From patchwork Tue Sep 29 18:05:12 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Schumaker, Anna" X-Patchwork-Id: 7289051 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3E9149F39B for ; Tue, 29 Sep 2015 18:06:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D2E4920687 for ; Tue, 29 Sep 2015 18:06:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0623420656 for ; Tue, 29 Sep 2015 18:06:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935106AbbI2SFr (ORCPT ); Tue, 29 Sep 2015 14:05:47 -0400 Received: from mx141.netapp.com ([216.240.21.12]:56103 "EHLO mx141.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935370AbbI2SFg (ORCPT ); Tue, 29 Sep 2015 14:05:36 -0400 X-IronPort-AV: E=Sophos;i="5.17,609,1437462000"; d="scan'208";a="71923842" Received: from vmwexchts02-prd.hq.netapp.com ([10.122.105.23]) by mx141-out.netapp.com with ESMTP; 29 Sep 2015 11:05:36 -0700 Received: from smtp1.corp.netapp.com (10.57.156.124) by VMWEXCHTS02-PRD.hq.netapp.com (10.122.105.23) with Microsoft SMTP Server id 15.0.1104.5; Tue, 29 Sep 2015 11:05:36 -0700 Received: from davros.com ([10.63.231.171]) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id t8TI5EeQ008611; Tue, 29 Sep 2015 11:05:34 -0700 (PDT) From: Anna Schumaker To: , , , , , , , , , , Subject: [PATCH v4 9/9] btrfs: btrfs_copy_file_range() only supports reflinks Date: Tue, 29 Sep 2015 14:05:12 -0400 Message-ID: <1443549913-8091-10-git-send-email-Anna.Schumaker@Netapp.com> X-Mailer: git-send-email 2.5.3 In-Reply-To: <1443549913-8091-1-git-send-email-Anna.Schumaker@Netapp.com> References: <1443549913-8091-1-git-send-email-Anna.Schumaker@Netapp.com> MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Reject copies that don't have the COPY_FR_REFLINK flag set. Signed-off-by: Anna Schumaker Reviewed-by: David Sterba --- fs/btrfs/ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 4311554..2e14b91 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -44,6 +44,7 @@ #include #include #include +#include #include "ctree.h" #include "disk-io.h" #include "transaction.h" @@ -3848,6 +3849,9 @@ ssize_t btrfs_copy_file_range(struct file *file_in, loff_t pos_in, { ssize_t ret; + if (!(flags & COPY_FR_REFLINK)) + return -EOPNOTSUPP; + ret = btrfs_clone_files(file_out, file_in, pos_in, len, pos_out); if (ret == 0) ret = len;