) return -EINVAL; - /* Are we going all the way to the end? */ isize = i_size_read(inode_in); - if (isize == 0) - return 0; /* Zero length dedupe exits immediately; reflink goes to EOF. */ if (*len == 0) {