Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp5205455rwd; Tue, 23 May 2023 20:45:39 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4QDjiWvjLSyneoiFSj6uiIUO4g88NY/h4V5Lxp8ilfZih8GZN4VJvN26Rq9o2pgKdqB/RA X-Received: by 2002:a05:6a20:42a2:b0:10b:8e96:561 with SMTP id o34-20020a056a2042a200b0010b8e960561mr9446656pzj.62.1684899939317; Tue, 23 May 2023 20:45:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684899939; cv=none; d=google.com; s=arc-20160816; b=WD/42oZpwXEujlr8StyB9aRis2bdTixa8NOFEUw76IaLGAkss+IYnd2OQjMSx8bJnY A40e+0EdWSv8LhJ2KfCsPNFTrLgMGUNzSJAn1i15c22A5GLjNcCWciec7U1zExV6mlK6 y+zj7S5M0AQPr9x1zO0boim6jgeHHnG81fwWg5mydgAYqAZV4R+FwoHerPwSNU2ZNajZ 4nCnZmr8TpXVUWF2192DdBXALxLztYwNsH4mdvNpnxtQE5BVVFz7cMdYMI2D8jOuwqp5 wl2Q51feDjD2QCTnRP8TnaWC7eTx+fjmlfSU4kwK6a8g/p2Al2/OfZZqsNqqnn7A4GiD ISvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to:from :references:cc:to:content-language:subject:user-agent:mime-version :date:message-id:dkim-signature; bh=mY8nBdi7dpGnGi1i3UayNuIVlU6vdOn+YOiK4ER+Eew=; b=wTW27Y3Q+MmGwOc/vqlToeSh9Fwe5f4jTG5Gxq53cmWfmam41SEK6F3BRyQHgmGdfK G0Q2s/p6FVwLmWPb6AwsS8wcDCbB72MsYQ8haLQURslGcAuMZuFGytgk0Zv+AfOxVbEJ G/luQzdB1EQ7tsLnkYeZANZDjPlpSFagmo1d+LTnsMGtK1b67nMQgKcWx+JP7OakET7R DEAMsQzOl1orA0Kvw5UviP23aySLSMxccP0P0s1Xr8kDqDNVfDAb4yZXUwdoeS1n18hA TZnXDRbLJ/2ErawTm6uCTgqHUT2zGEfruDFsvjpD6zt/Q5AMM8qGN/Fvi6nO4zzjXSaE z38Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=nTS9dwJz; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id t65-20020a637844000000b0051b749eb332si6649069pgc.248.2023.05.23.20.45.27; Tue, 23 May 2023 20:45:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=nTS9dwJz; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239220AbjEXDBX (ORCPT + 99 others); Tue, 23 May 2023 23:01:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233836AbjEXDBS (ORCPT ); Tue, 23 May 2023 23:01:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6A89139; Tue, 23 May 2023 20:01:16 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 271D16381E; Wed, 24 May 2023 03:01:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A927DC433EF; Wed, 24 May 2023 03:01:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684897275; bh=sp/Ume+GBHLoTEpuvlf0XK+PE025ykhly6ak9SBq7zc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=nTS9dwJzGsrZhhAO/qQVIjlko93ei9TBykrirrxG88FPV5qcJx4rbo4agbRfIJWQU 7gziVN323mxBE/6wANpWwBJTvUYdkQMmZpX/MNLxrjv1cuPNsUuVE+XykJx4Vx9u8T WPT/iPluDmiYsc7s4Ah2Q1NyN8k9pgO6irD5s8mDw4xp9kt/KyVxS5cnhcQy5lZgyP nfvuJHUO4BiZ9crJD1uIQHmS/ICJ46kxXsjLRHrg8dnGGR6KJKHsKyXJtSU1OANj+0 UJYHjSqK8T6cxs8pAAqhC2DPanxRex3cVZxsbYVR/1Mx61NbW/7v3bp9uGO9e/SLnH 8iFk5/cu49fAg== Message-ID: Date: Wed, 24 May 2023 11:01:06 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v22 19/31] f2fs: Provide a splice-read wrapper Content-Language: en-US To: David Howells , Jens Axboe , Al Viro , Christoph Hellwig Cc: Matthew Wilcox , Jan Kara , Jeff Layton , David Hildenbrand , Jason Gunthorpe , Logan Gunthorpe , Hillf Danton , Christian Brauner , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig , Jaegeuk Kim , linux-f2fs-devel@lists.sourceforge.net References: <20230522135018.2742245-1-dhowells@redhat.com> <20230522135018.2742245-20-dhowells@redhat.com> From: Chao Yu In-Reply-To: <20230522135018.2742245-20-dhowells@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A, RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023/5/22 21:50, David Howells wrote: > Provide a splice_read wrapper for f2fs. This does some checks and tracing > before calling filemap_splice_read() and will update the iostats > afterwards. Direct I/O is handled by the caller. > > Signed-off-by: David Howells > cc: Christoph Hellwig > cc: Al Viro > cc: Jens Axboe > cc: Jaegeuk Kim > cc: Chao Yu > cc: linux-f2fs-devel@lists.sourceforge.net > cc: linux-fsdevel@vger.kernel.org > cc: linux-block@vger.kernel.org > cc: linux-mm@kvack.org Reviewed-by: Chao Yu Thanks,