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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 6D445C388F7 for ; Tue, 10 Nov 2020 19:43:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 059A720829 for ; Tue, 10 Nov 2020 19:43:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="x4i/Zs5p" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731350AbgKJTny (ORCPT ); Tue, 10 Nov 2020 14:43:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:36498 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725862AbgKJTnx (ORCPT ); Tue, 10 Nov 2020 14:43:53 -0500 Received: from sol.localdomain (172-10-235-113.lightspeed.sntcca.sbcglobal.net [172.10.235.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 01B1820639; Tue, 10 Nov 2020 19:43:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605037433; bh=sMQ7Ir3OPkhZYJuV4Vzpb2qOUY0DKBK15rYzfrGaIEk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=x4i/Zs5pUHFxZ6aXo3zBSFYOCrWlbTbhTYXg06U8G4o34yFowsuqfCPkDD8uj7cES KZ1XWZ73fsaFBvVFFxe79GmHJc+gbPyubV4PcxjkOrAXWdz+6eO7Szf1hCbTIHqBbL FLwG3W1c+4OTeafCBxRjtksIalZ6ge/OZgcM/QVs= Date: Tue, 10 Nov 2020 11:43:51 -0800 From: Eric Biggers To: Chao Yu Cc: jaegeuk@kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [f2fs-dev] [PATCH v5 1/2] f2fs: avoid unneeded data copy in f2fs_ioc_move_range() Message-ID: References: <20201110012437.26482-1-yuchao0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201110012437.26482-1-yuchao0@huawei.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 10, 2020 at 09:24:36AM +0800, Chao Yu wrote: > Fields in struct f2fs_move_range won't change in f2fs_ioc_move_range(), > let's avoid copying this structure's data to userspace. > > Signed-off-by: Chao Yu > --- Reviewed-by: Eric Biggers