Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp884123pxf; Wed, 7 Apr 2021 14:06:21 -0700 (PDT) X-Google-Smtp-Source: ABdhPJz+TYe3fPg99Wqdb3x4wsbPeFdt6ENVlKNozuu0LKvwjHNTecU6/2QOJpspxbThFIUwxotP X-Received: by 2002:a05:6638:3013:: with SMTP id r19mr4470130jak.36.1617829581722; Wed, 07 Apr 2021 14:06:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1617829581; cv=none; d=google.com; s=arc-20160816; b=H2lZQSE4sU/Oj2dkIUzsh2G3uJBI5sWCupqzsUx9lBXUeNgBAPHotLcEjqaCIdvtcP /AAqseiNh2vNvWXT2trIV5/IN92GQF0gjH3dvlFTP9oNkrJDrCI9H5sk6hyx42yoNYck odWzT2yLetJKxm01g+hgSXo55MTiatfQxaUVZvEMEmXl5sC/1gw80OmhXoDSgg4/247e cGxc5i/JH3vKm0J+CgB1ELaoED0bGnPxalwnGyAh9J0yjHYspsdHEI2m/53U2uvGfpn2 gQflSJRPIhigfzf/IyObYAMDwrHfrpoYYDEygNIlJU/8lbMOWjzS7n1XiTg9zJvWSKgn oMDQ== 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=umJ6Er88RJ+kjsFdQDsASA99MroOE5xNDgI/QiCH4QM=; b=zf53Z0aC2v3R39O0ZdLpQ4TzdlGgu5TpdtRNzrrcrGQk1UaJfxrpk3rw6SE6lRaFqz l/EPgEFy/qmlv4Du5q5qzeEV+5trSOw1xPdH1Fb4MykSnC2m4Em0lH2qflL4X7P+Jqdw j6gklMaJ+8HPd8mAnqrg80HB6IEgVfZi7nnK27CB3fRi3O/UyGkZY2pgGLaE1x983I4Y 62uI4+DxmFN8ZjiUsAS0jkEU0XhmzqlUGUmeRV05q6rBPnWLhJE+IB/r98C6ScciANTX RymfjK6tY8QX+2w3aFBvDoH6hWaie9LxouB2FTK0zDaGFYdtQpNUtbi8NPxwX5zDTj3t TWFw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=fhTqx06E; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r13si22294799iot.91.2021.04.07.14.06.09; Wed, 07 Apr 2021 14:06:21 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=fhTqx06E; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237321AbhDGOgy (ORCPT + 99 others); Wed, 7 Apr 2021 10:36:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235011AbhDGOgv (ORCPT ); Wed, 7 Apr 2021 10:36:51 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C6A9C06175F; Wed, 7 Apr 2021 07:36:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=umJ6Er88RJ+kjsFdQDsASA99MroOE5xNDgI/QiCH4QM=; b=fhTqx06EzmDXnqGUU8Hs6T2OIO GJheMtfFNne1USTF67q0QdoIrXWnu7eBYLi2ZHmbcI7sUCTZXQKqe0UZW90UqjzGJA8YSkDp80XuM mZ9QxwKvvOiZeBewK5EjK/1DSyld9HuVW6qFKyL30Og1aOCFrgMxdz5AbLkzDwzLSQsUKoyaMmtJr ESsC8Z7fUNoef76ssY+daUwApH2StlHtsqwlZcA+xos4mpyDJ7Cg8FqKR4qMFg3Wc1g1hZYbVtvhU sT5qdbMuxxq+vFQcHComPMpEQMaJtiSsIuc1AZUOvOiHFwfVj+fcBq8djBeDRVzQDTcfz5jQtScev lIpiXB+A==; Received: from hch by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1lU9GF-00EbQv-KT; Wed, 07 Apr 2021 14:34:58 +0000 Date: Wed, 7 Apr 2021 15:34:27 +0100 From: Christoph Hellwig To: Christoph M??llner Cc: Christoph Hellwig , Peter Zijlstra , Guo Ren , linux-riscv , Linux Kernel Mailing List , linux-csky@vger.kernel.org, linux-arch , Guo Ren , Will Deacon , Ingo Molnar , Waiman Long , Arnd Bergmann , Anup Patel Subject: Re: [PATCH v4 3/4] locking/qspinlock: Add ARCH_USE_QUEUED_SPINLOCKS_XCHG32 Message-ID: <20210407143427.GA3479728@infradead.org> References: <1616868399-82848-4-git-send-email-guoren@kernel.org> <20210407094224.GA3393992@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 07, 2021 at 04:29:12PM +0200, Christoph M??llner wrote: > Gentlemen, please rethink your wording. > RISC-V is neither "crap" nor a "trainwreck", regardless if you like it or not. No, by all objective standards the RISC-V memory model and privileged architecture is a trainwreck. Anyone who disagrees is way out there in the sky.