Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759292AbZKKVfV (ORCPT ); Wed, 11 Nov 2009 16:35:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759228AbZKKVfV (ORCPT ); Wed, 11 Nov 2009 16:35:21 -0500 Received: from srv5.dvmed.net ([207.36.208.214]:51782 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758823AbZKKVfU (ORCPT ); Wed, 11 Nov 2009 16:35:20 -0500 Message-ID: <4AFB2E17.6060000@garzik.org> Date: Wed, 11 Nov 2009 16:35:19 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Thunderbird/3.0b4 MIME-Version: 1.0 To: Bartlomiej Zolnierkiewicz CC: x86@kernel.org, linux-kernel@vger.kernel.org, Dave Jones Subject: Re: [PATCH RFC] x86: fix confusing name of /proc/cpuinfo "ht" flag References: <200911112134.34261.bzolnier@gmail.com> In-Reply-To: <200911112134.34261.bzolnier@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.5 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 831 Lines: 26 On 11/11/2009 03:34 PM, Bartlomiej Zolnierkiewicz wrote: > > "ht" flag indicates only ability to detect siblings not HT presence itself. > > Inspired by: > http://www.codemonkey.org.uk/2009/11/10/common-hyperthreading-misconception/ > > Signed-off-by: Bartlomiej Zolnierkiewicz > --- > It could be that there are some user-space programs depending on "ht" > flag so the patch is marked as RFC.. I think that is the only problem with this patch -- it is an ABI change. See as it's been this way for years, a comment is probably the best you can do... Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/