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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 2B47DC4CECD for ; Tue, 17 Sep 2019 23:08:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F0AEE216C8 for ; Tue, 17 Sep 2019 23:08:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568761708; bh=KdlKBNCsr/WTU1Mf6DFmYnq56I1xE2K0yGtzyWUky54=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=Y/XCGMgD2te0PUEvq3vqFRPWfxM//bAbx1Zlzfw/k3UpYp+XZ6RNWno/BZKy4vm4P K2R0nUttqmQm+LIxUhuZnXDCxI1yKQmkiSj46u9d5vmHIiXgySKqpK2C8hOJ6iiABJ knaOOvRimJtpptKv1JZ7/mBpXDLOKZhh/StyDn2I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728148AbfIQXI1 (ORCPT ); Tue, 17 Sep 2019 19:08:27 -0400 Received: from mail-lj1-f178.google.com ([209.85.208.178]:40565 "EHLO mail-lj1-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728144AbfIQXI1 (ORCPT ); Tue, 17 Sep 2019 19:08:27 -0400 Received: by mail-lj1-f178.google.com with SMTP id 7so5233229ljw.7 for ; Tue, 17 Sep 2019 16:08:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=g82v5y3G7TVA0v7mCcq1n+V2khyOarEDdhGna/0Sk4U=; b=L8a2jFr0MK1lqzSmP1nmNC7UtLKaANtJmwm0MjDWS+KVH79086JwtyDZuUGM4T781m HoilUbcI4/1ZiN5cXpxjaOrqMFRdDS8Noew9fdkB+wySfbVXegDF6l39qyRDe+3dK4J6 jyq4YIHfLp9NTKMvV2dsp9msHtHGUv7HkFwqI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=g82v5y3G7TVA0v7mCcq1n+V2khyOarEDdhGna/0Sk4U=; b=epuVpO3Cr1FDRxoDiN5R2PBxA8Jh6LtwXFXIFMdsJsvNfttMWR6/DEP0suG4v97uoD IGaJ4Do2kKRdW4SK5gmbjq424tYF3ba6MUDqOnmqzgDUUrXPGuQpFxxF6rNIo8PbFEe7 ZfXLnQxXAtPI0VEU2dp25XNahkv1Ukbu6fC3b6JtBUDUu6qZX6mP+Wbw75iVIHZHP6Hz i1j/hZPvvfMR0yYK0BCXU8GQK9KiZNxA0kn5F+9E9iBlMD5zBE1lKq9gWkJyFlAA6KGu Rp/CKYg7vFf25hr6NtnTXA9OKRd0cKAQ68LMmjTvt0EpBJdn9pDhm1XYG8c3BaXp01qu aerw== X-Gm-Message-State: APjAAAVaiXtdf5bSAIA+Ff1kPgT+KwRQlSER/y706P3ftrpC9FdRomRg sCe9SHYMQt/Ttiddo/H9nzvXkdewKkc= X-Google-Smtp-Source: APXvYqxZlq3HAphdwx8++muNH++lpq/N9YbLOBmusP55qCJOSQ41GIqZqaKotEwO4jCbT8Y1YMZy7w== X-Received: by 2002:a2e:9bcc:: with SMTP id w12mr383545ljj.181.1568761705117; Tue, 17 Sep 2019 16:08:25 -0700 (PDT) Received: from mail-lf1-f47.google.com (mail-lf1-f47.google.com. [209.85.167.47]) by smtp.gmail.com with ESMTPSA id m8sm675871lfa.67.2019.09.17.16.08.24 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Sep 2019 16:08:24 -0700 (PDT) Received: by mail-lf1-f47.google.com with SMTP id q11so4146739lfc.11 for ; Tue, 17 Sep 2019 16:08:24 -0700 (PDT) X-Received: by 2002:a19:f204:: with SMTP id q4mr366572lfh.29.1568761704101; Tue, 17 Sep 2019 16:08:24 -0700 (PDT) MIME-Version: 1.0 References: <2658007.Cequ2ms4lF@merkaba> <20190917205234.GA1765@darwi-home-pc> <1722575.Y5XjozQscI@merkaba> <20190917215200.wtjim3t6zgt7gdmw@srcf.ucam.org> In-Reply-To: <20190917215200.wtjim3t6zgt7gdmw@srcf.ucam.org> From: Linus Torvalds Date: Tue, 17 Sep 2019 16:08:08 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Linux 5.3-rc8 To: Matthew Garrett Cc: Martin Steigerwald , "Ahmed S. Darwish" , Lennart Poettering , "Theodore Y. Ts'o" , Willy Tarreau , Vito Caputo , Andreas Dilger , Jan Kara , Ray Strode , William Jon McCann , "Alexander E. Patrakov" , zhangjs , linux-ext4@vger.kernel.org, lkml Content-Type: text/plain; charset="UTF-8" Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Archived-At: List-Archive: List-Post: On Tue, Sep 17, 2019 at 2:52 PM Matthew Garrett wrote: > > getrandom() will never "consume entropy" in a way that will block any > users of getrandom(). Yes, this is true for any common and sane use. And by that I just mean that we do have GRND_RANDOM, which currently does exactly that entropy consumption. But it only consumes it for other GRND_RANDOM users - of which there are approximately zero, because nobody wants that rats nest. Linus