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 6BEB3C433F5 for ; Thu, 19 May 2022 23:57:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343816AbiESX5K (ORCPT ); Thu, 19 May 2022 19:57:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233238AbiESX5H (ORCPT ); Thu, 19 May 2022 19:57:07 -0400 Received: from mail-pg1-x52d.google.com (mail-pg1-x52d.google.com [IPv6:2607:f8b0:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44C597983A for ; Thu, 19 May 2022 16:57:06 -0700 (PDT) Received: by mail-pg1-x52d.google.com with SMTP id j21so6154398pga.13 for ; Thu, 19 May 2022 16:57:06 -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 :cc:references:from:in-reply-to:content-transfer-encoding; bh=GEyJce2Ip6tDV4r1iYi7wVUAyIxnQ59RJ/nhlICsEeM=; b=KVzYt38jc/NGdkdZCETpP/3XXeJ8kUTHKVU7U65GDXCG2K5e2gUeNy5GfKBoWrT9ps txrcpbHWxjq50uz8qhzQRaSwDRzXUtZXExIljD0zVeBmvkZP1t3ssnpjp7lBgvok4Y+B MLu02w6TlXYFxtC8PlQCBu1FQTX+JyYl8uW8vdQ6S2IdEDknU62/JZdEAvmUbq0IhnS0 4SHDz7ZdnufaQlAh3Y+ZGleBwCSNA931/pAxjsTogIsGp+soBv4z6G43aZ3ThpWqBzcq dQdqnGgVv6Ap5VCpaE4HV0jcR+afMllOUfxqMVHKx6f0sHRqqUJ026EaI10KS3ZbMO7P 4sNw== 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:cc:references:from:in-reply-to :content-transfer-encoding; bh=GEyJce2Ip6tDV4r1iYi7wVUAyIxnQ59RJ/nhlICsEeM=; b=2rXpH8P/GZAvSDjF5oaxp6RE1Gy3etdTNgLmBtJxgzeVIFDLmh3RH/odPAlGiWHCrb uORxQsTXfKEG+qNe5DKtTeF3SOEFKLHssq1hjNrK0mmpyasyunlA9DWo5ro5d0lHhOzF 1h+RCMCkRxmSfmSz9lsMiAGcsJitDZLZLidpZojzYWHk9Mcf19xWMTBKTHY/W30eggKK /F+3sc19VTrvZpF6V6Z3jq5fCENP1DED9ua5glgZ7vkAJ6PpGKyM+/sbtuTB2bMKlWHL 8u0O+haI0LnM4Y+I4qBokYcYqSy67u1+DRn3rqoY2Xnao7Nmj3kq2HqoDz7mJQwNNMYP 8/rQ== X-Gm-Message-State: AOAM533tBskfbscuBEe5fD++S3W7AK2rGGUyQvCwGaYsbm96gC5EQ4xl 68VzWy7ZtksG5y3fZNzJlGJ5Zg== X-Google-Smtp-Source: ABdhPJw9eZnzyF13Q2UgBAbAW048ZmkJuMW0HKSskD6+DUxqhnFGavVw8vNCl8VkEIX7yGnaa7NpkQ== X-Received: by 2002:a63:1645:0:b0:3c5:f0c2:b9c with SMTP id 5-20020a631645000000b003c5f0c20b9cmr5844062pgw.484.1653004625764; Thu, 19 May 2022 16:57:05 -0700 (PDT) Received: from [192.168.1.100] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id m6-20020a170902db0600b0015e8d4eb292sm4337021plx.220.2022.05.19.16.57.04 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 May 2022 16:57:05 -0700 (PDT) Message-ID: <03c7d6c9-0c86-d4b6-357d-d51be0143c80@kernel.dk> Date: Thu, 19 May 2022 17:57:04 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCHSET 0/2] Fix splice from random/urandom Content-Language: en-US To: "Jason A. Donenfeld" Cc: Theodore Ts'o , Christoph Hellwig , LKML References: <20220519193133.194138-1-axboe@kernel.dk> <3553b935-0aca-3d3e-2495-12288f601b53@kernel.dk> From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/19/22 5:27 PM, Jason A. Donenfeld wrote: > Hi Jens, > > On Fri, May 20, 2022 at 1:25 AM Jens Axboe wrote: >> I'll leave that to you :-) > > Alright, I'll have a look. Which one do I want here? This series adds > splice_read/splice_write. The new thing would be sendpage? Or > copy_file_range? Or something else? For copying kernel memory? It's really the same thing, you just initialize the iter as an ITER_KVEC instead. The nice thing about the iov_iter iterator that it then hides that for you, call the same copy in/out helpers for it. -- Jens Axboe