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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 51CEDC433E9 for ; Sun, 7 Mar 2021 11:57:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 163A965115 for ; Sun, 7 Mar 2021 11:57:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231153AbhCGL5G (ORCPT ); Sun, 7 Mar 2021 06:57:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231163AbhCGL5E (ORCPT ); Sun, 7 Mar 2021 06:57:04 -0500 Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B481C061761 for ; Sun, 7 Mar 2021 03:57:04 -0800 (PST) Received: by mail-wm1-x32e.google.com with SMTP id y124-20020a1c32820000b029010c93864955so2098899wmy.5 for ; Sun, 07 Mar 2021 03:57:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=daurnimator.com; s=daurnimator; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2XTuDZrVnZ9EbYrXg7UvpBlJziCNJ1/b+V8IS2yeC5s=; b=rJV0gI4uii3RsLEZm5fBezPhA79NuurwIqf0KXXBr5WGUkbhY8U3fTg4AYT6a8eEQn p2peI3M3t/CmGP2DiEWbKMlcdCCta0oKxkXa6PpbA4dbdRO7roGRpcUlqk/beLNH/fM3 oUbTh5vt8FyjVk7gzNbaqkjCMKfIROp8RfjbQ= 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=2XTuDZrVnZ9EbYrXg7UvpBlJziCNJ1/b+V8IS2yeC5s=; b=c6fdgm1v0FK887cxx7fFq43nUwcjASffj81IFwpT932Q6Y8S+0Mh7Y01nUkMRt3Pwp vjJsrCgiRcflwq/8RmvIkQEfl/GPggzKsuPfGTxZfba7GFP8RardCv1TiD69CZ88Ts4J yhvNa3KHUBHjmv+m8IiSooTlSwc9pvg1iPIlFIMxOopgtHmxxnC7zhQJYSk8VHBeyEFo pX5DTcZBYpcybB6OXBJ82VbI9OWBNk22HBAL5ARNOMYGMuSgLbPNUkar/fsRv7AlPujV f46+bI+e0geVaYROtxG26IvW5+yJ0q58QKQTYtfwoMq7V8WNDVLoQA1xO4mfLzGg+Dvc 3KJA== X-Gm-Message-State: AOAM531Z2C1QjPCq2sM3iGQxtcOV/+yVEYhbK1qns3B6FvHUXpN5Zkm6 7Y8FlOP5vv5I5iOuvsHlfndM+45dEy8DgUDUjrYtuA== X-Google-Smtp-Source: ABdhPJx7i4NCKGHtxzcVqNtjsN8i2IQC3TPI7GO6qh5F5odB7fEkjn8i2p3wFA1amIAbSqRQZqRUEgw5fCACA66FsMg= X-Received: by 2002:a7b:cdef:: with SMTP id p15mr17827353wmj.0.1615118222765; Sun, 07 Mar 2021 03:57:02 -0800 (PST) MIME-Version: 1.0 References: <20210304004219.134051-1-andrealmeid@collabora.com> In-Reply-To: From: Daurnimator Date: Sun, 7 Mar 2021 22:56:51 +1100 Message-ID: Subject: Re: [RFC PATCH v2 00/13] Add futex2 syscall To: Stefan Metzmacher Cc: =?UTF-8?Q?Andr=C3=A9_Almeida?= , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Darren Hart , linux-kernel@vger.kernel.org, Steven Rostedt , Sebastian Andrzej Siewior , kernel@collabora.com, krisman@collabora.com, pgriffais@valvesoftware.com, z.figura12@gmail.com, joel@joelfernandes.org, malteskarupke@fastmail.fm, linux-api@vger.kernel.org, Florian Weimer , GNU C Library , linux-kselftest@vger.kernel.org, shuah@kernel.org, Arnaldo Carvalho de Melo , corbet@lwn.net, io-uring Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 7 Mar 2021 at 22:35, Stefan Metzmacher wrote: > Instead of having a blocked futex_waitv() waiting on an fd (maybe a generic eventfd() or a new futex2fd()) > would be a better interface? Like bring back FUTEX_FD? (which was removed back in 2.6.25)