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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3083C433F5 for ; Fri, 20 May 2022 14:37:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350362AbiETOha (ORCPT ); Fri, 20 May 2022 10:37:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350377AbiETOh1 (ORCPT ); Fri, 20 May 2022 10:37:27 -0400 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 527BD170F1F for ; Fri, 20 May 2022 07:37:26 -0700 (PDT) Received: by mail-pf1-x434.google.com with SMTP id j6so7905536pfe.13 for ; Fri, 20 May 2022 07:37:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :references:from:in-reply-to:content-transfer-encoding; bh=Ft39s9YnF4jUcvzq1w5kbMMaYHzsE+zHP2eH0w8U0EY=; b=PVRBBNJUqNpXpWS52H3xdQX/P/MsjRNLghetF/hCiTEM1OrfqCQ4sAJYhw3z7UTA3c 16lmT+qKKEvTZ6VaUC7metHid/flN6WI2MAb7AU6Fho9hczvIGMcj5iakR0ucHw4ERbm B/6w+59k5md5YG7Za1rgmfh95+7R1jpCagZ6ERhbFO+7kZnppj4E732JK/73xnYbXRrX NlfBAsX2E66S5YJcDOlG4l2z4Xn8Bye2VHjP18nLGqmkKjTbkATYh5bM1WTsTTiHHWxT pAfHkDnLJTlG7YUkv82iNsDMhG1CFCgDEptTBO1TnA3tjFkTxNAPR5O5eoiiDxrYz7G0 7z2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:references:from:in-reply-to :content-transfer-encoding; bh=Ft39s9YnF4jUcvzq1w5kbMMaYHzsE+zHP2eH0w8U0EY=; b=thsp5zJt4sUX988gwWYDxbZynnJVLDd1CDAFxqeMzgjAwkewu9uKmXwKQxUHWrXKBS 7GSPGOEabNgFaNttZU73DDFutX7iCvK8iWQI6EK0fyZfCaFyM8sT0MhXSwgUDKf5HllY dsQ03gdfbtV7RwWgc90Vq8Bp8n4ABAM9zzZLqpHqIDtqFDPEi7mG3qyOZnE2ulSg0c/v MK+H1NmYG3EA374sMCi3IKTfq64LU5vSD2Riq6G9M8APH16FnLT7aD+/KHgMgAgOlYDW l6SrCVzgIYZ7Kh3Ad9GbL/oojA73oWw72DfgQ7ONsgoKNizFPmqF5SP8uIKg2ZltTFuR J4YQ== X-Gm-Message-State: AOAM5322XkvluMPmj2G7laqv0TFRWYHDxubZ6vqdTWZ3O11vFHTVSDTt RR/ZHuYHvH7yaoGgivYhQUa4Cg== X-Google-Smtp-Source: ABdhPJygloC7AYK6iNI8gFmXE42/H9Z2I8/vO+Kho3jD0oUSnd0bkZGt2GgWiKM+vJndd8l/vE8sFA== X-Received: by 2002:a63:d90c:0:b0:3c6:4ab4:fbfe with SMTP id r12-20020a63d90c000000b003c64ab4fbfemr8819887pgg.499.1653057445575; Fri, 20 May 2022 07:37:25 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id r19-20020a63fc53000000b003f60a8d7dadsm5195525pgk.15.2022.05.20.07.37.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 20 May 2022 07:37:25 -0700 (PDT) Message-ID: Date: Fri, 20 May 2022 08:37:23 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCH] fs: prefer read_iter over read and write_iter over write Content-Language: en-US To: "Jason A. Donenfeld" , viro@zeniv.linux.org.uk, linux-kernel@vger.kernel.org References: <20220520135103.166972-1-Jason@zx2c4.com> From: Jens Axboe In-Reply-To: <20220520135103.166972-1-Jason@zx2c4.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/20/22 7:51 AM, Jason A. Donenfeld wrote: > Most kernel code prefers read_iter over read and write_iter over write, > yet the read function pointer is tested first. Reverse these so that the > iter function is always used first. Acked-by: Jens Axboe -- Jens Axboe