From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 From: Amir Goldstein 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> In-Reply-To: <20190529174318.22424-1-amir73il@gmail.com> References: <20190529174318.22424-1-amir73il@gmail.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs 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 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; -- 2.17.1