Received: by 2002:a05:6602:18e:0:0:0:0 with SMTP id m14csp173316ioo; Fri, 20 May 2022 17:40:19 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwf9h4kFF497tuJlZ8oWmQsvBTvA3LMZGjz45oqJnOcrFBxnPVXlb5QR1BKceXEJ9DZeJGf X-Received: by 2002:a17:907:868e:b0:6fe:293:e7cc with SMTP id qa14-20020a170907868e00b006fe0293e7ccmr10769137ejc.716.1653093619328; Fri, 20 May 2022 17:40:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1653093619; cv=none; d=google.com; s=arc-20160816; b=Yy1367S/KGYV2MYAFmCzeUq7M6Q++m+KWoDM1mc+GKVSoDImwoN8wc4coRzQ1Ss7bx GiTS98evqF3cAIxhW8usZ50vTDYFCurfBAdg6yoYXT+x5ejw+qYUDrIJQnsRG6zVLaMN +m4Df8fLV0SbZx0bUvd0zfAXf2VOQWJkQfN58pJjwTobJkHUQFLkliDfESzsG8anFjSs bxETEgvqn+5WoUrjuEdXByUBEoJgXMMYN57aq/Ec9JMSX0k9Ja61FEhmNkv88wXWJhi8 nmWmHMNAIVjIo8dEz2VI1OmxZOQIOEalYlFOA+fPTElmKkdoet0Xc4Ey4o2JjB7DTeuO Y38Q== 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:to:content-language:subject:user-agent:mime-version:date :message-id:dkim-signature; bh=BD7PI/jSYLDDXhR8nM6+izXH7+9ICId6CXZTsKRbqNE=; b=WrLaTRwmyH94hdypBTrcaw3FdR31d25FZ5Xyjf22I60wXrTKXITgsbqpvCEaNSuKWq Kf6tbRfj0ZJwhyOpN13eb2krK50gS5S9ZMh98cXi9CNddQWq7g39nNUq7QXSGtHBJLyu vMUQBkBRBKV+ZvyOIzjLCGVJ0zhUSaiW9yMxT0c1AKQnjU7CzKJ0BkCd2D36uRGz2cFv Ff2UHhqJZ2yinai39mwusnFiUAaVWvgxbyIK+overKXaVVgPkcJkywlcCGZqMKDsKS8L AtDsRP1Hj7Mrl3M0Tqt2xqDZAabV93vc38a4M6djK4d1M/S1qAF0Y0SBjAOflUEiChw/ lS9A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel-dk.20210112.gappssmtp.com header.s=20210112 header.b=ckq9CxBS; 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 Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id fj4-20020a1709069c8400b006feb0e0856dsi3204144ejc.653.2022.05.20.17.39.53; Fri, 20 May 2022 17:40:19 -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-dk.20210112.gappssmtp.com header.s=20210112 header.b=ckq9CxBS; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349028AbiETMRC (ORCPT + 99 others); Fri, 20 May 2022 08:17:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52938 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348999AbiETMRB (ORCPT ); Fri, 20 May 2022 08:17:01 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 819EC5EDCA for ; Fri, 20 May 2022 05:16:56 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id j6so7598230pfe.13 for ; Fri, 20 May 2022 05:16:56 -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=BD7PI/jSYLDDXhR8nM6+izXH7+9ICId6CXZTsKRbqNE=; b=ckq9CxBSEWsFbquFDtkNT1eWtvYCYvCxcaFNjatqqV4RF+vx0272kuGbS+NsUjv2Qz HmS3156aoONf1ZkMGEFFNqE7bvFzPMjb2EhhrPMxpYlPkekDW8RjVNmkZC6vxHewcr4v 2LaCYZUIEQ8fzBtlLezaRtpw4MBoRr/uTifNjxuWdh2ouA+z2BpGk/e2GFLqICYnEv+o SqLqMhy2RA3JwbBzF/3T+N7dhdl4D3bT1mKCiqrESB7U/fS0qX9oMqExEUS/9jcpTxtT FwCCc7r/2yvpl41dV8nl+zqfyOqTW7zPL6O3spJrB0dHuMt/0fASo0GCRjrrMfmX705y nVJQ== 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=BD7PI/jSYLDDXhR8nM6+izXH7+9ICId6CXZTsKRbqNE=; b=h5lHBjdfQrwcHvYSLv1hhCHBS9OF44S4v3KAL0JfqseiQR4tEKBrphOYvWPItZxLsb QKLw/9Ny7vkBkv4YnyywF3YhOIbxJSZOlHrqBcwNdR6VjDFnlFm5pQtMsZ1KnON2frEQ HBO3jANCDyfDMj7lyz0V1XPcmAOxFFZn5cL9R9MONDs+JJXp6WbCM+VvbwzU2kwA8rLM iHELJbZ2lSgPq7HmCO/ry4EaReMWuMVzKPTZxCTtzGHnWlZYrPXdySWbgSXn2yNaINUK JPc5J5ZFq6eYPaoqXihCPVy6aDPsas+8/PLeapxDFpFP4lenuqKohGYpleKFPzDM+I6h VsOA== X-Gm-Message-State: AOAM531nR0bhPYFr1PQE8aE22PSO7Hm2TiTg04ExHm+xGHaJo5eE4eIT O34Z5g9TiPQou015TuW30fcN9g== X-Received: by 2002:aa7:86cb:0:b0:518:3e92:f78b with SMTP id h11-20020aa786cb000000b005183e92f78bmr8607795pfo.61.1653049015893; Fri, 20 May 2022 05:16:55 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id h188-20020a6283c5000000b005183fc7c6dasm1645851pfe.5.2022.05.20.05.16.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 20 May 2022 05:16:55 -0700 (PDT) Message-ID: Date: Fri, 20 May 2022 06:16:54 -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 v4 0/3] random: convert to using iters, for Al Viro Content-Language: en-US To: "Jason A. Donenfeld" , Theodore Ts'o , Christoph Hellwig , LKML , Al Viro References: <20220520094459.116240-1-Jason@zx2c4.com> From: Jens Axboe In-Reply-To: <20220520094459.116240-1-Jason@zx2c4.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,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 5/20/22 3:44 AM, Jason A. Donenfeld wrote: > Hi Al, > > I've incorporated your suggestions into Jens' patches and simplified a > lot of the control flow. Could you take a look at these and let me know > if it looks sane? In particular, I'm using the property you mentioned in > which copy_{to,from}_iter() can take a maximum and do less if the > remaining length is too small. FWIW, ran my (small) tests and this series looks and tests fine to me. -- Jens Axboe