From patchwork Wed May 29 17:43:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amir Goldstein X-Patchwork-Id: 10967453 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 5D7DF18A6 for ; Wed, 29 May 2019 17:43:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 517CF28451 for ; Wed, 29 May 2019 17:43:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4FBC0286E4; Wed, 29 May 2019 17:43:56 +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 E17E22856E for ; Wed, 29 May 2019 17:43:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727468AbfE2Rnx (ORCPT ); Wed, 29 May 2019 13:43:53 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:42156 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726018AbfE2Rnw (ORCPT ); Wed, 29 May 2019 13:43:52 -0400 Received: by mail-wr1-f68.google.com with SMTP id l2so2379619wrb.9; Wed, 29 May 2019 10:43:51 -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=HN28jzdWIDmYfqKHB1OqlcDa2tkQLMvz+g74LeD+kio=; b=JUf3gpx4X+xBASgixo3psABkDGhXiKV7Lv6aCmi3cIY5g3UvcqkbbvIo4LEBHHlOcM 47HvlL4K1Cfr3ZCYRlFlQMk169fxuc4V9OE11x9tSy5YsvifN+2+3lazi2lND22my4/4 vd26PGS+5Js9jWQid+RCNzQaf/Cxq14XwTGKpzF/Q1Bka7r0NBU4GOkAB1YemhBS82Bd Lb9aAjs9AjZ7/j02/iDPiRAipCy9DyKOAKm748nAnJr525j6GQIkn1vJLKJPSxueSVCR /PoGsscocZt9StBbSuN5VS082vCWGMzYH/2Eb9v2UTVF6paGYYjXEs0W0yHzHIGdVPtu C46w== 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=HN28jzdWIDmYfqKHB1OqlcDa2tkQLMvz+g74LeD+kio=; b=MS3J53CKNFFz2rSBpksU06XDAGDj5zEwBl97iWik1SdEGEpAu2hHiKo+yeEmArIUdH lVEdbH+QoprW0X1IMQcPfUtTLbUfKvZEyepItdQ6QjxR6pUsEu0l0We+CMDP4UeQeOxb kTHBgPvlK9+tKT5LA4QixKCRxlZNGa6TjE4ZXh7uVD+wiALxQLko4Dde1GHWKU7lx/vp WhMoxl6fMWMFPIveljlgAIdfjq2zvi8GpNgM/V0ksTdqUzcixcWRMogRtSZl0/SOYpPI gAf8s+A2QWO4oqNnn/WLPUeXtLXSkF+RtITh+807gT7Pfn16DXb+jUsKAvb1bvl0TlRT 0bsA== X-Gm-Message-State: APjAAAVTvoCspflraceM8mhM/vJyv87EVG6nZE5hambx2Ehn6+94HYzl B60kVO5j7/HCi8OZDQrjpBk= X-Google-Smtp-Source: APXvYqy4vphWl+uJOQFfpvp7RUdNvXC3EMyYKCKKMmpEfRH0EaEwUWjRn9WIuethzwglftoWN3AHHA== X-Received: by 2002:a5d:54cc:: with SMTP id x12mr35442527wrv.303.1559151830843; Wed, 29 May 2019 10:43:50 -0700 (PDT) Received: from localhost.localdomain ([5.102.238.208]) by smtp.gmail.com with ESMTPSA id k125sm31702wmb.34.2019.05.29.10.43.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 May 2019 10:43:50 -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 12/13] nfs: copy_file_range needs to strip setuid bits and update timestamps Date: Wed, 29 May 2019 20:43:16 +0300 Message-Id: <20190529174318.22424-13-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-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@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/nfs/nfs42proc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 5196bfa7894d..c37a8e5116c6 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -345,10 +345,13 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src, do { inode_lock(file_inode(dst)); - err = _nfs42_proc_copy(src, src_lock, - dst, dst_lock, - &args, &res); + err = file_modified(dst); + if (!err) + err = _nfs42_proc_copy(src, src_lock, + dst, dst_lock, + &args, &res); inode_unlock(file_inode(dst)); + file_accessed(src); if (err >= 0) break;