Received: by 2002:a05:6a10:1a4d:0:0:0:0 with SMTP id nk13csp2432805pxb; Thu, 3 Feb 2022 06:37:11 -0800 (PST) X-Google-Smtp-Source: ABdhPJzQoS/pX9SwWC8ZMysL6km9idW2xEpuvsumMkFM+jPRkyHpGDBGsjmjN2pPWPoHnvzS9HD5 X-Received: by 2002:a17:907:3e1d:: with SMTP id hp29mr29391640ejc.701.1643899031683; Thu, 03 Feb 2022 06:37:11 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1643899031; cv=none; d=google.com; s=arc-20160816; b=ksHd42qlH1JCTRtarHGP9MQqe+SSC37xNlVlWyNoFf5SFiN29BCAYmsakSZpzaQCuW GwHyTUMkGx3QYJh4iiZsZe+KX27e9vO/WfqUIkom+HDL1Ww15xGTzIE4HhSM3KZEPEjN PQeqbdEkWWmbOExORkRtDbbrUv2DBxkvvAUtrsCfNa2OaAolBeFqCEaWBQ9Vm1NuBaJd Q+3f7k18TwZcqBPx7qqYuI/DU/mCxGqkauONxz4v5JxZqIbzplXkjNilh6Q5iqsHVXDb xRGriQYopTMGENQCdVQGTix/GbGz5Y2FZE+2oBz6stSOhgkAuSJerLEPPlC+HMPmA1+7 zEUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=YCTgMx/TPthTFsdnu0CFJGBXo2QGXtQUU49o6KmcOuA=; b=EXnMEaDkY5UkdQP77QJk71YQmPYOIeYzY8RTqkaLHFWDwayO+M+Hee9zX1q3OqYWSr GlCIq3HAy+mQ87kwGN9ASpRirCJkv0oofDdIGh1me/lTfcu6T96jvR9IX9s1MoNMbHMb uC2Mv6X8DXjedZiranL3vgGOpAsRIcTUaUXwANTpDCMX1I4lcEdHq7GX+jVI0qfMXQjW x/+sqpqdOx+E7fMLr5KR+AVt0PO/6WJMya3ieF7S+T8JUslysWLvLI/FN6Ob1TF4ZPDm /BX6QcMvOEXZGk4PhESMMPfca6uPi/GEKJPbhgax3cauB+xfiHcJT77ap36MnzG/BILX nEdA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=desiato.20200630 header.b=BxSsmVmi; 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 qw32si14562616ejc.459.2022.02.03.06.36.46; Thu, 03 Feb 2022 06:37:11 -0800 (PST) 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=@infradead.org header.s=desiato.20200630 header.b=BxSsmVmi; 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 S237116AbiBALIp (ORCPT + 99 others); Tue, 1 Feb 2022 06:08:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236791AbiBALIo (ORCPT ); Tue, 1 Feb 2022 06:08:44 -0500 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A586C061714; Tue, 1 Feb 2022 03:08:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=YCTgMx/TPthTFsdnu0CFJGBXo2QGXtQUU49o6KmcOuA=; b=BxSsmVmilzxI3s3ZiFlye0yLbS 5e+AX/exrACsktV3l10fpBEW+GN4ql9mWtTkmLx6RfCS6bt6zgfQ0ZZGxWmDYDZ4wPaqndT4hjEd0 mEkFGeDKEaR1ocA48gjLfldqlV/gu0/SVHSwjXSLARrK0wUwK78lVUDgcoM3CklSrYxb4LoNC9d6t UlvSPXicSenDsdUeUXUblwnY695mcxBDaBSbPM0meJeMCGuiqVppac1T8YJiFoTOJ4ObAjQa1Ry1f xjbc0Dbd8d9Ut1HUxhzz8IRxo1KW0ib0e3kqHnpXI4/gP69qfgtUfKUMSnJJpLrqK7/TmRPhyr09X YozHqIyA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nEr1K-005poe-Dg; Tue, 01 Feb 2022 11:08:22 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 3319098623E; Tue, 1 Feb 2022 12:08:21 +0100 (CET) Date: Tue, 1 Feb 2022 12:08:21 +0100 From: Peter Zijlstra To: Mathieu Desnoyers Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , "Paul E . McKenney" , Boqun Feng , "H . Peter Anvin" , Paul Turner , linux-api@vger.kernel.org, Christian Brauner , Florian Weimer , David.Laight@ACULAB.COM, carlos@redhat.com, Peter Oskolkov Subject: Re: [RFC PATCH 1/2] rseq: extend struct rseq with numa node id Message-ID: <20220201110821.GV20638@worktop.programming.kicks-ass.net> References: <20220131205531.17873-1-mathieu.desnoyers@efficios.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220131205531.17873-1-mathieu.desnoyers@efficios.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 31, 2022 at 03:55:30PM -0500, Mathieu Desnoyers wrote: > It is also useful for implementing NUMA-aware user-space mutexes. That really wants a futex extention..