From patchwork Wed Sep 30 17:26:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Schumaker, Anna" X-Patchwork-Id: 7300731 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 60CCBBF90C for ; Wed, 30 Sep 2015 17:27:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 948AF20658 for ; Wed, 30 Sep 2015 17:27:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 59985206A7 for ; Wed, 30 Sep 2015 17:27:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933054AbbI3R1V (ORCPT ); Wed, 30 Sep 2015 13:27:21 -0400 Received: from mx142.netapp.com ([216.240.21.19]:2009 "EHLO mx142.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932638AbbI3R1O (ORCPT ); Wed, 30 Sep 2015 13:27:14 -0400 X-IronPort-AV: E=Sophos;i="5.17,613,1437462000"; d="scan'208";a="68233459" Received: from vmwexchts04-prd.hq.netapp.com ([10.122.105.32]) by mx142-out.netapp.com with ESMTP; 30 Sep 2015 10:27:09 -0700 Received: from smtp2.corp.netapp.com (10.57.159.114) by VMWEXCHTS04-PRD.hq.netapp.com (10.122.105.32) with Microsoft SMTP Server id 15.0.1104.5; Wed, 30 Sep 2015 10:27:08 -0700 Received: from davros.com ([10.63.231.153]) by smtp2.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id t8UHQuns026290; Wed, 30 Sep 2015 10:27:07 -0700 (PDT) From: Anna Schumaker To: , , , , , , , , , , Subject: [PATCH v5 5/9] vfs: Copy shouldn't forbid ranges inside the same file Date: Wed, 30 Sep 2015 13:26:49 -0400 Message-ID: <1443634014-3026-6-git-send-email-Anna.Schumaker@Netapp.com> X-Mailer: git-send-email 2.6.0 In-Reply-To: <1443634014-3026-1-git-send-email-Anna.Schumaker@Netapp.com> References: <1443634014-3026-1-git-send-email-Anna.Schumaker@Netapp.com> MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@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 This is perfectly valid for BTRFS and XFS, so let's leave this up to filesystems to check. Signed-off-by: Anna Schumaker Reviewed-by: David Sterba Reviewed-by: Darrick J. Wong Signed-off-by: Original Author Signed-off-by: Anna Schumaker --- fs/read_write.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index f3d6c48..8e7cb33 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1371,10 +1371,6 @@ ssize_t vfs_copy_file_range(struct file *file_in, loff_t pos_in, file_in->f_path.mnt != file_out->f_path.mnt) return -EXDEV; - /* forbid ranges in the same file */ - if (inode_in == inode_out) - return -EINVAL; - if (len == 0) return 0;