From patchwork Mon Oct 29 17:40:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olga Kornievskaia X-Patchwork-Id: 990464 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Ye7eYx1A"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 42kMN50bhPz9s3q for ; Tue, 30 Oct 2018 04:41:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728143AbeJ3Ca7 (ORCPT ); Mon, 29 Oct 2018 22:30:59 -0400 Received: from mail-qt1-f196.google.com ([209.85.160.196]:33945 "EHLO mail-qt1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728129AbeJ3Ca6 (ORCPT ); Mon, 29 Oct 2018 22:30:58 -0400 Received: by mail-qt1-f196.google.com with SMTP id z2-v6so10273762qts.1; Mon, 29 Oct 2018 10:41:22 -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=lJ465V0VE4A4er/zz+WqgIGq+JkN4aV47yHUTEvfu9c=; b=Ye7eYx1Au4cdqnNXHvvwHa+1lgk+EnVVJwLEr8erT3gHOuXgTwF77SnQzObuQrx412 R/szSCTUfPonYIBqSIup6UepwImG4tKABhX5QhOYE92a0b1o8rVCKLMvi9Qchl3Pdk+B HscHNA1FL76cB5+qqQg/pYcVRJz7pEC8+i5RWcnxTcNC7321TK50HR+I8YRh8oSs5utZ N8QlUm8D8uEclzofWs4wTiASq3i47zZO21hENmnL+YNBauncr6+CvXdPZW1OcxbYowV/ 4/kwu/XLBHHz9+dDLksuptnd8L9Hx1Kn1MSWf6HRzVPJq3/Q/jLSN2hg205k3zSeXHFj 8SQg== 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=lJ465V0VE4A4er/zz+WqgIGq+JkN4aV47yHUTEvfu9c=; b=eN0x1u7EbPNC3OhBL9rWiAkejroEoTz6Ys6IhSvzUIEp3qxJju+u0mcZjAAEfLm76Q yGwll1pc/tvzbDsc0nOPY/x4YD9ag737mCO9YBAWM1Wsm++DjsPDkI6w6CCptl8VYw9S JpF39/S9I46y50JtNjzrk+hPac+c+2qaXmdWSVsDxpfgKidWzWeiG6ZqbZc0jriHl8Zz h86EIPkboaG77EAn322aDXXn7xXBHujpmFN6zGeXoQtOEXvhYjDFGYBtZkCJZMoG0TnU H/7aYAiD44JgHQ+oZeDPnctxJyCzW1NwDduMZasdYr83oTjYJ7vZIB/6smjMDJRjo2ts 8Kow== X-Gm-Message-State: AGRZ1gJ3/ZwknoWytXXAu8xzevEqx0oAj/BzX76Zs09Jqet05Y3k4ZU9 KqLgsLJ6V0saW5Z4uaZazts= X-Google-Smtp-Source: AJdET5eFCpUGEyckPjYWnyhRWKOxDc75uzQ9Wq6sKZOhIFw5S6OOA7GulYt29Ip3r5r+QpYhQhGmuw== X-Received: by 2002:ac8:2729:: with SMTP id g38-v6mr14148691qtg.168.1540834881642; Mon, 29 Oct 2018 10:41:21 -0700 (PDT) Received: from Olgas-MBP-195.attlocal.net (172-10-226-31.lightspeed.livnmi.sbcglobal.net. [172.10.226.31]) by smtp.gmail.com with ESMTPSA id n190-v6sm13148929qkb.29.2018.10.29.10.41.20 (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 29 Oct 2018 10:41:21 -0700 (PDT) From: Olga Kornievskaia To: trond.myklebust@hammerspace.com, anna.schumaker@netapp.com, viro@zeniv.linux.org.uk, smfrench@gmail.com, miklos@szeredi.hu Cc: linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-cifs@vger.kernel.org, linux-unionfs@vger.kernel.org, linux-man@vger.kernel.org Subject: [PATCH v5 12/12] NFS: replace cross device check in copy_file_range Date: Mon, 29 Oct 2018 13:40:59 -0400 Message-Id: <20181029174059.38326-14-olga.kornievskaia@gmail.com> X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20181029174059.38326-1-olga.kornievskaia@gmail.com> References: <20181029174059.38326-1-olga.kornievskaia@gmail.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org From: Olga Kornievskaia Add a check to disallow cross file systems copy offload, both files are expected to be of NFS4.2+ type. Reviewed-by: Jeff Layton Reviewed-by: Matthew Wilcox Signed-off-by: Olga Kornievskaia --- fs/nfs/nfs4file.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 989f174..fde4465 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -138,11 +138,16 @@ static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in, struct nl4_server *nss = NULL; nfs4_stateid *cnrs = NULL; ssize_t ret; + struct nfs_client *c_in; if (pos_in >= i_size_read(file_inode(file_in))) return -EINVAL; - if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) + if (file_in->f_op != &nfs4_file_operations) + return -EXDEV; + + c_in = (NFS_SERVER(file_inode(file_in)))->nfs_client; + if (c_in->cl_minorversion < 2) return -EXDEV; if (file_inode(file_in) == file_inode(file_out))