From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C386C433DB for ; Thu, 18 Feb 2021 07:47:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C55C064DE9 for ; Thu, 18 Feb 2021 07:47:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229889AbhBRHqb (ORCPT ); Thu, 18 Feb 2021 02:46:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229720AbhBRHnZ (ORCPT ); Thu, 18 Feb 2021 02:43:25 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68565C061756; Wed, 17 Feb 2021 23:42:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=mZKmyMBoFtbztfFABY/ghh/w9RSwZqEFrZcUD41TwBM=; b=NR2Kuw5GHI8Ltkju70NOS/E+Vc GIsUGB16gfua9MjaNDOuKCVgSYghs6gwn9TXap4xA3BjM1nu3TeJ4irbThgbg/uJ0Srp1Ad6plT9E Am98qX6QIMqBzRTns7b77v+dRhkUDfPwtRdqIajgIq0PiU/NXt+9eHTkX/un/biM0loOmF54E+GlC dqPJ7mhuxfgeSfylc8QeVGyKYWB7fHhq+8uFHaTn/5COe4xRVhYtR3rToFaL4m9mlSv3y4peWyxfy GCJ4NU5xAxiJbXel6/4BEcVPM8Aa5j2tkLPQ8JzZgvtynnAfH49jl/QA1xrPBw0e0Vfj4b+gUVYDV 9GkUN3PA==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lCdwt-001No9-Nr; Thu, 18 Feb 2021 07:42:08 +0000 Date: Thu, 18 Feb 2021 07:42:07 +0000 From: Christoph Hellwig To: Luis Henriques Cc: Amir Goldstein , Jeff Layton , Steve French , Miklos Szeredi , Trond Myklebust , Anna Schumaker , Alexander Viro , "Darrick J. Wong" , Dave Chinner , Greg KH , Nicolas Boichat , Ian Lance Taylor , Luis Lozano , ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org Subject: Re: [PATCH v2] vfs: prevent copy_file_range to copy across devices Message-ID: <20210218074207.GA329605@infradead.org> References: <20210215154317.8590-1-lhenriques@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210215154317.8590-1-lhenriques@suse.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Looks good: Reviewed-by: Christoph Hellwig This whole idea of cross-device copie has always been a horrible idea, and I've been arguing against it since the patches were posted.