From patchwork Wed May 29 17:43:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amir Goldstein X-Patchwork-Id: 10967477 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D699376 for ; Wed, 29 May 2019 17:44:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB00328910 for ; Wed, 29 May 2019 17:44:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFD0F28936; Wed, 29 May 2019 17:44:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B1C3728922 for ; Wed, 29 May 2019 17:44:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727512AbfE2Rn7 (ORCPT ); Wed, 29 May 2019 13:43:59 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:42154 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727421AbfE2Rnv (ORCPT ); Wed, 29 May 2019 13:43:51 -0400 Received: by mail-wr1-f67.google.com with SMTP id l2so2379570wrb.9; Wed, 29 May 2019 10:43:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=iB8gfO01UWVOvIbXC1SgRvasH8gb3p1b2pcn/FSICGQ=; b=b0k7Uhky+yocLh7DQ5oosoZKI7/cqVQKaU4lK18qqSzkTiwbokIBbcPe+8QkWpRXa8 /SdwMHVqdJZQqTm1Fq1HdJTbttYNaiTx80cqXKZKTcxiAlH7x47tQiZtgM09gOqMUU4c dOG8N4gYpx+jTYmeNj39drvhVoHEmrwIeEvk/HncoD+JQ42uuDcCp/FazXiOnmjbmA0y Qyws70g4mdHlzhfgWhGdgY/dMtF8JmkPZiaOrD7l5uW8qrY61bJjm1qranskdKzNJQKa 7EVtbBYF9DG+lINa//bbPNSWhu3w6ZQMnKrFNN3ZOzT9LC9pbEW5SVAV44T0KHYzwOYb DcMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=iB8gfO01UWVOvIbXC1SgRvasH8gb3p1b2pcn/FSICGQ=; b=kpnlOT/7+5r0Ewo6ThMmk0KjjbrF64+XosP/4yYxy3MBcwI84b3ojsus4EwSTuEwpP u1bnVn7Dl4nqJ7sdB+l304rHwjschwt050RVBblQ//7f7gOts9YezS/VleehbElM8eXL xASgZr/grByxK8LcSJrec+Mcked0v0S+7OB1g4GAPT/BtJRS4t/U/t+cjAbcy8JG/JJE sCqQN5H4uOP5w3BMfWIpSkywjYdmyC7uPUTTjUJLxrh3oWuYVzGvnKcaznLhUc7mkTKp azaA0EdL9HTONDlFnGPiFnuBYUb3/jBPJDDqGWTa7amD7ozMBR/ENlNJzhwZ2bTD+w/l yohQ== X-Gm-Message-State: APjAAAXy8y1Bpvj7ngqIYQ6Y7ynqh8C1p58NCZRHh8QZR8B8ewbe1eFE PSKrGi0A09pA+DWVIglHdoc= X-Google-Smtp-Source: APXvYqwJOJ4izTFnolZmkhfQaBuL6JfpKe4IKnghtgloYRwVTP4nUzDRTpo9aL+/5u/O6Q118FCXnA== X-Received: by 2002:adf:db4c:: with SMTP id f12mr4020367wrj.243.1559151829055; Wed, 29 May 2019 10:43:49 -0700 (PDT) Received: from localhost.localdomain ([5.102.238.208]) by smtp.gmail.com with ESMTPSA id k125sm31702wmb.34.2019.05.29.10.43.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 May 2019 10:43:48 -0700 (PDT) From: Amir Goldstein To: "Darrick J . Wong" Cc: Dave Chinner , Christoph Hellwig , linux-xfs@vger.kernel.org, Olga Kornievskaia , Luis Henriques , Al Viro , linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, ceph-devel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org Subject: [PATCH v3 11/13] fuse: copy_file_range needs to strip setuid bits and update timestamps Date: Wed, 29 May 2019 20:43:15 +0300 Message-Id: <20190529174318.22424-12-amir73il@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190529174318.22424-1-amir73il@gmail.com> References: <20190529174318.22424-1-amir73il@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Like ->write_iter(), we update mtime and strip setuid of dst file before copy and like ->read_iter(), we update atime of src file after copy. Signed-off-by: Amir Goldstein --- fs/fuse/file.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index e03901ae729b..7f33d68f66d9 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -3128,6 +3128,10 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in, inode_lock(inode_out); + err = file_modified(file_out); + if (err) + goto out; + if (fc->writeback_cache) { err = filemap_write_and_wait_range(inode_out->i_mapping, pos_out, pos_out + len); @@ -3169,6 +3173,7 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in, clear_bit(FUSE_I_SIZE_UNSTABLE, &fi_out->state); inode_unlock(inode_out); + file_accessed(file_in); return err; }