From patchwork Mon Dec 3 08:34:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Chinner X-Patchwork-Id: 10708803 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 0DA8B109C for ; Mon, 3 Dec 2018 08:34:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 01B8029A80 for ; Mon, 3 Dec 2018 08:34:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EA3C72AE0D; Mon, 3 Dec 2018 08:34:37 +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=-7.9 required=2.0 tests=BAYES_00,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 A9AC029A80 for ; Mon, 3 Dec 2018 08:34:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725962AbeLCIeg (ORCPT ); Mon, 3 Dec 2018 03:34:36 -0500 Received: from ipmailnode02.adl6.internode.on.net ([150.101.137.148]:36689 "EHLO ipmailnode02.adl6.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725938AbeLCIee (ORCPT ); Mon, 3 Dec 2018 03:34:34 -0500 Received: from ppp59-167-129-252.static.internode.on.net (HELO dastard) ([59.167.129.252]) by ipmail02.adl6.internode.on.net with ESMTP; 03 Dec 2018 19:04:20 +1030 Received: from discord.disaster.area ([192.168.1.111]) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1gTjgJ-0003Pg-7B; Mon, 03 Dec 2018 19:34:19 +1100 Received: from dave by discord.disaster.area with local (Exim 4.91) (envelope-from ) id 1gTjgJ-00006M-5e; Mon, 03 Dec 2018 19:34:19 +1100 From: Dave Chinner To: linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org Cc: olga.kornievskaia@gmail.com, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, ceph-devel@vger.kernel.org, linux-cifs@vger.kernel.org Subject: [PATCH 10/11] vfs: allow generic_copy_file_range to copy across devices Date: Mon, 3 Dec 2018 19:34:15 +1100 Message-Id: <20181203083416.28978-11-david@fromorbit.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181203083416.28978-1-david@fromorbit.com> References: <20181203083416.28978-1-david@fromorbit.com> MIME-Version: 1.0 Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Dave Chinner do_splice_direct() can copy across superblocks without problems. Remove the same superblock restriction on this fallback code. Signed-off-by: Dave Chinner Reviewed-by: Amir Goldstein --- fs/read_write.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/read_write.c b/fs/read_write.c index 4e0666de0d69..b0f231b10836 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -1565,10 +1565,6 @@ ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in, struct file *file_out, loff_t pos_out, size_t len, unsigned int flags) { - /* Temporary, do_splice_direct supports cross-sb copies */ - if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb) - return -EXDEV; - return do_splice_direct(file_in, &pos_in, file_out, &pos_out, len > MAX_RW_COUNT ? MAX_RW_COUNT : len, 0); }