From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754799AbcAWUaE (ORCPT ); Sat, 23 Jan 2016 15:30:04 -0500 Received: from lxorguk.ukuu.org.uk ([81.2.110.251]:36642 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753266AbcAWUaA (ORCPT ); Sat, 23 Jan 2016 15:30:00 -0500 Date: Sat, 23 Jan 2016 20:29:26 +0000 From: One Thousand Gnomes To: James Bottomley Cc: Andy Shevchenko , Andy Shevchenko , Matt Fleming , Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , linux-efi@vger.kernel.org, Rasmus Villemoes , Andrew Morton , "linux-kernel @ vger . kernel . org" , Robert Elliott Subject: Re: [PATCH v3 3/4] x86/efi: print size in binary units in efi_print_memmap Message-ID: <20160123202926.460b284f@lxorguk.ukuu.org.uk> In-Reply-To: <1453572775.2470.56.camel@HansenPartnership.com> References: <1453560913-134672-1-git-send-email-andriy.shevchenko@linux.intel.com> <1453560913-134672-4-git-send-email-andriy.shevchenko@linux.intel.com> <1453567445.2470.24.camel@HansenPartnership.com> <1453572775.2470.56.camel@HansenPartnership.com> Organization: Intel Corporation X-Mailer: Claws Mail 3.13.1 (GTK+ 2.24.29; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org All a bit revisionist. Everyone else on the planet was upset about it because it broke things like calculating bit density because the prefixes for the bit capacity are not in metric form. BIPM (keeper of the SI units) never approved powers of two as an interpretation. IEC came into line in 1999, ISO followed. Disk sizes have been decimal since at least the 1970s. The original IBM 10MB hard disc for example was 10MB not 10MiB. Powers of two are only validly referred to as KiB, MiB, GiB as of all current standard body positions. Powers of 10 based units are kB, MB, GB) (The best one is CD and DVD: DVD uses the proper definition, CD uses MiB, although given the multiple sector sizes and encodings on CD it's all manure anyway) Alan