Received: by 2002:ac0:8845:0:0:0:0:0 with SMTP id g63csp921603img; Tue, 26 Feb 2019 10:52:18 -0800 (PST) X-Google-Smtp-Source: AHgI3IZnIitGxER2K1NKkbHfh+8vPjnocJxoRR4DggyAni96+Q68WlnZ3hvv2X0Gkpt2W2QRGNm+ X-Received: by 2002:a63:4b25:: with SMTP id y37mr26278866pga.181.1551207138785; Tue, 26 Feb 2019 10:52:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1551207138; cv=none; d=google.com; s=arc-20160816; b=IpUElt0Qooy9/TXDZGT/fsDqhuPmj5VoPpAtGrs7CsjAzv1gSqz5Q2KpMW4+C8VuYG bd+U651imSgjmPW8FqyUJm+EElRKw1eTQH8IOhynwM73f7s5VtTKueitXX8SYdGP2/F1 GActE4iSRj7L/mPk8AqUUY6d0SAcUu4PF13wgN1GJGyTGxUVhfGFDkk+uvUhDxbpR2MA 2QiEf6sZ+vvdc7g6/LTBcZeGUd6vU5UnZBYuvBeqRsIyoOzwgJ8TjaiJw4lAb51cwxGI mlIuHJxg8kaI19bmwt/98vxZ5LVT+W1BDs+w0ooe3ez3I/yOyKgOOp/LAzc0BjB/vZt/ VFjA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=zr86ervjjN0kTxtbCNxhF19WxQUCXtp23i2Q0cKcQWU=; b=Eq7wDrBTuZC/ydyLQlwazcJmXD1Ity6AeASzOJZZo9hwdYUkArZevJwR5wLRuCrwEj O56w+HTpq6yvKzaFgwK8S7hs9+4XMPb473GKtPNUG4kew0KC61sJkLc8XYrnQt9daJ1Z il4wxX46bFsOC9uITaCwDBNgqDIkh5bN0r8Dxis7MPPHC+dV7fmAWP5QHmXNpc/C1NDm G0S2eQvf3DmrkYKHZkGijPi3tb11RXa12FKcpROSqEoBqt7HZb0VNDW8/7rdjcfS9xk3 3ejY5+5e6fehGp3dRg9vhlWD/uLYHtlJygoSZZjmhfz+BSBFpBgH19qV9hR95TUMcX93 5yPA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=ftNbi+h2; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u8si12801242plz.97.2019.02.26.10.52.03; Tue, 26 Feb 2019 10:52:18 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=ftNbi+h2; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728632AbfBZSve (ORCPT + 99 others); Tue, 26 Feb 2019 13:51:34 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:54820 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727054AbfBZSve (ORCPT ); Tue, 26 Feb 2019 13:51:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=zr86ervjjN0kTxtbCNxhF19WxQUCXtp23i2Q0cKcQWU=; b=ftNbi+h25/VQXK/d8pYxpz4jS CeH8pim2r9ds6lHO+D0St+q41p4wCJ6m+PR6kUbbcRe73OfyNOeDVQxKUCGHBnybqR6YC+Y/vYk8E Hcmhr9KR667xBOonC9Tqrd4MMpUCF7HKDEWFhMqKpwHnJdjAGYtrG4+c7AJxucuQAZGgCPV+rPC2F 0BnNkTfJghNBKBMUoNaTyYsqiY8+lNiCmZTsCm3szAe6S+TtmSXYXJsYArqTwjcJQw5Ym9JJLbpWh WZjq/l+UCPw9LS2TdbSWfu4aR4WcYr10vfS5VCEBWDSk3kMrjIjaDy2Q3HfxHyczohWotYgDBw3WC GD87j/ctA==; Received: from [188.207.104.89] (helo=worktop.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gyhpF-0005hI-IW; Tue, 26 Feb 2019 18:51:33 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 95C40984351; Tue, 26 Feb 2019 19:51:31 +0100 (CET) Date: Tue, 26 Feb 2019 19:51:31 +0100 From: Peter Zijlstra To: Len Brown Cc: x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/14] v2 multi-die/package topology support Message-ID: <20190226185131.GP2861@worktop.programming.kicks-ass.net> References: <20190226062012.23746-1-lenb@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190226062012.23746-1-lenb@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Feb 26, 2019 at 01:19:58AM -0500, Len Brown wrote: > Restored sysfs core_siblings, core_siblings_list > > v1 proposed re-defining this existing attribute to > be the threads in a die, rather than in a package. > > For compatibility, decided rather to keep this > attribute unchanged, for now, even though > its name makes little sense, and it makes > no sense in a multi-die system. So why do things that make no sense? What breaks?